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Detroit 60 series 12.7L Egr problems

Discussion in 'Trucks [ Eighteen Wheelers ]' started by BAYOU, May 22, 2012.

Page 1 of 3
  1. May 22, 2012 #1
    BAYOU

    BAYOU Road Train Member

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    I have ask been asking about this for sometimes and now my ddec 5 is down I can no longer pull loads with it and not one shop can give me a answer on the dyno today the the truck starts making 32lbs of boost than turbo will cheerp and boost drops down to 20lbs than while doing that it rolls black smoke than Egr temp was over 600 degrees the fan comes on and stays on until you take your foot out of it we have changed the inter cooler with new boots new clamps Egr cooler Egr valve v pod turbo run a over head and reflased the ECM I have spent over $6,000 on it now with no fix
    Can someone help me out I can not be the only person that has had this problem
     
    Last edited: May 22, 2012
    BAYOU, May 22, 2012
    BAYOU, May 22, 2012
    #1
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  3. May 23, 2012 #2
    blanco

    blanco Road Train Member

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    Best bet would be to put on dyno and pull codes as the faults occur
     
    blanco, May 23, 2012
    blanco, May 23, 2012
    #2
  4. May 23, 2012 #3
    BAYOU

    BAYOU Road Train Member

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    read it again!!!
     
    BAYOU, May 23, 2012
    BAYOU, May 23, 2012
    #3
  5. May 23, 2012 #4
    freightlinerman

    freightlinerman Road Train Member

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    I guess its a process of elimination. What causes the vanes to open/close to regulate the boost on the turbo? What are the requirements for the EGR valve to open and close? Research and find out what and why. What causes the fan to turn on besides the A/C and hot coolant?


    It's a cause and effect, it sound's like they are just throwing parts at it. You should try to find a manual and read up on the stuff mentioned above. If you can, compare a snap shot of your truck's ECM while running to ANOTHER indentical truck or truck with the same engine. For exmaple, if your truck shows the ambient temp is 20 degrees, and the other truck next to you is showing 96 degrees, that could be your issue. That's just an analogy, you have to find the symptoms to make the diagnosis.
     
    freightlinerman, May 23, 2012
    freightlinerman, May 23, 2012
    #4
  7. May 23, 2012 #5
    BAYOU

    BAYOU Road Train Member

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    Beaumont,Tx
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    We are doing the ECM swop tomorrow
     
    BAYOU, May 23, 2012
    BAYOU, May 23, 2012
    #5
  8. May 23, 2012 #6
    freightlinerman

    freightlinerman Road Train Member

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    I hope that fixes it, but it will suck after replacing all those parts and spending that $. What shop(S) did you take it to anyway?
     
    freightlinerman, May 23, 2012
    freightlinerman, May 23, 2012
    #6
  9. May 23, 2012 #7
    3rd Gen Driver

    3rd Gen Driver Light Load Member

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    What's the 20 on your truck?
     
    3rd Gen Driver, May 23, 2012
    3rd Gen Driver, May 23, 2012
    #7
  10. May 24, 2012 #8
    BAYOU

    BAYOU Road Train Member

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    Beaumont,Tx
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    It's at Stewart and stevens in Houston,tx now my local guy has worked on it a few times and it's over his head than off to Freightliner that was the biggest wast now I'm at shop number 3. I'm at ECM king in santa fa,tx they are looking at the ecm now
     
    BAYOU, May 24, 2012
    BAYOU, May 24, 2012
    #8
  11. May 27, 2012 #9
    BAYOU

    BAYOU Road Train Member

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    Sep 23, 2010
    Beaumont,Tx
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    Ok so after we did the ECM that also didn't fix it what makes the Egr valve work what makes it go into Egr mode
     
    BAYOU, May 27, 2012
    BAYOU, May 27, 2012
    #9
  12. May 29, 2012 #10
    PawPah

    PawPah Bobtail Member

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    talk to Brad Wheeler in the Macon GA area. he can fix you up, BUT GOOD!
     
    PawPah, May 29, 2012
    PawPah, May 29, 2012
    #10
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