14l 60 series derriot power loss

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Romo5305, Apr 9, 2023.

  1. Romo5305

    Romo5305 Bobtail Member

    1
    0
    Apr 9, 2023
    0
    I amd haveing a issues with 05 freighliner colombia. Truck runs great uo intill 9th 10th gear then it strarts chuging and blow poof of black smoke. Does same thon in tenth gear likr it has no power. I have had a new headgasket and redone head put on truck ran greay for 2 weeks after the head install. I had truck at freightline they changed vpod and vpod wirring harnes and didnt fix isusse. This week i changwd all the egr stuff. Egr valve and egr cooler. Delta p sensor new fuel and air filter Had a new turbo anout 2 years ago. Any hwlp would be so greatly appericated
     
    Last edited: Apr 9, 2023
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  3. Oldschool3400

    Oldschool3400 Bobtail Member

    13
    7
    Apr 11, 2023
    0
    How is the manifold pressure?
    Inspect turbo?
    Intake manifold gaskets?, manifold loose?
    ATAAC leaks?
     
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