Duramax acceleration problems.

Although the Duramax LMM engine was way ahead of its time, there are 10 common problems with it, including low fuel rail pressure, winter starting issues, DPF problems, water pump issues, gasket failure, piston failure, etc. Let’s discuss these problems and possible solutions. 01. Low Fuel Rail Pressure. Fuel filter problems cause low fuel ... Pull the shaft out and check the U-joints, maybe try a test drive without the shaft if will tell you something. 01 GMC 2500hd ecsb Dmax/Alli. 4" exhaust to 5" single stack,EDGE Insight CTS, EFI Live Moonshine tuned, Suncoast stage IV, Complete Kryptonite front end with PISK , 305/55/R20 Cooper Zeon's on Rockstars. Eaton E-locker.The Accelerator Pedal Position (APP) sensor is made up of 2 sensors that are housed inside one assembly. The Engine Control Module (ECM) supplies a separate 5-volt reference circuit and a low reference circuit for each of the sensors. The 5-volt reference for APP sensor 1 is supplied from the same source in the ECM as the 5-volt reference for ...2024 L5P throttle response issues. I just bought a 2024 GMC 2500HD AT4 w/ Duramax. When leaving a stop light there is a slight shutter on acceleration. Is This normal? Also when coming to a stop slowing to a slow roll (about 5-10 mph) I step on the accelerator and the truck takes a solid 5-10 seconds to start responding.2016 LML intermittent power loss and recovery. Just did a 3K trip on my 2016 over 3 days. Once each day for about 5 minutes while running at interstate speeds I had a power loss with excessive black smoke. Each time it lasted about 5 minutes and then was back to full power with no indications ever of any problems.

As a reliable and fuel-efficient engine, the 3.0 Duramax offers a great combination of performance and efficiency. However, there are 5 minor and 1 major problem with the engine, including a starting issue, bad fuel injectors, and a faulty oil pump. The 06 problems with their symptoms and solutions are: 1. Starting Problem.

Many customers have upgraded from their old pre-emissions Duramax to a new LML Duramax and found there are a few changes besides just the looks. The new LML made and astonishing 395 RWHP and 731 ft/lbs of torque on our dyno when tested stock. Which is impressive by itself but you will probably notice your old Duramax feels quicker.In today’s fast-paced world, many individuals are seeking ways to advance their careers and education without sacrificing valuable time. One option that has gained popularity in re...

Sound shows up on video at about 23 seconds. Ha ha I’m get that noise in the morning at around 15-20mph then it goes away never cared about it sounds like something rubbing a wire or something from the center counsel. The other thing that gets me temperamental is the Damb passenger seat belt when not flip correctly between the …2003 Chevrolet 2500HD 6.6L LB7 AFE stage 2 cold air intake, Straignt pipe 4" AFE exhaust, New Bosch injectors, High idle switch, Stanadyne fuel manager w/ 5 micron water seperator filter, CAT 2 micron fuel filter, Alliant lift pump, 285 75 16 Toyo M55's, Lund Sunvisor,If the pedal is hard to push -even with the key off-- most likely bit is a pedal issue. You will have to replace the entire unit. A "Limp" will show a "Check Engine" light -- be limited to 2,000 RPM and only have reverse and 3rd gear. Chevy 04.5 LLY, 2X, shell, XDR, MikeL Heavy duty up-grade, 6spd, TransGo, deep pan, de-badged, 65 Gallon ...Same for your fuel filter. If your filter isn't letting enough fuel pass through, your engine isn't going to accelerate the way you need. Trouble starting your engine is another indicator that your fuel filter is clogged. If you've got a full tank of diesel and your engine won't start, there's a good chance your filter may need changing.

Mjrkav. 198 posts · Joined 2017. #6 · Jul 28, 2017. Had mine reflashed a few weeks ago. Pretty well solved the "sudden acceleration" problem. Trans shifts easier from 1st to 2nd. Pedal seems less touchy. Now if we could just solve the CEL code problem, I would be extremely happy!! 2017 Chevy Silverado 3500 L5P.

Pull the shaft out and check the U-joints, maybe try a test drive without the shaft if will tell you something. 01 GMC 2500hd ecsb Dmax/Alli. 4" exhaust to 5" single stack,EDGE Insight CTS, EFI Live Moonshine tuned, Suncoast stage IV, Complete Kryptonite front end with PISK , 305/55/R20 Cooper Zeon's on Rockstars. Eaton E-locker.

In today’s fast-paced world, many individuals are seeking ways to advance their careers and education without sacrificing valuable time. One option that has gained popularity in re...2012 LML Duramax surges and has weak acceleration. I started to have issues when I was suddenly put into limp mode (couldn't go past 1000 rpms). Cleared the codes and it came out of it but with weak acceleration and surging while in gear as seen in the video. I took it back out to video the weak acceleration and it wasn't doing the surging ...19947 posts · Joined 2012. #4 · Aug 17, 2020. Over on the duramax forum there isn't a ton of issues being reported. There are some though. Regen issues, thumping sound from the motor, and a few other smaller things. The fuel pumps don't appear to be an issue on the L5P motors. At least not in the sense the LML trucks were.Issue isn't consistent sometimes it will go a day maybe 2 days no issues. Sometimes it will go 30 to 50 miles then issues occur still no codes. The issue when it happens. Is as follows. The truck sputters when driving at 1500rpm to 2500rpm like poping and sputters. Basically how a truck would sound with mass airflow sensors unplugged.It does'nt make sense that the nox sensor would create such havoc, but it did.. So those of you Duaramax owners that have the vibration like your drive shaft or tires are out balance change the Nox sensor by the turbo.. Problem solved.. Good luck.. 2017 3500 hd L5P. 77cruiser.Many customers have upgraded from their old pre-emissions Duramax to a new LML Duramax and found there are a few changes besides just the looks. The new LML made and astonishing 395 RWHP and 731 ft/lbs of torque on our dyno when tested stock. Which is impressive by itself but you will probably notice your old Duramax feels quicker.Fuel System Problems. Your Duramax relies on a clean and unobstructed fuel supply. Issues with the fuel filter, fuel line, or fuel injectors can cause reduced engine power. A faulty injector can disrupt the fuel mixture, and clogged fuel filters restrict fuel flow, both potentially leading to limp mode activation for protection.

Same problem Hey guys, my LLY has recently been doing the same sluggish acceleration as of recent. Today the truck fell on its face, so i pinned it and then three codes appeared. They were P0401 EGR insufficient flow, P0404 Exhaust Gas Recirculation Open, and P0101 Mass Air Flow Sensor Circuit Range/Performance. Any and all adviced is appreciated.203 posts · Joined 2014. #8 · May 25, 2016. There's a mass airflow sensor. Diesel engines in general don't have a throttle, that's why you don't ever spray MAF cleaner directly on the intake, it can over rev. Same can happen if your turbo compressor seal busts, oil will make its way into the engine and you can't turn the engine off.Aug 2, 2020 · 2016 LML intermittent power loss and recovery. Just did a 3K trip on my 2016 over 3 days. Once each day for about 5 minutes while running at interstate speeds I had a power loss with excessive black smoke. Each time it lasted about 5 minutes and then was back to full power with no indications ever of any problems. Aug 18, 2020 · Overheating (pre-2006) Fuel pressure relief valve. If you would rather consume this content via a video, check out our Chevrolet LLY Duramax Common Problems video below: 1. Bent Rods. While the LLY made competitive performance numbers back in 2004, the engine is certainly not competitive to the modern day diesels. 203 posts · Joined 2014. #8 · May 25, 2016. There's a mass airflow sensor. Diesel engines in general don't have a throttle, that's why you don't ever spray MAF cleaner directly on the intake, it can over rev. Same can happen if your turbo compressor seal busts, oil will make its way into the engine and you can't turn the engine off.Well unfortunately I have the known “chuggling” issue on my 2019 L5P Duramax. The issue has occurred half a dozen times and the truck only has 1,800 miles on it. It always happens in 3rd or 4th gear under light acceleration. It feels like the engine loses fuel for a second causing deceleration, then gets fuel for a second and accelerates ...

By following this step-by-step guide, you can effectively troubleshoot Duramax TPS problems. Remember to address any wiring issues, test the signal voltage, and evaluate TPS performance at different throttle positions. Proper TPS functioning is crucial for smooth acceleration and optimal engine performance. Cleaning The Throttle Body And TPSJul 21, 2022 · Maybe. According to Pickup Truck Talk, the 2022 GMC Sierra 1500 has increasing reports of engine failure and no-stating issues. These problems include the gas-powered engines and the diesel option. The 6.1-liter V8 engine could be facing engine lifter problems. Owners of General Motors V8 engines with Active Fuel Management (AFM) systems aren ...

3. 1. Nov 17, 2022. #1. I just got a 2021 1500 3.0 Duramax with 15k on it. It is the Black Widow. I'm going to make a post about this strange squeal sound I hear under medium acceleration. Sounds like a balloon letting the air out while pinching the flap. IDK, I have had many turbos and this is not the turbo whistle.Leaking transmission lines. Fueling / low fuel pressure. Piston / crankshaft failure. Allison 1000 power limitation. The LMM is an extremely capable engine. Two of these common problems are really cheats by me because there aren’t a lot of common problems on these engines and drivetrains.GM 6.6-Liter Duramax LML: CP4.2 … the Weakest Link. GM says the change from the CP3 pump used in the earlier models allows the LML to run on ASTM grade …Enterprise-focused Alchemist Accelerator is back with another one. Today marks its 27th Demo Day, with more than two dozen companies expected to take the (virtual) stage. Coming in...2012 LML Duramax surges and has weak acceleration. I started to have issues when I was suddenly put into limp mode (couldn't go past 1000 rpms). Cleared the codes and it came out of it but with weak acceleration and surging while in gear as seen in the video. I took it back out to video the weak acceleration and it wasn't doing the surging ...Aug 2, 2020 · 2016 LML intermittent power loss and recovery. Just did a 3K trip on my 2016 over 3 days. Once each day for about 5 minutes while running at interstate speeds I had a power loss with excessive black smoke. Each time it lasted about 5 minutes and then was back to full power with no indications ever of any problems. Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Performance Parts Discussion ... Power loss on acceleration. ... I'm pretty much and a stand still right now although my I was having problems with my shift indicator so I changed the nsbu and ignition switch which fixed that problem but did fix what I think is a fuel issue ...J83. 5030 posts · Joined 2014. #8 · Apr 24, 2014. my truck runs 80 PSI on the highway when warm, it always has. 40-60 idle and 80 idle when cold. been like that for 7 or 8 years that ive owned the truck. everyone ive ever had look at the truck says its fine, i think our trucks run higher oil pressure then the newer ones.Dec 9, 2006 · having a problem with light blue smoke at idle and heavy blue smoke on acceleration with it clearing away at cruse speed some say it is valve guides but upon going to the dealer the claim there are no valve guide seals on the duramax 6.6 and that that problem could be turbo seals anyone with any ideas? this is a 2002 silverado 6.6 LB7. Like.

You may experience several problems with the 3.0 Duramax engine during use. However, I have listed a few common Duramax problems reported by owners. Oil …

Here is our guide to the 7 most common 6.6L LB7 Duramax problems and how to fix them. 1. LB7 Duramax Injectors. The most notorious LB7 Duramax problem is their original injectors. Even GM acknowledged their problems when they corrected the original injector design and issued a 200,000 or 7-year warranty on the updated model.

07 2500HD Classic Black crewcab\SB Duramax LBZ -Diablosport 120HP-Diamond Eye True downpipe-4" straight exhaust from band clamp back-AEM intake with AFE filter and outerwear-PPE EGR Blocker Plate-PPE fuel plug-Edge Insight W\EGT-BD Diesel manifold-Intake resonator bypassed-RCD 6" front, 2" rear blocks, Low profile bumpstops for lower arms.0. 0. Dec 28, 2019. #1. Having a couple issues with my 2013 Duramax 75,000 miles. Show reduced power on the instrument panel and it feels down on power, maybe 75% of normal. But no check engine light. Also the lights dim every 5 seconds or so when at idle, the voltage goes from 14.5v down to 12.9 when this happens.May 20, 2022 · Hesitant acceleration; Low fuel pressure; Power loss; Rough idle; Replacing the high-pressure pump is inevitable. However, you can prolong the pump’s lifespan with good maintenance culture and avoid running on low fuel. 3.0L Duramax Reliability. The crank no start issue is the major problem that has ravaged the 3.0L Duramax. The 07 Duramax Throttle Position Sensor problems can be a headache for truck owners. The symptoms may range from poor acceleration to engine stalling, causing inconvenience and even danger on the road. Being aware of the signs and getting regular maintenance can help prevent these issues from occurring.Hooked up bluetooth scanner and read codes P128E & P0088 (high fuel rail pressure) reset the codes and took it for a ride. Seemed fine, but when I stood on the gas it wouldn't go over about 2900 RPM then check engine light with reduced power mode, and change fuel filter message. Swapped out the filter and took it for a ride with scantool …Maybe. According to Pickup Truck Talk, the 2022 GMC Sierra 1500 has increasing reports of engine failure and no-stating issues. These problems include the gas-powered engines and the diesel option. The 6.1-liter V8 engine could be facing engine lifter problems. Owners of General Motors V8 engines with Active Fuel Management (AFM) …7 Duramax Throttle Position Sensor Problems. A bad TPS can cause various drivability and performance issues in your 07 Duramax truck. Here are the 7 most common problems caused by a faulty throttle position sensor: Acceleration Issue. One of the most evident signs of a bad TPS is sluggish or jerky acceleration.In today’s fast-paced world, many individuals are seeking ways to advance their careers and education without sacrificing valuable time. One option that has gained popularity in re...

2001 GMC Sierra 4x4 crew cab 4WD Duramax diesel engine. Runs & starts fine, and OK in normal driving, even hard acceleration, but when puling heavy load, after 2ndor third hard acceleration, check eng … read moreSome signs of faulty fuel pumps are dirty engine oil, whining noise and poor acceleration. This problem is common for early Duramax models and need to replace the pump to fix the issue. 2. Crank Start Issues. 3.0L Duramax engine gets the most complains due to the crank start problem.2024 L5P throttle response issues. I just bought a 2024 GMC 2500HD AT4 w/ Duramax. When leaving a stop light there is a slight shutter on acceleration. Is This normal? Also when coming to a stop slowing to a slow roll (about 5-10 mph) I step on the accelerator and the truck takes a solid 5-10 seconds to start responding.7 Duramax Throttle Position Sensor Problems. A bad TPS can cause various drivability and performance issues in your 07 Duramax truck. Here are the 7 most common problems caused by a faulty throttle position sensor: Acceleration Issue. One of the most evident signs of a bad TPS is sluggish or jerky acceleration.Instagram:https://instagram. firehouse town centernortheastern university graduate admission decision datesouth bend indiana zipwhite round 314 93 Sep 16, 2021 ... 3.0 Duramax Crank but won't start. This happens on Chevy Silverado, GMC Sierra, Chevy Suburban and Chevy Tahoe that has the 3.0 Duramax.Sep 24, 2020 · Leaking transmission lines. Fueling / low fuel pressure. Piston / crankshaft failure. Allison 1000 power limitation. The LMM is an extremely capable engine. Two of these common problems are really cheats by me because there aren’t a lot of common problems on these engines and drivetrains. cedar key webcam live youtubepo4 compound name Jan 21, 2021 · 1 post · Joined 2022. #10 · Apr 25, 2022. Jburleson said: Hi, just purchased a 2021 At4 3.0 diesel. Less than 300 miles check engine light comes on and dashboard says “ reducing engine power”. Went to dealership. Mechanic thought it was a faulty code reading. They check it , said they found nothing faulty. They didn’t say which code it ... houses for sale in sarasota fl under 150 000 One of the most common lly duramax problems is the injector harness rub, which can cause rough idling or even stall the engine. Another frequent issue is the fuel injectors, and a failing ficm can also cause problems. Improper fuel pressure can lead to hard starts, misfires, and decreased fuel economy. Proper diagnosis is crucial to addressing ...The Accelerator Pedal Position (APP) sensor is made up of 2 sensors that are housed inside one assembly. The Engine Control Module (ECM) supplies a separate 5-volt reference circuit and a low reference circuit for each of the sensors. The 5-volt reference for APP sensor 1 is supplied from the same source in the ECM as the 5-volt reference for ...