Duramax speed sensor problems. ZeroGravity58 Well-known member.

Duramax speed sensor problems I also just replaced the sensor, after that the light would be on but at 40mph it would go out and abs would kick on for a few seconds resulting in a hard pedal. Took the new 2019 L5P, LTZ to a local dealership, and of course the truck was Hey guys, been a while since I've been here. The Duramax LGH, Duramax XLD25, Duramax XLD28, Duramax LWN, and the Duramax LM2 go a step further in providing better emissions, thanks to the diesel fluid/urea injection feature installed on them. Then the speed sensor reads erratic and affects operation Best money you will spend on your truck. Many sensors depend on having a 5V reference circuit to power the sensors. 12 posts · Joined 2009 Add to quote; Only show this user #1 · Oct 8, 2009. Fuel Injector Issues. Of course, there are tons of sites and videos describing how to change out the rear ABS wheel speed sensors. I believe burnouts/tire spin may also cause erratic speed sensor codes, because the EBCM sees the front & rear wheels going different speeds. 25" tires) Around 35,000 miles The trans would have an alarming CLUNK when downshifting (coming to a stop) And I mean alarming. Feb 3, 2016 #7 Chevy1925 Speed Sensor of Speedometer itself? M. 2002 Chevy 2500HD Ext. To reset the speed reduction I erased then rewrote my ecm with a stock file. ProSource Diesel takes a closer look at these problems and how the L5P differs from the LML. 4K views 15 replies 12 participants last post by mizterwizard May 16, 2019. I believe you are having 5V reference issues with your truck in general. LS3 C5 Discussion starter. My lbz started locking into whatever gear it deems Hi-way speed with cruise on, I could watch my boost pressure climb and drop between 5 to 20 psi. Sort by Oldest first Oldest first Newest first Most Well i had the problem your explaining. When it would fail the ebrake light/chime/TCS light would come on. 1. Sure, thats DC not AC. 5-05 LLY Duramax Powertrain Turbine Input Speed Sensor P0717. 2-3 and 4-5 started flaring (shifting into neutral between shifts) and then bangs into gear pretty bad, Also Before moving toward the solutions or fixes, let me first provide you with a list of some common Duramax LB7 mass air flow sensor problems so you can solve them efficiently. The 3. The p064c. The new style connectors do have a tendency to cause concerns if they are not fully locked in place. The sensor is just a magnet and coil that generates a varying charge at different speeds. Not every instance will require replacement of the sensors, only if it breaks during the removal process. I found a used turbo. stevoj8 Discussion starter. also my code reader wont erase these. Usually happened after hard bumps/potholes/bridge approach seams. I have to drive a few seconds, The electronic control module (ECM) converts the data from the vehicle speed sensor to a 128K pulses/mile signal. Jump to Latest P0717 Input/Turbine Speed Sensor A Circuit No Signal P0726 Eng Speed Input Circ Range/Perf C0035 Left wheel speed sensor C0040 Right wheel speed sensor B0229 HVAC actuator circuit I have heard the wheel speed sensors Chevy / GMC Duramax 04. CapnDean Discussion starter. I spent an hour getting this all cleaned off to get to the sensors. Another person has told us that a whole new DEF After driving a few miles at normal speeds, the readings all calm down to normal values. The other sensor is the output shaft speed (OSS Last week my truck experienced a P129F code (Fuel pump driver control module fuel speed signal incorrect). Eliminated connector, and regained continuity to the tcm. Can anyone tell me if there has been a fix for this problem? I have been advised that a new sensor on the tank may work but, as this will cost $1,000, with no guarantee of success, I am wary of getting this done. Ron Nielson - Brake Problems on ‘07 Classic CCSB LBZ 4x4 . I have replaced thermostats, temperature is reading around 200-210 on dash. dmaxchev New member. ** Have been experiencing problems with the DEF system and was speed limited recently. Ron Nielson. I’d love to get it going again lol Did I mention the transfer case rebuild prior to the RSInhibited problem. 1 post · Joined 2017 Add to quote; Only show this user #1 · Sep 8, 2017. The abs So when you drop into gear, it shows zero slip between input speed and turbine speed? In gear the slip should show the same as engine speed until you start moving Problem #1: Connector 18" up the line from my output speed sensor had gone bad. A. Very fortunately, we were on flat ground and not going Theres a speed sensor in it to provide actual fan speed readings back to the ecm, then 2 wires that go to an electric coil. It fixed all of my problems. First installed brake it worked quite well for about an hr, then it started harsh down shift and skid rear tires almost put me into the bank with 20ft 2011 Duramax Transmission Problems. Apr 23, 2020 #13 If you air tested the intercooler and piping and it held and you have plenty of fuel if it is smoking black, only leads me to think it's the Of course, there are tons of sites and videos describing how to change out the rear ABS wheel speed sensors. Best money you will spend on your truck. GM began producing the Duramax LBZ engine in 2006 and continued from 2006 to 2007. We got a new engine speed sensor but I can’t figure out where it goes or how to change it. Jump to Latest 867 views 3 replies 2 participants last post by Ron Nielson Aug 11, 2024. This would not allow the trailer brake system to work ( I assume because the brake module could not get an accurate wheel speed The dealer has the equipment to tell which wheel speed sensor is causing the problem. Tore it apart and cleaned everything. The end of the sensor had a considerable amount of black sticky gunk on it, the kind of stuff I imagine you guys finding their EGRs. Some of those changes Which speed sensor? Jump to Latest 1K views 1 reply 2 participants last post by biketopia Jan 17, 2013. It senses the position of the accelerator pedal and sends signals Have been experiencing problems with the DEF system and was speed limited recently. WOODDUCK said: 2017 gmc 3500 duramax 6. The old one was SO corroded, I had to dig out the rubber cover. Now we are getting P0727. First installed brake it worked quite well for about an hr, then it started harsh down shift and skid rear tires almost put me into the bank with 20ft Below is a video where we cover the process of correcting that. 21 posts · Joined 2007 Add to quote; Only show this user #1 · Sep 26, 2007. rickinsav · Registered. 07. Gear indicator lights dead, speedometer not working. 12731 posts · Joined 2009 Add to Chevy / GMC Duramax 07. Left for work a yesterday and as soon as I hit 15 MPH the ABS light and the red Park Brake Light came up along with the service brake system warning. 7K views 3 replies 4 participants last post by HD Dmax Machine Apr 5, 2018. I’m still in the process of finding exactly what the problem is Over the years when someone has had a front speed sensor problem, just replacing the sensor has seemed to be a hit-or-miss solution. I’m still in the process of finding exactly what the problem is Which of the two twisted pair wires is the speed sensor circuit and what can be done to troubleshoot the sensor and wiring? Thanks. As it picks up speed it is o. I took it to the dealer, they replaced a sensor. I plugged in my scanner and i'm getting these codes. I’m hoping I can get some help here first on narrowing a few things down that could be causing the problems before handing over my wallet to the dealer. 2004. That makes me think its not a wiring issue. (Stolen) Save Share Reply Quote Like. The shop replaced the module and the in-tank fuel pump (they had to drop the tank Well I got to fixing it a few days later and I scanned my truck with the scan took and it said RR wheel speed sensor. Each side will generate a small AC voltage. Jump to Latest 12K views 5 replies 2 participants last post by griebaar Jun 14, 2014. Feb 1, 2011 42 0 0 Cynthiana,Ky. No movement= proceed to unplug each wheel speed sensor and connect a multimeter set on ACmv. R. Last night on my drive in from Houston truck game me the dreaded 55mph max Faulty Transmission Speed Sensor Symptoms. Save Share The TCM is constantly calculating the ratio between the turbine speed sensor and output speed sensor. A P0500 code indicates a VSS issue, while a P0720 points to a transmission speed sensor problem. Often, talk was of rust and the sensor lifting from the hub. recently replaced speed sensor in tailshaft. I cleared the code after replacing thermostats and fan clutch Duramax; GMC; 5 Common Allison 1000 Transmission Problems and Solutions. The turbine speed sensor is right behind the bell housing on the drivers side top. So I have well above average skills to install such a basic plug an play system. I have a p064c as well as the 2 nox sensor codes. Sensor might not be clocked ( bracket Speed sensor problem. k. LBZ is a highly Duramax Throttle Position Sensor Problems [07 Problems] The throttle position sensor (TPS) is crucial to the Duramax diesel engine’s performance. I have a stock 05 Duramx engine and transmision . Not sure if those are important factors but figured I'd mention them. 06-07 LBZ & LLY Duramax Powertrain C0055 Speed sensor. Jump to Latest 17K views 31 replies 15 participants last post by CapnDean Feb 27, 2014. Scanned the truck and got no codes. 5-2019 trucks, this will fit for the output speed sensor position of the transmission only. Def problems. U029d&e codes come right back and speed reduction starts over. So I got one from Napa, ripped the old one out with a lot of work, had to clean up the area a bit and by time that was all set It is extremely common for the retainer clips on the transmission speed sensor connectors to crack, snap off, or otherwise fall apart. The electronic brake control module (EBCM) uses the I replaced the speed sensor on top of the transfer case but it didn't help. Considering the lemon law at this point. 02max2500 Discussion starter. V. **For 2015. 0 Duramax seems like a great engine on paper – it can tow a lot, it produces good power, and gets great fuel economy all while being available in half-ton trucks, competing with the poor fuel economy V8’s. Code p0722 output sensor we replaced sensor and truck isn’t shifting out of first. It is built exactly like a regular thermal activated fan clutch except instead of using the external Speed sensor problem, STUCK IN GEAR. Cannot find any wiring schematics for this truck. If we got that thing up and running i will offer the ready programmed chip to the users of this forum for I ran by the local auto parts and pulled the following codes C0055 "Rear Wheel Speed Sensor circuit malfunction - signal invalid" Current & History , C0550 "Electronic Control Unit Performance" (ABS) History, & P2563 "Turbo Charger Boost Control Position Sensor A Circuit Range / Performance" Intermittent. An eratic speed signal can only be a few things: - Sensor - tone My 2003 c5500 duramax/allison rollback is having a speedo issue. As described, this sensor is used to monitor the speed of the transmission’s input shaft. 102 posts · Joined 2015 Add to quote; Only show this user #1 · Mar 6, 2021. The issue never went away and went right back to CLUNKing. Only at speeds between 40-60 mph, the speedometer jumps around sporadically and the Service Brake Light and ABS light goes on. The speedometer is driven by the PCM based on the speed sensor signals. Ryne W. 2005 GMC Sierra SLT 6" Lift, 20" Monster XD's on 35" Trail Grapplers, Airaid Intake, MBRP DP, EGR blocker Chevy / GMC Duramax 06-07 LBZ & LLY Forums. 10:1 (the first gear ratio in an allison Tire pressure sensor problems. Now has problems with the Speedo bouncing over 50. Thanks to all for Did the problem kind of start around that time?I've seen people buy old injectors run them thru a cleaner and resell them as refurbished. Sometimes TPS goes bad and fails to function properly. The TCM is on a high speed data bus Hey there enthusiasts, I have a 2005 duramax- 5 speed allison. 00 cdn ( fck'in ouch) and it was fine for about a year, then starting messing up again. New sensor lasted a day but has I also know my cruise control/brake switch is been giving me problems I have to move the petal around to get cruise to engauge. When the message appeared on my DIC my ABS would not work due to thte faulty wheel speed sensor. Please help. I have fixed a number of speed sensor problems by cleaning dielectric grease off of the connectors. 20" Fuel wheels and 33" tires (actually 32. This is an easy problem; install a MAP sensor spacer and clean off the soot with an electrical cleaner. Verified yup no voltage from the sensor, but the abs side showed close to 12v not running in neutral. Trevor. so, my allison COMPLETELY out of the blue one day started showing all kinds of weird symptoms. 2001 GMC 2500HD SLT EC/SB LB7 ----373,000 Kms -EFI Live (BR PowerSource) 2002 Chevy 3500 dually 8. After a couple restarts, the code will clear and no problems unless I let the truck idle for several minutes from cold start. At 85 on the speedometer the truck defuels like it is supposed to but the real road speed is 36mph. I changed out the sensor at $ 700. I have run into a brick wall with a recent problem that has been persisting for about 2 weeks now. 5K views 5 replies 3 participants last post by molsonb Jul 31, 2023. Hit a bump and the service break and ABS light turned on, soon after the Speedo stoped working. I also checked both rear speed sensor plugs to make sure they were getting power and they're both getting around 24 volts. Currently 111,xxx miles. The PCM typically takes into account an array of factors including the driver’s throttle position and the vehicle’s current High accuracy sensors measure input shaft speed, torque converter output shaft speed, intermediate shaft speed, and output shaft speed to allow the transmission to learn and adapt for slippage and/or rough shifts and some learning has to occur as the engine/transmission combination experiences new conditions. Accumulated Dirt or Contaminants. The L5P Duramax enjoys several big changes from the LML engine that greatly improve its performance and reliability. My truck's speedometer normally behaves perfectly, except when I'm driving Chevy / GMC Duramax 04. Jump to Latest 14K views 15 replies 11 participants last post by powercall Mar 13, 2009. Dominic06 Discussion starter. 4K views 12 replies 6 participants last post by ChevyTech77 Feb 28, 2022. Mar 15, 2013 #3 I replaced the sensor to start with, still same symptoms, i have no looked for obvious wire damage with no luck! Could it be a tcm error? dmaxchev New member. alphayam Discussion starter. This could also be caused by a wiring problem such as a short to Solutions. I can't for the life of me figure where the wires ripped out from. speedometer itself I have a 2011 Chevy 2500 Duramax/Allison. It initially worked as advertised. See photos. 2) Check Engine Light Knowing such common problems can let owners be proactive in terms of maintenance and avoid expensive overhauls. Inspect the wiring and connectors for the speed sensors. 5/20, Robs efi live tunes, deleted, 4" flo pro. dtuff Discussion starter. Took the new 2019 L5P, LTZ to a local dealership, and of course the truck was From reading forums on here I learned it may be the speed sensor so I replaced the sensor on the wheel that was worked on with a AC Delco one and it didn't fix anything. If the MAP Sensor Just unscrewed the turbo vane position sensor. With speed sensors only producing 150mV at low speeds, dielectric grease can interfere with the signal. L5P Duramax vs LML Duramax . Any tips? At this point the truck has been a very large paperweight in the driveway. Jump to Latest 6. I found the sensors were totally encased in dried caked mud. The ABS and traction Verify the scan tool MAP Sensor parameters are within the range specified in the Altitude Versus Barometric Pressure table. 6K views 1 reply 2 participants last post by Ron Nielson Sep 17, 2017. now i know the p)722 is the speed sensor at the rear of the TC, and i have gone over wires and found nothing that is broken or damaged. T. If someone could point me in another direction if im missing something. According to their expert, the ABS Sorry guys this problem is on my duramax . Chevy Silverado 2500 HD – (Boykov / Shutterstock) The only major symptom of bad wheel speed sensor in Chevy Yeah sounds like a wheel speed sensor. These elements are contained in a housing which is mounted adjacent to a rotating ferrous member. Feb 1, 2011 42 0 0 Only thing i can think of is the wheel for the speed sensor inside the tcase has an issue. . 94,000 miles. All though, at the time I had a PPE tuner and it seemed to be messing the sensor up. Home; Blog ; Chevy; Duramax; GMC; 06 Common LBZ Duramax Problems and Solutions. Freshed it up and moved all of my new vane sensor and solinoid over to it. 0 Duramax engine. Blackcloud556. When the shop replaced the speed sensor, they said there was debris all over it. The PCM needs data from the speed sensors to shift smoothly. And Speedo wasn’t working. Could a speed sensor problem itself cause ALL of these codes or is there a good chance I have a few problems dropped all at once on me here? I do not believe there is anything wrong with the sensor itself, but there could be a wiring problem. Each code can help diagnose the problem- best to not guess. I'm @ 28xxx and no problems lately. 5-10 LMM Forums. Have a 2011 Chevy LML, 2500 CCSB 4x4, stock. One of the most common issues you can face with the mass air flow is the accumulation of dirt or contaminants. Pretty common problem and a easy cheap fix. Tonymarucio Discussion starter. When after i fixed the problem, as That's engine speed sensor on the bell housing. If you feel around the top side of the rear half of the case, you should come across a wire (smaller, not the larger harness on the front half of the case that goes to the encoder motor), follow that wire to a 2 pin plug in a sensor (speed sensor). Last night I took the truck to work as I wanted to keep it running in the compound to do the rad flush. S. Drove the truck a few days no issues. The engine has actually proven a lot more reliable than RAM’s disastrous EcoDiesel and Ford’s already retired mini-Powerstroke but it still has a Chevy Silverado 2500 HD has a speed sensor at each wheel hub which measures the speed of the respective wheel and transmits the information to the ABS control unit. Symptoms generally include rough idling Pull the sensor out & check it for damage. Skip to content. 3 posts · Joined 2024 Add to quote; Only show this user #1 · Oct 9, 2024. 42 posts · Joined 2011 Add to quote; Only show this user #3 · Jul 12, 2013 (Edited) Plz I have about 8" of wire left on the sensor, and it runs in ~16" of split loom that is dangling. jonapayton Discussion starter. A faulty VSS, PCM issues, and damaged drive gear are some of the possible causes of the P0500 code. A bad crankshaft or camshaft position sensor may prevent the car from starting. Jeff . baddiesel Discussion starter. Continued drive home, another 300 miles without any issues and the two lights still Illuminated. Save Share Reply Quote Like. I has some 285/75/16 tires put on my truck and when I left the tire shop all the tire sensors were reading, I had to put more air L5P Duramax Problems . Noticed some hard shifting 2-4 in my 08 LMM. There are some signs of Duramax throttle position sensor problems, including hesitation to accelerate, accelerate itself, lack of power during acceleration, poor fuel efficiency, abnormal engine vibration, jerking, check engine light pops up on the dashboard, etc. We cleared the codes while at the store and C0055 I have approx. about 2 weeks ago I was driving home, it was about 20 degrees out, roads were slightly wet. I just changed a sensor and am having this problem on the new sensor side. 6327 posts · Joined 2010 Add to quote; Only show this user #7 · May 3, 2013. Replaced the wheel speed sensor. If you want to bypass low fuel rail pressure code on the LMM Duramax engine, you will need to check the fuel pressure sensor, fuel filter, lift pump and pressure regulator and replace the faulty part. 71 posts · Joined 2013 Add to quote; Only show My code shows output speed sensor circuit range performance. now here is just a bit of more information i have about 50k miles Dealer said a rear wheel speed sensor needs to be replaced. That will be your bad sensor. According to their expert, the ABS The speed sensors are variable reluctance devices which convert mechanical motion to an AC voltage. Jump to Latest 44K Does anybody have a diagram for all the speed sensors? Parts house told me this vehicle has 6 911 Problems Forum Lly Transmission Problems HELP I was using my duramax today to haul wood around the farm. The Allison 1000 transmission is a popular and reliable automatic transmission used in many heavy-duty GM trucks. If the PCM Hey guys I had my trans rebuilt by a reputable builder local to me back in October of last year. Joined Apr 1, 2016 · 39 Posts #47 · Sep 5, 2017. 1/ally, 65,000 miles, fresh filter and fluid, recent new tires bout 10k miles ago 235/85/16s. 2019 L5P 3500HD LTZ Z71. 0. Only show this user. I ran across a very old post on Yahoo answers concerning the ABS sensor location of a truck like mine. Thanks for your help in advance! Like i said he only got problems uphill at low speed in hot environment temperature. Jump to Latest 1. The dealer has the equipment to tell which wheel speed sensor is causing the problem. Hand spin each wheel. Over time, the sensor can catch some dirt I was told by a trusted GM mechanic that this is due to a bad temp sensor, can anyone else confirm or have the same problem? 2005 LLY 4x4 Crew Cab Short Box LS Edge Juice 4" Turbo Back Exhaust FPRV Shimmed EGR Block Off PCV Re-route Boost Controller BFG 265/75/16. Currently, I'm away from my residence. I guess that makes sense when you think about it. But its no prob to include temp and fanspeed sensors as well. Only code that came up was a P0722, for the output speed sensor. This is a new thread on an issue that I posted 2011 Duramax Transmission Problems. 1K views 8 replies 5 participants last post by Ottowood Mar 5, 2023. fingers crossed!!! Sent from AutoGuide. Or possible tcm issue but i dont think that would be the problem. I have changed oil, trans , & fuel filter. I unplugged and If you have a scanner that can read wheel speed sensor data, then hook it up, and on a 'safe low traffic area' watch the data as you are slowing down, and one sensor will look like it drops off speed all of a sudden close to the stop. I then ran the wires, trying to see if the problem was wiring. Apr 23, 2020 #13 If you air tested the intercooler and piping and it held and you have plenty of fuel if it is smoking black, only leads me to think it's the Always best to post the fault codes-- most likely it is P0735- "Incorrect 5 gear ratio". Ok guys, I have an enormous problem I have an 06 Chevy Duramax, Allison 6 speed, little under 150k miles. Since I bought it 3 years ago I always considered the brakes to be The fault code P0722 can be caused by: a faulty Output Speed Sensor (OSS), an open or shorted Output Speed Sensor harness, a poor electrical connection in the Output Speed Sensor circuit, or a faulty Powertrain Control Module (PCM). I then came home and got under the truck to locate these. codes came up DTC message P0700 TRAN CTRL SYS ERRORDTC message P0721 OUTPUT SPEED SENS It was a high hit rear of cab. This article will discuss 07 Signs of a bad throttle position sensor. Tried another sensor, same thing. The P0700 just turns on the fault light-- Like-- "Hey, You have a trans problem" Well i had the problem your explaining. Things got better. 5 Duramax LLY Crew Cab 4x4 4" Turbo Back MBRP SS Offroad Series AFE Stage II Cold Air Intake with ported mouthpiece Edge Juice with Attitude 33" BFG All Terrains Plugged Turbo Resonator EGR Blocker and I’ve spent days looking for someone with similar codes and speed reduction. If the calculated ratio doesnt match the intended/programmed ratio, the TCM will limp. P0722 = Output Speed Sensor noise/unrealistic change/no speed First thing I would check is the wiring for both of these sensors. My truck is an 04 Lb7 ccsb 2500hd it has 311k on it the rebuilt trans has probably 12k on it now but I’m thinking my transfer case is on it’s way out,recently when towing my skid steer (around 11k) the truck acts like it doesn’t have the power it should and it’s thrown a p0735 The P0735 is incorrect 5th speed ratio-- Can be slipping clutches, or speed sensor. Today I ordered 2 more speed sensors and a NSBU switch so ill throw that on when it get's here and see what happens but still Purchased a Banks Speed Brake # 55445 from Amazon / Juiced Motorsports in May of 2015 for our 2007 GMC Duramax 2500 HD (LBZ). 0 Duramax. Made an appointment with my local dealer to get fixed. Hi guys, I'm looking for advice on what seems to be an unusual problem. Check wires for rub through. The first is known as the input shaft speed (ISS) sensor. Dielectric grease is an insulator. Was wondering what the Chevy / GMC Duramax 04. Some of the common symptoms related to the P0500 code include Extremely High Speed Idle Problem. 5-05 LLY Duramax Powertrain C0055 - Rear wheel speed sensor. Finally i replaced the hub, light is still on but the abs doesnt kick on at 40 anymore. Any time I turn the truck off, I have to use my i-dash to reset the ABS, brake, traction control and a couple other lights. I have an ‘07 classic ccsb Lbz 4x4. 2008 2500HD LTZ, EFI Live- Idaho Rob's Tunes, 4" Magnaflow Turbo Back, Raptor 150 Lift Some may dissagree but, I do not recommended dielectric grease on Allison connectors. Banks speed brake 2008 gmc issues Installed this brake myself, not a truck mechanic by trade but I am a engine builder efi tuner by trade. Hello, I have a 2006. if i tinker with it enough itll go into gear and drive like it should. Menu. Jun 24, 2013 44 0 6 Boise, Idaho. Grab a code reader that does abs. CTS never moved at all, read 100% no matter what I did to the sensor. GM most . codes came up DTC message P0700 TRAN CTRL SYS ERRORDTC message P0721 OUTPUT SPEED SENS ABS problems Thread starter 07lbzdirtymax; Start date Feb 3 , 2016 What normally causes this is rust on the hub bearing surface where the speed sensor goes in prevents the sensor from dropping down all the way, and at slow speeds it loses signal from excess sensor gap. With loose connectors, corrosion can become a problem too, if the connector becomes partially unseated. The problem is that my truck doesn't have ANY sensors on the rear axle! Back to searching the internet. Checked and brake module and You can get the spacer separately but the tone ring is in the hub and the sensor is rarely the actual problem. If the MAP Sensor pressure is not in range Refer to Circuit/System Testing. 16. I’m still in the process of finding exactly what the problem is I’ve spent days looking for someone with similar codes and speed reduction. Once in a while the brake warning lights would turn off but would come back on ok to start off the truck is a 2005 dually 4x4 8. The ABS Sensor that will need to be replaced can be found here: FRONT WHEEL SPEED/ABS SENSOR Check here to view Mechanics Minute Ep 5. got home and i parked my truck in my heated shop (stays around 55 degrees constantly). Since you have replaced the hubs and a wheel speed sensor, the problems must be elsewhere in the circuit. Two signal wires extend from one end of the C0035 Left wheel speed sensor C0040 Right wheel speed sensor B0229 HVAC actuator circuit I have heard the wheel speed sensors could be related to the tranny codes but not sure what the cause is, any input would help. In this article, I Remember that what can resolve Jeep Cherokee speed sensor problems, such as resetting the ABS light, can be different from solutions for other vehicle models like a Chevy, so make sure to check your vehicle carefully. 0 volts, the sensors don't work correctly, and your truck has problems, possibly in many areas, just like yours. Input Speed Sensor - P0716. J. These sensors are vital for proper operation of the anti-lock braking system. 00 later I’m driving away lighter on cash but glad to have my truck back. If these components are in good condition and you still notice the code, you’ll need to check and replace the fuel pressure relief valve. Around 80k-ish miles the wheel spees sensors started giving me issues. Old ass thread but I was searching for an answer to this There are generally two speed sensors that work in conjunction to provide accurate transmission data to the vehicle’s powertrain control module. 11-16 LML Duramax Powertrain. P0848 P0834 P0658- actuator supply voltage A circuit low P0757 PO071- Trans temp sensor circuit signal high U0073- control module communication bus off U0100-Lost Allison Trans Problem. Jump to Latest 253 views 6 replies 3 participants last post by jonapayton Oct 13, 2024. caelcamino71 Discussion starter. With your bushing bad, it is possible for the tone ring to get too close & make contact with the sensor. I I know this sounds unrelated but I kept getting the same message when I had a freyed wire on my front wheel speed sensor. Usually happened after hard bumps There's a known issue where rust builds up between the hub and wheel speed sensors, and it opens the gap on them causing erratic speed readings at slow/parking lot speeds. Cleaned it off, turn the ignition on, and tested it on the CTS. here is the codes i read with an Actron code reader. This can result in loose connections, trouble codes, transmission limp mode, and shifting issues. 2003 GMC Sierra Crew Cab 2500 HD DMax LB7 K&N Cold Air Intake, otherwise STOCK 303,000 miles and still kicking. 2011 Chevrolet Crewcab 2500HD Duramax 4X4 Z71 Airaid Synthaflow, H&S Mini MAX w/ Kory's tunes, Diamond Eye Down Pipe, AFE 4" with muffler, Jaytp the problem is the sensor reads speed when it reads 0 but the truck is still moving it senses the wheel is locked up even though it isn't and pumps the brakes . The TCM is on a high speed data bus The P0500 code stands for “Vehicle Speed Sensor (VSS) Malfunction,” which means the powertrain control module (PCM) has detected incorrect speed readings or no signal at all from the VSS. This is why they wanted to replace the P0526 Fan speed sensor. Ron Nielson - Most of the information I provide relates directly to my 2008 LMM - Your truck may be a little (or a lot) different 2008 Silverado LT, Crew Cab, 2WD,LB. Jump to Latest 26K views 17 replies 4 participants last post by elkhornsun Mar 14, 2016. I understand that the ABS / Brakes warning light is because there is a discrepancy between the VSS and the wheel speed sensors. 04. If the ECU doesn’t know the position of the crankshaft or camshafts, it won’t know when to fire the spark plugs. Each sensor consists of a wire coil wrapped around a pole piece that is adjacent to a permanent magnet. But sometimes it's the wheel bearings getting sloppy, and the sensor just doesn't see the rotor. Jump to Latest Scanner said rear wheel speed sensor fault. You get erratic spikes Yeah, apparently the cars own braking system, the ABS system, Stabilitrak, Traction Control and trailer brake signal strength are all linked; therefore if the truck detects a problem with the ABS (like a failed sensor) it deactivates the ABS system and the signal to the trailer (as well as the stabilitrak and Traction Control). 5 LBZ My cruise control works, speedo Customer: I have 2003 Chevy Siverado, 2500HD Duramax/Allison, 4WD crewcab My check engine light came on, bells started going off, speedometer needle started bouncing, dash message read, service brake system, transmission would not down shift. B. Jump to Latest 23K views 11 replies 9 participants last post by Ddbishop Jul 15, 2024. Also, front driveline has yet to be installed. I’m still in the process of finding exactly what the problem is 2011 Duramax NOX sensor @ 750 miles, 3 DEF Quality Poor messages since all were Force Regen'd and recalibrated. Like it grounded down on something. The P0700 just turns on the fault light-- Like-- "Hey, You have a trans problem" Chevy / GMC Duramax 11-16 LML Forums . You might have a bad dimple on the converter as that is the sensors signal point. I have a 2019 silverado I have all the lights going off on dash. So I connected the code reader and there was a P0502 - Vehicle speed sensor circuit low input, and a P0401 EGR flow insufficient detected. I have checked and cleaned every ground on the truck and there’s no visible damage to any harness. I also but in a different turbine and compressor wheel but thats neither here nor there. Replaced TCM and reflashed ECM. Jump to Latest 4. At this time I am currently changing out the ignition lock cylinder housing which has a spot for a plug that I read could be culprit. molsonb Discussion starter. The truck needs to know where it is pointed and also the speed of each wheel, otherwise, the ABS can't figure out what inputs to apply to stabilize the truck. _____ 2011 GMC 3500 HD LML ECLB, rancho 4" lift, airbags, fuel maverick 20x9 +1, toyo at2 xtreme 35/12. Remove the caliper ear assy and rotor on that side, and remove the allen screw for that sensor. 5 posts · Joined 2013 Add to quote; Chevy / GMC Duramax 04. D. 2006 Duramax LBZ 320000 miles, yesterday drove approx 100 miles towing a 4000 pound trailer, on the return home I lost my cruise control and Turbine speed sensor problem. Below, check out the discuss the most reported issues with the 3. Are there speed sensors in both front wheels or just Van is stuck in limp mode and only operates in second gear. Now when I searched that I found that it may link up to a bad connection in the TCM. Where in the heck is the other end of the Code coo35 speed sensor replaced didn't fix the problem. Needless to say, not too happy. I did notice a couple weeks ago that the inside of my front driver wheel rubbed through the rubber coating on what I thought might be my wheel speed sensor, I fastened it back out of the way and it has worked fine with no problems until now. Usually the seal on the hub fails and you get rust that piles up on the sensor. So I have what I thought was a speed sensor issue a while back because my Speedo was incorrect causing the truck to shift weird. As soon as I got it (first week), transmission locked into limp mode. VanGoat Discussion starter. The output speed sensor is on the top at the output of the trans or the rear of the t-case if you have a 4x4. It has an excellent reputation, but it’s not without issues. Meaning, if, in 1st gear, the ratio/difference between the turbine speed and output speed is anything other than ~3. Bought used from the original owner at 51,xxx. Next day Does anyone have the color of the speed sensor wire? 05 3/4 CCSB 4x4 4" Magna flow exhaust no cat Killerbee mouthpiece Banks 6-gun PDA 18x9 Black Rockstars 275/70R18E BFG's Save Share Reply Quote Like. Engine speed sensors are often a critical component of a vehicle’s timing. 06-07 LBZ & LLY Duramax Powertrain ABS activating at slow speed. BoilerUp. Got speedo working but no shifting out of first No broken wires to tcm getting 9 volts at sensor and 9 volts at tcm. 11 posts · Joined 2021 Add to quote; Only show this user #1 · Aug 19, 2021. It is popping up codes P0842 ( trans fluid pressure sensor) and p07000 ( trans control Mil request) What do I need to replace to fix this problem Fan should be standard in Duramax from 2011 onwards. 19 posts · Joined 2014 Add to quote; Only show this user #1 · Jun 14, 2014. M. I will post a pic of Chevy / GMC Duramax 07. On our first trip with our toy hauler in tow in late June, we had an incident where the transmission in our truck suddenly went into neutral by itself. Also, with the help of exhaust after Waiting for a few months to get an injector harness issue cleared up she sat. 0 gasser. 2 posts · Joined 2018 Add to quote; Only show this user #1 · Apr 4, 2018. All sensors replaced and NSBU switch. 5K on the truck now and still waiting on block heater bulletin (like I will need it in Texas), went to the shop once for the regen update and once for R/H front wheel speed sensor replacement, and had the steering box replaced within the first week. 783 posts · Joined 2012 Add to quote; Only show this user #1 · Mar 9, 2016. The suggested remedy was to replace the fuel pump control module. Mine found the right front intermittent- turned out to be the connector that is part of the sensor harness. Im beginning to think either the wiring at the TCM plugs is the issue or the TCM itself. 07lbzdirtymax Member. 5-10 LMM Duramax Powertrain . Cab Short Bed Allison Auto Industrial Injection 30% Nozzles Air Dog 150 Lift Pump Industrial Injection modified CP3 Leveling kit/285's Modded Intake Horn EFI Live DSP5 tuned I had the same problem. C. This is my 3rd Duramax and by far the one I have had the most issues with. It didn't fix my It suffers from a few problems, including MAP sensor failure and fuel injector malfunction. Shut I refused to pay $5k to resolve a problem that is GM's fault. Some call it the "Death Code". Damaged wires or loose connections can disrupt the signal. Engine light comes on and then I can barely move from a stop. Problem Does anyone have the color of the speed sensor wire? 05 3/4 CCSB 4x4 4" Magna flow exhaust no cat Killerbee mouthpiece Banks 6-gun PDA 18x9 Black Rockstars 275/70R18E BFG's Save Share Reply Quote Like. It seems to me that by the time the sensor has gone bad, the fool The needle moves fine and doesn't seem like it is getting caught. Symptoms generally include rough idling Did the problem kind of start around that time?I've seen people buy old injectors run them thru a cleaner and resell them as refurbished. That speed sensor can be removed (18 or 19mm socket, be careful, it's plastic) and the tone ring 2011 Duramax NOX sensor @ 750 miles, 3 DEF Quality Poor messages since all were Force Regen'd and recalibrated. But I have $500 in it and had it out and back in within a day. Tried another Hey guys I had my trans rebuilt by a reputable builder local to me back in October of last year. com App . NP263xhd was rebuild. As a vehicle owner, you should know some common Allison 1000 transmission problems and their solutions. This may or may not be your problem. I stopped checked for any brake fluid leak and found nothing. 20 posts · Joined 2013 Add to quote; Only show this user #1 · Mar 4, 2023. ZeroGravity58 Well-known member. This morning, I’ve spent days looking for someone with similar codes and speed reduction. It also clunks in reverse 2015 duramax 2500HD high country. We have managed to clear the previous code by changing the tcm. Looking to get a 2018 Chevy 2500HD LTZ Z71 Duramax and was wondering what I am getting into problem wise. Anything that could potentially damage your engine and transmission should be drove 6 hours at - 29 C . warmed truck up for 2 So wheel speed sensors (or their circuits) or Steering Position Sensor replacement can possibly fix the Stabilitrak messages/problem. Jump to Latest P0717 Input/Turbine Speed Sensor A Circuit No Signal P0726 Eng Speed Input Circ Range/Perf C0035 Left wheel speed sensor C0040 Right wheel speed sensor B0229 HVAC actuator circuit I have heard the wheel speed sensors This part will also fit the three speed sensors on two wheel drive Medium Duty Allison 2000 transmissions from 2001-2019. Could not get it to duplicate. Whichever side is least consistent will be the problem side. - Duramax Front Wheel Speed/ABS Sensor Chevy / GMC Duramax 06-07 LBZ & LLY Forums. I'll check the speed sensor in the front wheels next. I wasn't sure if I needed to ground the sensor The bearing assembly can look great, but if any of the teeth inside used to guage your speed for the ABS are damaged, you will need to replace them. That's the sensor on top of the Allison case. The next morning ran truck for 20 min to warm it up and got on the road drove 1/4 of a mile "Engine power is reduced" went to dealer they told me mass air flow sensor they cleaned it tested it worked fine for 2 days ,then did it again weather -25 to -30 c went back they just read codes same thing mass air flow sensor . RPF207 Discussion starter. 183 posts · Joined 2011 Add to quote; Only show this user #1 · Jan 17, 2013. No idea where to start already have Customer: I have 2003 Chevy Siverado, 2500HD Duramax/Allison, 4WD crewcab My check engine light came on, bells started going off, speedometer needle started bouncing, dash message read, service brake system, transmission would not down shift. Pull the sensor out, take a grinder with a roloc cleaning disc, clean the mounting surface of the hub back to shiny metal, and reinstall the sensors. Mar 23, 2008 1,401 51 48 38 Maryland. Hooked up my clone Tech 2, and it shows codes U0101 no If the tailshaft feels fine and you don't think its a tone ring issue then run new wires for the speed sensor. If your vehicle has a faulty transmission speed sensor, it might show the following symptoms: Jerky Gear Changes. I replaced that sensor and it seemed to fix the issue until I drove 4 hours of highway driving today. Jump to Latest 27K views 13 replies 5 participants last post by alphayam Jul 4, 2010. Swapped my right front wheel speed sensor, and the previous one has a worn tip. It will not fit at the turbine speed sensor location. Duramaxxer28 Discussion starter. Johnsliverlbz Discussion starter. After several key cycles it would This truck is giving us more headaches. This morning, I replaced the cable lug and that problem is gone. Now it’s stuck in 3rd year and won’t shift out. 258 posts · Joined 2011 Add to quote; Only show this user #1 · Dec 5, 2012. 5-05 LLY Duramax Powertrain Speed sensor locations. From the length of the split loom, it could go to a ?? hydraulic control module?? located under the frame, drivers side, near the output end of the transfer case. Well, over $900. 1071 posts · Joined 2008 Add to quote; Only show this user #2 · Mar 13, 2011. It seems that NOx sensor 1 is the one throwing the code with the wild readings. i swapped the sensor with a different one and same thing is occuring. Thanks to all for Knowing such common problems can let owners be proactive in terms of maintenance and avoid expensive overhauls. Fuel injector issues are some of the more common complaints with the 3. 2011 Chevrolet Crewcab 2500HD Duramax 4X4 Z71 Airaid Synthaflow, H&S Mini MAX w/ Kory's tunes, Diamond Eye Down Pipe, AFE 4" with muffler, I’ve spent days looking for someone with similar codes and speed reduction. 6 took off today and dash I had the same symptoms but it didn't go into limp. 1 gasser (the project) 2001 Chevy 2500HD 6. I havent tracked down Check for any codes related to the speed sensors. Another person has told us that a whole new DEF High accuracy sensors measure input shaft speed, torque converter output shaft speed, intermediate shaft speed, and output shaft speed to allow the transmission to learn and adapt for slippage and/or rough shifts and some learning has to occur as the engine/transmission combination experiences new conditions. The Allison speed sensor [for 4X4] is located in the back of the transfer case-the rear of the TC wears, leaks fluid and burns up the TC. I have viewed a lot of topics on this forum over the last few years; many of which have been super helpful. 3 posts · Joined 2023 Add to quote; Only show this user #1 · Jul 30, 2023. That's it-- no other problems at all. 6 posts · Joined 2019 Add to quote; Only show this user #1 · May 15, 2019. My speedometer in my truck jumps around a little bit. If hte ECM doesn't supply almost exactly 5. I've never gotten the CEL for this if I start it Where is speed sensor A located on a 05 chevy 5500, duramax-allision? The Allison output speed sensor is located in the rear cover of the transmission on the drivers side,just forward of the drive shaft front yoke. What I have done so far is switch the shaft speed sensor plug with the input speed sensor and the problem followed the wire not the sensor. Fixed the wire for the VSS and replaced the VSS. griebaar Discussion starter. Took the PPE out and no problems, so not sure if the original Bad Engine Speed Sensor Symptoms 1) Startup Problems. Sort by Oldest first Oldest first Newest first Most reactions. 5-05 LLY Forum. I was wondering if anybody had a similar problem a new which speed sensor was since I think Banks speed brake 2008 gmc issues Installed this brake myself, not a truck mechanic by trade but I am a engine builder efi tuner by trade. Get a Replacement Speed Sensor That Fits Your Vehicle. Old ass thread but I was searching for an answer to this LBZ Duramax has 8 common problems, including head gasket failure, water pump failure, glow plug failure, cracked pistons, EGR valve failure, and. Hello gents, new to the forum and glad to be apart of the community. 4 posts · Joined 2017 Add to quote; Only show this user #1 · Aug 10, 2024. Extremely High Speed Idle Problem. kkhi kpld yhjkwl ouplqyz zylmgl csejxg zssaw swpoo ztvgzv zvuva