Duramax acceleration problems

1 post · Joined 2006. #1 · Jul 6, 2006. I have a stock early 2004 duramax with the allison automatic. Over the past few weeks I have been having sporatic problems with the transmission. Under heavy acceleration (pedal to the boards) the engine hits the shift point rpm but the transmission will not shift. I have to relase the throttle a little ...

Duramax acceleration problems. 3.0 Duramax common problems Starting problems. This may be the most prevalent issue in these engines. Basically, the engine’s starter motor gets cranking as soon as you try to switch on the engine. However, it keeps on cranking and the engine never really starts. Sometimes, the engine does start when you try to crank it a second time.

You buy a diesel because it makes 400 rwhp but when you push on the throttle from a stop the truck is slow to move - the pedal feels... dead. It's not until ...

In short, The most commonly reported problems that the L5P Duramax has are the Allison 1000 transmission, MAP sensor failure as well as fuel injector failure. …Sep 9, 2015 · 2005 CC SB LLY-Air dog 165 Factory filter deleted, S366 Turbo, 3IN Intercooler pipes, LB7 up pipe/EGR delete, Built trans, DSP5 switch, PPE Fuel press/EGT/Boost guages, 5 In exhaust, Big Chevy Traction Bars, HD Tie-Rod sleeves, Stainless Center Link, ARP Headstuds, Smoked Recon tail lights & brake lights, Smoked headlights/fogs/cab lights-My ATV hauler This huge exodus shows no signs of slowing down any time soon....VNO A Real Money Pro member requested I revisit what I first dubbed 'The Great Exodus' way back in the first half o...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...Once you’ve identified the problem, it’s usually a straightforward repair job. 08. Fuel Pump Failures. If your engine sputters at high speeds or loses power during acceleration, a failing fuel pump could be your culprit. Fuel pump issues can lead to poor performance and can even leave you stranded on the road.Jan 3, 2021 · This video is an example of how we diagnose diesel drivability issues without changing a single part or guessing what the fault is. In this example the truc...

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.Are you looking to improve your English skills? Whether you are a beginner or already have some knowledge of the language, Burlington English is here to help you accelerate your En...An improperly routed cooling fan wiring harness shorted to ground against the alternator pulley, sending a false erratic cooling fan clutch signal to the ECM...If the truck can do 20 mpg empty, it burns 1.5 gal just covering the 30 miles, plus the extra 1 gallon going to the 9th injector. You end up using 2.5 gal /30 miles or about 12 mpg. These 2024's seem to be using closer to 2 gal/30 miles, plus the extra for regen makes 3 gal/30miles or 10mpg during regen.If the truck can do 20 mpg empty, it burns 1.5 gal just covering the 30 miles, plus the extra 1 gallon going to the 9th injector. You end up using 2.5 gal /30 miles or about 12 mpg. These 2024's seem to be using closer to 2 gal/30 miles, plus the extra for regen makes 3 gal/30miles or 10mpg during regen.I went out to drive it and at first I had to put my foot all the way to the floor just to get to 1800 rpm. It seemed to get better as I kept driving (would go over 1800 rpm) but it still seemed rather sluggish. I could definitely hear an air leak somewhere where it sounded like it was sucking air.Jan 12, 2012 · 85 posts · Joined 2008. #1 · Jan 12, 2012 (Edited) My 2008 GMC Sierra D/A has started making a noise I never heard before when I'm Accelerating, I just had it in for oil change, fuel filter change, and alignment. This noise had started earlier but now it's more often, I don't think it is the Turbo. My gas mileage has also dropped about 2 ...

I will walk you through the 10 most common 2.8 Duramax problems with solutions. 1. Transmission Failure. 2.8L Duramax has a 6L50 transmission system. The same transmission system is used in Camaro V6, Holden Chevrolet Lumina, Chevrolet Caprice, Cadillac SLS, SRX, STS, and CTS engines. It means GM has used a car transmission …A 2011, 2015, and 2017 they are not duallys with no problem like this one. The new 2018 seems to intermittently when driving and pushing on the accelerator to intermittently hesitate like it is staving for fuel almost like a slight bucking. It started at around 300 miles and is still happening, but it is so intermittent it only happens 2 times ... I will walk you through the 10 most common 2.8 Duramax problems with solutions. 1. Transmission Failure. 2.8L Duramax has a 6L50 transmission system. The same transmission system is used in Camaro V6, Holden Chevrolet Lumina, Chevrolet Caprice, Cadillac SLS, SRX, STS, and CTS engines. It means GM has used a car transmission system in mid-size ... Aug 5, 2020 · Water Pump Failure. Fuel Filter Housing O-ring Leaks. Blown Head Gasket. Overheating (fan clutch problems, radiator gunk) In addition to the above common engine problems, there are also a few worthwhile to mention problems that affect high horsepower LB7’s: Crankshafts + connecting rods break at high hp. 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.

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2018 L5P 3500 stumbles. New 3500 Denali bought new about 2 months ago. It has 1800 miles on it. while getting on the freeway at 35-45 mph relatively light acceleration truck stumbles I cant tell if its engine or trans caused. Kind of feels like it runs out of fuel or it doesn't know what gear to be in.2012 6.6 DEF continuous problems. Hi all, I'm here for help. I have a 2012 GMC 2500 6.6 I have 115,000 miles on it and over the past 50,000 miles I've had to have the DEF injector replaced and the entire DEF tank replaced. Last night I got the "poor" DEF fluid quality message with speed restrictions in 99 miles.Oct 2, 2009 · 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 more 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 ...Flush the cooling system. Add water to the system. Keep the engine idle and slowly add a head gasket sealer to the radiator. (There are many types of head gasket sealers available in the market. Keep the engine idle for 50 to 55 minutes. Install the radiator cap. Drain the cooling system completely.

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 ...injector noise again. I have a 2003 chev 2500hd duramax with 263000 miles on it. It all started about 50000 miles ago, the injectors started making a tapping sound after another 30000 it was alot louder and it started to smoke. 15000 miles later i had all eight injectors replaced, for the first 2 weeks engine was real quiet, no tapping at all ...The Duramax is famous for rubbed through wire issues.. Pump up your fuel primer on the fuel filter head and let it sit (preferably overnight ). Recheck it in the morning and if the primer button is soft, start by rebuilding your fuel filter head or replacing it. Go through all fuel lines.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.You buy a diesel because it makes 400 rwhp but when you push on the throttle from a stop the truck is slow to move - the pedal feels... dead. It's not until ... 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 ... Once you’ve identified the problem, it’s usually a straightforward repair job. 08. Fuel Pump Failures. If your engine sputters at high speeds or loses power during acceleration, a failing fuel pump could be your culprit. Fuel pump issues can lead to poor performance and can even leave you stranded on the road.Learn how to prepare for a WordPress migration and discover how to complete the process manually or with an automated plugin. Trusted by business builders worldwide, the HubSpot Bl...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 ...Common problems with Duramax diesel engines include air in the fuel lines, fuel starvation, water pump failure, overheating, injector failure and harness chafing. Some of these iss...

Boosted Performance is now LIVE! L5P Performance Parts: https://boostedperformance.com/duramax-l5pIn this video, Jake covers GM’s L5P Duramax engine. Could i...

Low rail pressure is one of the most common cause of a limp mode in the 2001 – 2010 6.6 Duramax. DTC codes P0087, P0093 or P1093 may set due to low rail pressure. Low rail pressure could be caused by a restricted fuel filter, air in the fuel, a bad pressure relief valve, excessive return fuel from the injectors or a worn CP3 pump.LML Doesn't want to downshift on acceleration. New to me 2015 LML. Feel stock power level wise but if you mat it it doesn't usually downshift it just slowly accelerates. Coming from an 08 lmm and if you mat it it will downshift and the rpms jump to 2500-3k and it goes. This new LML won't do that, it hasn't been an issue really but today …639 posts · Joined 2011. #2 · Dec 29, 2011. Smoke means your either getting to much fuel or not enough air. So with that being said I would start easy and see if you have a boost leak. Be sure you hot a clean air filter, and fuel filter. After that if you don't find anything I would move to the injection area. Maybe have you injectors checked.Oct 26, 2018 · 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 ... Boosted Performance is now LIVE! L5P Performance Parts: https://boostedperformance.com/duramax-l5pIn this video, Jake covers GM’s L5P Duramax engine. Could i...Once you’ve identified the problem, it’s usually a straightforward repair job. 08. Fuel Pump Failures. If your engine sputters at high speeds or loses power during acceleration, a failing fuel pump could be your culprit. Fuel pump issues can lead to poor performance and can even leave you stranded on the road.3.0 cold surge. I have a 2020 2LT Silverado that began having cold weather surging issues last Dec. I would drive down the street 1/2 miles from home and at the intersection the engine would surge to 1000 rpm and then back to 400 repeatedly. However once the engine was at operating temps it stopped. Local GM dealer was able to reproduce the ...It may be possible that the injection pump is failing and is causing the low power or the bog down. There are also some concerns with the fuel feed line from the fuel tank becoming pinched or collapsing and this causes a lack of fuel.These all need to be checked and tested to see if any of these are at fault.

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LB7 smokes black smoke on light acceleration! Hello everyone, I have a 2001 duramax that I got earlier this year and it has been running great untill the past 2 weeks. It gradually started smoking on light acceleration more and more. On full throttle it smokes like train. When I got it about 4 months ago it could floor it and it wouldnt smoke ...Apr 12, 2017 ... Did u check your injectors rating and I think I'm having that same problem with mine mine are in spec and fuel mileage is getting bad after ...The 4th injector is causing a problem for these high mileage 2017+ Duramax 6.6L trucks. On this Diesel Insights, Nick gives you a good tip that costs nothing...I’m getting a shudder/stutter when accelerating above 45mph. When I give it throttle above 45mph and it down shifts and puts the RPMs at 2,000, the shudder/stutter … 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 ... 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.Are you looking to improve your English skills? Whether you are a beginner or already have some knowledge of the language, Burlington English is here to help you accelerate your En...3.0 cold surge. I have a 2020 2LT Silverado that began having cold weather surging issues last Dec. I would drive down the street 1/2 miles from home and at the intersection the engine would surge to 1000 rpm and then back to 400 repeatedly. However once the engine was at operating temps it stopped. Local GM dealer was able to reproduce the ...2012 6.6 DEF continuous problems. Hi all, I'm here for help. I have a 2012 GMC 2500 6.6 I have 115,000 miles on it and over the past 50,000 miles I've had to have the DEF injector replaced and the entire DEF tank replaced. Last night I got the "poor" DEF fluid quality message with speed restrictions in 99 miles. ….

the Chevy 2500 6.6L Duramax Diesel L5P number 1 issues/problem is the MAP sensor getting clogged and causing your Duramax diesel engine to run poorly and mos...Jun 19, 2023 · Remove thermostat. Flush the cooling system. Add water to the system. Keep the engine idle and slowly add a head gasket sealer to the radiator. (There are many types of head gasket sealers available in the market. Keep the engine idle for 50 to 55 minutes. Install the radiator cap. Oct 3, 2014 · 1 post · Joined 2014. #1 · Oct 3, 2014. 01 LB7, only non stock is air intake.I was pulling an average size boat when I got a check engine light and lost power. I could ease it up to 50 mph but if I pushed it then back down to no power. Pulled into a parts store,changed fuel filter and they analyzed it. Said it was the fuel pressure regulator. Jan 14, 2020 · More LM2 Duramax 3.0 Issues. I bought a LM2 duramax recently, a black RST. I really do like it, but it has problems. First problem: After getting off the highway and stopping at a light, exhaust fumes flood the truck through the air vents. I thought maybe it was just one of those new car smells, and I thought it might go away, but nope. Balance rates are also back and exactly where prior to this hiccup. 1.Fuel Filter Replaced/Filled with Diesel Kleen. 2. Gonna monitor everything to see if theres an underlying issue but I suspect bad fuel. Michael. 08 LMM. Leveled, Deleted, and Tinted, 5" Flo-Pro SS, EFI and Fass 150 Build. Like.Mid to soft acceleration it total doesn’t engage in 8 or 9th gear. Feels like a defuel issue. Everyone tellls me it’s a time problem l but no real solution. Chevy1925 don't know sh!t about IFS. Staff member. Oct 21, 2009 ... Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can ...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.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 ...There are 07 most common signs of bad throttle position sensor. Acceleration issues like hesitant to accelerate, accelerate itself, lack of acceleration power. Check engine warning light pops up on the dashboard. Fuel efficiency is low or high than standard. Throttle valve of the engine misleads. Duramax acceleration problems, [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1]