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1-19 of 32 Results
  1. 911 Problems Forum
    Posting for my father trying to get an idea if anyone else has experienced this. We have a 2002 chevy duramax and lately it has been going into limp mode when tow/haul is on and then when we plug into the computer it throws random codes, and there not always the same codes. We think it might be...
  2. 2020+ LM2 Duramax Powertrain
    My 2021 Duramax with 20K miles randomly gives me the "DEF tank empty" and threatens to reduce my speed. It usually clears itself after a few miles but did go into limp mode once. On that occasion I had the codes cleared and it was fine after a few miles. We are planning a trip to Alaska and...
  3. L5P TSB (service bulletins, recalls, updates)
    So I bought a used 2017 Chevy HC 6.6L Duramax a few months ago in Oct. Truck has ran great with no issues until about 3wk ago and I noticed a few times that my truck would almost "jump" into gear. I just drove my truck from Texas to Oregon and now the truck is having more issues. More...
  4. General Discussion
    I’m “almost” at a loss. truck info : 2011 Sierra Denali 2500 edge tuned and dpf deleted. location : MN Snowy and cold Replaced: transmission filters, NSBU switch all the stories short: Hooked up boss v plow. Plowed twice. Second time out, went in to limp mode sporadically. Pulled codes p0700...
  5. 11-16 LML Duramax Powertrain
    The other day, my truck threw a code for a bad NOx sensor #1. Triggered the "Service Exhaust Fluid System..." Countdown to limp mode warning on the dash as well. Cleared the codes, but the one for the sensor came right back immediately. Typical.... Ended up replacing the sensor for a nice...
  6. Gauges, Electronics and Wiring.
    Hi I'm new to the diesel community and just bought a 2018 Denali HD Duramax 11 days ago. To the best of my knowledge no one prior to my ownership has done anything to the motor, transmission or exhaust. Yesterday I was driving normally when every light possible came on. 4wd fault, ABS fault...
  7. 11-16 LML Duramax Powertrain
    I have searched and not found anything that helps my issue specifically. I have 2013 chevy 2500 LML, full delete with efi live from PPEI and upgraded TCM from Dans Diesel. Truck has 200K on it now and has started acting up intermittently with service stabilitrak/traction control and going into...
  8. General Discussion
    My 2006 lbz with 284k miles on it went into limp mode after driving it a little aggressive. Code p0087 (low fuel pressure) we hooked my cousins scanner up to it after limp mode reset and drove it pretty hard and it had the correct amount of psi and didn’t go into limp mode. This has happened...
  9. 11-16 LML Duramax Powertrain
    I have a 2014 Duramax. Got a code P0106 for MAP sensor issues, bought one from O'Reilly's fixed it for two days, got a OEM one from Chevy and still have the P0106 Code and i have a P0108 Code now. Gives me a message for Engine power reduced. Truck is getting less MPG now and does have the...
  10. 01-04.5 LB7 Duramax Powertrain
    Hey all! I hope this is the correct place to post this but I’m having more issues with the truck. Got the transmission rebuilt and all was good for a few months until I crack the extension housing. Got it back from the shop over the winter and everything was good and back to normal except a tad...
  11. 01-04.5 LB7 Duramax Powertrain
    Hey guys, yesterday i was headin to work in my 02 duramax and my truck revved up and i think it came outta 5th gear and into 4th and the service engine light came on. I was going about 65 on cruise, and i hit the gas to accelerate to go around this car and thats when it happened. Any ideas? to...
  12. Transmission Shop
    Hey there! First time posting but really need some help. 3 days ago I changed my tranny fluid, did lots of small driving and stuff around town, yesterday had to leave town for work and got 30min outside my home town and truck shifted hard into 4th no other gears. Well, obviously limp mode but I...
  13. 911 Problems Forum
    Im new this seemed like the best place to post as I've been tackling it for months. I'll try to keep it short Bassicly trucks at 620xxxkm shes beat the fans owned it since 05 n I'm trying to do it cheapest way possible Bought "new" trans (330xxx) , just did trans, still in limp...I RODE IN THE...
  14. 07.5-10 LMM Duramax Powertrain
    I've been chasing the Reduced Engine Power ghost with no codes for about 2 weeks now. I've dug through all of the forum posts on several websites as well as the LMM facebook pages so I won't bore you with all of what they've said. My truck specifically, after the key goes into the ON position...
  15. 01-04.5 LB7 Duramax Powertrain
    Ok im finally having problems and they are turning into big ones. first ill start off with what i have. 2003 2500 LB7, slightly modded with the edge programmer and a 5 inch exhaust Driving habbits: when i first got the truck three years ago i did alot of hard off roading. for the past year...
  16. Transmission Shop
    I just got done putting another used motor in my 2003 duramax i took it for a short test drive ran fine a few mins later i went for another and it went into limp mode at 45mph, and now after i cleared all DTCs still as soon as i put it into drive it locks itself into limp mode it will go into...
  17. Transmission Shop
    Need some assistance here from the Allison experts here. I'll start with what the truck is doing/codes thrown and provide some back-story on things I’ve changed before this started to happen. Truck - '02 Silverado 3500, 4x4. Everything is stock. I do have aftermarket MBRP exhaust, Banks...
  18. 911 Problems Forum
    My truck keeps going into limp mode and throwing the p1093 code I installed the ppe race valve and changed my fuel filter and I have no idea what else to check any help would be great
  19. 01-04.5 LB7 Duramax Powertrain
    So0o i tryed putting my tuner on level 5 today just to see wut the difference was. i usually leave it on 90hp cause i dont wanna break nutting. Long story short i was on it at bout 90 i have a 110 cut off point and right at 97 she completly cuts out. i coast back to a gas station when the light...
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