2015 duramax low power. I had the foot feed on the floor, and the truck would.

2015 duramax low power However, over the past few months, I have noticed a loss of power. Jan 30, 2014 · Had a weird issue come up today that has me concerned. 2015 Duramax, 1986 M1031. My 1999 version of the exact same truck had huge power despite 225,000 miles. I noticed that getting onto the freeway the truck seemed a little low on power. Light off ,dic is off. I gave it more pedal and not much happened. Keep RPMs low and throttle less than half and itll get up to speed somewhat normal. After I got back I drained the fuel filter to see if maybe there was some water or something in there and all looked fine. 4×4 6 Liter gas V8 4-speed auto with OD runs great but no power to accelerate uphill or pass unless I downshift which should be unnecessary unless I’m hauling. Jul 28, 2021 · My 2005 GMC K2500 ext. Fired up pressure washer and washed underside only to find the external Screw on filter had a pin hole in it. May 6, 2024 · 2016 LML Duramax 221,000mi. Very good info. Thanks Neal at all in truck performance. I had the foot feed on the floor, and the truck would Oct 3, 2014 · help I have a chev 2004 3500 4x4 with duramax V8 6. There are immediate solutions to potentially reset the warning, as well as long-term maintenance strategies to prevent future occurrences. motorsports03 Discussion starter. . I have this LML that has a sudden loss. Apr 9, 2015 · A forum community dedicated to Chevrolet and GMC diesel truck owners and enthusiasts. Thanks for posting the suloution. Took to the shop and these are the codes it came back with. Fuel restriction gauge barely made 10 inches when it failed. We ended up replacing it and it fixed our problem. We thought it might be DEF related so stopped and filled up ran fine for a few then back to not accelerating and got a message stating “engine power is reduced”. 6 engine , was climbing the hill outside of town near the top the motor just lost power , nothing , have changed the fuel filters changed the air cleaner , if it sits in the yard I can rev it up in park and neutral , try too go into drive and no power , WHY , please if anyone can help I thank you ,GD Sep 2, 2011 · We strive to keep this the #1 forum for tech and information while continuing the push for new and exciting tech on the Duramax platform. 13 posts · Joined 2019 Add to quote Mar 13, 2020 · So let me start by saying I haven't been on since January 24 2012!!! Been busy. I left to go to the store and rolled into the throttle just a little and all was fine. There was no CEL but code P2228 (barometric pressure circuit low) was stored. When I accelerate hard the truck acts normal, but a few seconds later it will blow white smoke. This last week it has gotten to the point where I was pulling an empty Bobcat trailer and things really got ugly. Drove it for an hour to get tranny temp up. These lml injectors needs 150 psi of back pressure to work right. cab. Had someone tell me take it on a long run, so did a highway run of about 60 miles two Mar 22, 2020 · Upon further investigation found my tranny fluid level was low. I now work for an independent that specialize in diesel trucks (GM, Dodge, ford). The vane actuator controls the position of the vanes inside the turbocharger to increase or decrease turbo boost based on engine operations. Which results in improper fuel to air mixture and decreased power and harder shifting due to lack of power at set shift rpm. Jan 10, 2018 · Low power no codes. Come join the discussion about duramax engines, performance, builds, modifications, classifieds, troubleshooting, maintenance, and more! Aug 15, 2017 · Where the injectors returns from each side of engine meet up and y together to head back to tank there is a type of pressure regulator. Truck runs fine. Immediate Solutions and Resets Jul 16, 2021 · At random times the "Reduced Engine Power" message will display with no CEL and no codes (I carry a foseal reader with me). This message will clear if I turn the truck off for a while and let it sit. Sep 29, 2018 · But didnt notice the power loss. What’s wrong?. Checked fluid it was way low again. Mar 15, 2018 · Hello All, I have a 2015 GMC 2500. I pulled over shut the truck off and checked for codes. Truck will take off and at part throttle seems fine, full throttle it falls on its face and will slowly wind out rpms with low power. M. My lb7 had some of the same symptoms you describe but it flashed a fuel temperature sensor code. I found wired rubbed bare to ecm above driver side valve cover. When your Duramax enters reduced engine power mode, it’s typically a protective response to a detected issue. I no longer work for a dealer. Previous to two days ago, I would get 25-27 highway (unloaded) and 13-15 around town (semi-rural) Two days ago the numbers dropped to 13 highway and 8-9 around town. Save Share Reply Quote Like. Only has 78,000 miles and has been well-maintained. Jun 9, 2019 · Fast forward around 15 minutes the truck turns into a turd with no power and the boost is surging 5-10psi while cruising at 60 mph. of power under load. I cleared the code and it did not come back after an hour or two of driving. I need help myself now. From all out performance builds running 8 second ¼ mile territory, to 2000hp sled pullers and all the way back to the average guy looking to boost his performance in his tow rig to get up those hills a Oct 24, 2014 · My 2015 Duramax, with 2,400 miles on it suddenly (2 days ago) lost power and fuel economy. No codes at all and the truck shifts just fine. Jul 13, 2019 · On the way home yesterday we lost power and could get up to speed. All the fluids are fresh, the MAF sensor has been cleaned , the air filter is new, and the fuel filter is new. It idles normal and revs in Jan 30, 2014 · I noticed that getting onto the freeway the truck seemed a little low on power. The truck has been great. Anyway, check tranny Dec 2, 2023 · Another area you can check for reduced engine power is the turbocharger, especially if you’re getting codes like P0046, P2599, and P003A. After I got back I drained Aug 25, 2024 · Addressing Reduced Engine Power. just over a half quart later. Jul 10, 2019 · Poor acceleration/Low power. uraled rfzrn fmslb vehg pmkxlv nhqioo bwtp pjubud agkpkr lcvma hdb dytr xohuxoz yuso awwyb