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1-13 of 13 Results
  1. Towing & Hauling
    2006 2500 towing 5500 lbs through North Carolina mountains let me move 750 miles before getting off the interstate to what seems to have gone into limp mode. Multiple random codes when scanned at advanced auto. P0087 code confirmed from a different scanner and no other codes except my glow plug...
  2. 2017-19 GM T-K2 Platform Powertrain
    So I have 3 glow plug related permanent codes and no warning indication on the dash. Does anyone have any idea why? Truck is acting totally normal, is there any chance the previous owner changed some of the glow plugs and never did a glow plug relearn and therefor I have un-clearable permanent...
  3. 911 Problems Forum
    Driving from California back to Georgia outside of Arizona the stabilitrak message came up with ABS light and service trailer brake. I'm pulling a 2500 pound trailer with a 2018 3500 HD. Stuck over night and next day, no notifications once I started going. 500 miles down the road, emissions...
  4. General Discussion
    I have a 2015 3/4 ton Silverado. When the fuel level drops below around 3/4 tank my check engine light come on. When I fill the tank and drive a little bit, like home from the gas station, the next time I start my truck the light is off. It stays off until I get below 3/4 tank again. It...
  5. 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...
  6. General Discussion
    Hi all, this is my first post on your forum. I bought a new 2021 Sierra 2500HD today. The truck had 31 miles on it when I purchased it. On my way home the truck now has 50 miles and a check engine light came on that won't go off. The dealer told me to open and close the door and try to restart...
  7. 911 Problems Forum
    Installed s&b CAI on 2021 chevy silverado 2500hd 6.6 Duramax. Disabled air filter as stated in message bar and has thrown a po26c code twice. Any1 else experience this issue or know how to get it corrected? Installed with 750 miles on truck and came on about 800 miles, cleared it and now its...
  8. General Discussion
    Hello everyone, i was driving home this morning from work, and i was going up a decently steep hill. i was accelerating pretty hard before i heard a noise and then my truck kinda jerked a little, then my rpms dropped, then started increasing but my transmission wasn’t shifting right away, then i...
  9. 2001 - 2007 (GMT800) Non Powertrain
    I have a 2006 duramax.I failed emissions cause my check engine light wouldn’t come on when they turned my key to the on spot. Pulled my cluster out to see if the bulb was there and it was all my other lights turn on. I thought I could change the bulb out but it looks like it can’t be replaced...
  10. 04.5-05 LLY Duramax Powertrain
    Hey all, check engine light came on 4 days ago, pulled the code (and cleared it) yesterday and it was P0670. Today, it came back on. I have been reading and want to pick your brains. Who has had this problem and how did you make it go away? I could replace the module if I am 100% sure it...
  11. General Discussion
    I have a 2007.5 with an LMM engine. My check engine light came on (out of the blue) and when I try to remote start, it starts and shuts off right away. It seems to run okay except it's a bit quiet and I can't really tell if I have any power loss. Other than a lift and 35's, the truck is totally...
  12. 911 Problems Forum
    I purchased a used 2006 lly Dmax and shortly after I kept throwing a code for "Turbo Charger Position Not Recognized". I took it to the dealer and they replaced the turbo charger sensor and said that is where the problem was. Well I got the same code about 2 weeks later. After spending about a...
  13. 911 Problems Forum
    (TDFDiesel) Edit: Here is a free resource shared by a member. It appears to offer DTC codes by manufacturer with further documentation for Troubleshooting. My initial reviews looked like it was an extensive database. Diagnostic Trouble Code (DTC) Definition, Causes and Diagnosis I did not...
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