6.6 Duramax sudden power loss

Discussion in 'Chevy Truck Forum' started by Boilermaker, Mar 4, 2012.

Tags:
  1. Boilermaker

    Boilermaker Full Member

    Joined:
    Feb 11, 2012
    Messages:
    17
    Likes Received:
    5
    Trophy Points:
    1
    Occupation:
    Retired
    Location:
    Indiana
    My 05 Chevy duramax was running fine up I-75 until I took an exit ramp to get some fuel. When I got to the bottom of the ramp and I started to go again, the engine had lost almost all power and sounded like a 4-cyl with bad preignition. It would barely make 10 mph towing my camper trailer. I changed the fuel filter right away (I carry a spare), purged the air out of it and there was no improvement in the engine power. Is this one of those things that a dealer has to reset or is it something more serious?
     
  2. chevychase

    chevychase Semi-Admin
    Staff Member

    Joined:
    Oct 15, 2010
    Messages:
    22,209
    Likes Received:
    12,798
    Trophy Points:
    113
    Occupation:
    SELF EMPLOYED
    Location:
    truck forum .org
    Not much on diesels..do you have a service light? Did temp hand go to hot?
     
  3. Boilermaker

    Boilermaker Full Member

    Joined:
    Feb 11, 2012
    Messages:
    17
    Likes Received:
    5
    Trophy Points:
    1
    Occupation:
    Retired
    Location:
    Indiana
    Engine temp runs at the normal 190. Service engine light has been on all day. Probably not a good sign, but engine light is usually emissions related. Could that cause a shut-down?
     
  4. 98chevyz71

    98chevyz71 Full Member

    Joined:
    Dec 2, 2011
    Messages:
    35
    Likes Received:
    0
    Trophy Points:
    0
    Occupation:
    cat 565b asphalt mill operator
    Location:
    minnesota
  5. Boilermaker

    Boilermaker Full Member

    Joined:
    Feb 11, 2012
    Messages:
    17
    Likes Received:
    5
    Trophy Points:
    1
    Occupation:
    Retired
    Location:
    Indiana
    The problem was a defective fuel injector control module. Total cost for diagnosis and replacement is just over $2 grand. Seems like something that costs that much would be bullet proof. Thanks for the replies.
     
  6. leolkfrm

    leolkfrm Full Member

    Joined:
    Mar 2, 2008
    Messages:
    11,869
    Likes Received:
    6,942
    Trophy Points:
    113
    Location:
    N.Y.
    did the dealer fix it?...there are a lot of unwritten waurentees on the diesel systems
     
  7. Boilermaker

    Boilermaker Full Member

    Joined:
    Feb 11, 2012
    Messages:
    17
    Likes Received:
    5
    Trophy Points:
    1
    Occupation:
    Retired
    Location:
    Indiana
    I had a freightliner truck shop work on it. I will check and see if Chevy wants to make good on it. Thanks for the suggestion.
     
  8. geoturn

    geoturn New Member

    Joined:
    Oct 25, 2014
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    0
    #8 geoturn, Oct 25, 2014
    Last edited: Oct 27, 2014
    2008 6.6 L duramax, loss of power going uphill..pulling 5th wheel took to dealer changed fuel line, fuel filter and cleaned injectors. drove 85 miles and had same problem codes p0087,p2363,p0234.now they say may be turbo.. Takes to other mechanics and it runs great when not pulling 5th wheel so shouldn't be turbo? Don,t know what to do now. Still need help with this. George
     
  9. chevychase

    chevychase Semi-Admin
    Staff Member

    Joined:
    Oct 15, 2010
    Messages:
    22,209
    Likes Received:
    12,798
    Trophy Points:
    113
    Occupation:
    SELF EMPLOYED
    Location:
    truck forum .org
    you have some fuel lines/rubber collapsing will get poo87..with other codes sometimes the codes you post..but can get others. There is a technical service bulletin on this.
     
  10. chevychase

    chevychase Semi-Admin
    Staff Member

    Joined:
    Oct 15, 2010
    Messages:
    22,209
    Likes Received:
    12,798
    Trophy Points:
    113
    Occupation:
    SELF EMPLOYED
    Location:
    truck forum .org
    Google this will find your problem GM BULLETIN #PIP4526
     

Share This Page