Forum Discussion

ceaser_22000's avatar
ceaser_22000
Explorer
Apr 01, 2016

2005 6.6 duramax check engine

I have a 2005 GMC Duramax 6.6 while recently coming home through Virginia and West Virginia on North 77 my check engine light came on after about 3 or 4 good mountain passes. Stop for the evening the next morning the engine light came off pulling through the Flatlands no check engine light I don't have a obd reader any ideas I was pulling a 40 foot fifth wheel approximately 13000 pounds.
Tow Vehicles
  • 45Ricochet's avatar
    45Ricochet
    Explorer
    Apr 02, 2016
    LIKE2BUILD wrote:
    The 2005 Duramax had some issues with overheating due to air restrictions in the intake design. It's possible that under your towing load that air restriction came into play and the engine was running too hot.

    X2
    Common problem with some of them. I have forgotten the name but a company in Utah made a Induction Overhaul Kit, nice aftermarket item to fix it.
    Maybe Larry Barnhart will chime in soon as I believe he has one.
  • corvettekent's avatar
    corvettekent
    Explorer
    Apr 01, 2016
    The one thing that I learned about a Duramax is that to need to be able to read and reset engine codes.
  • KD4UPL's avatar
    KD4UPL
    Explorer
    Apr 01, 2016
    Get Autozone to read the code for free. Then we'll all know.
  • donn0128's avatar
    donn0128
    Explorer II
    Apr 01, 2016
    And Your question is?
    Without reading the stored codes there is no way to know. BTW if you have an android smart phone, download the app Torque, amd buy a bluetooth ODB dongle off of ebay. That will give you way more than just a basic code reader.
  • LIKE2BUILD's avatar
    LIKE2BUILD
    Explorer
    Apr 01, 2016
    The 2005 Duramax had some issues with overheating due to air restrictions in the intake design. It's possible that under your towing load that air restriction came into play and the engine was running too hot.

About Travel Trailer Group

44,027 PostsLatest Activity: Apr 19, 2019