Rawze.com: Rawze's ISX Technical Discussion and more

Hey there, I have a 2004 Volvo vnl with a isx dual cam cummins. I bought the truck about 9 months ago and I cannot figure out why it is skipping. I had a new head put on it and had the overhead ran 3 times, put in new injectors and still skipping. Running down the road, I have no issues, but when I idle, it skips. Some days are worse than others tht it skips so bad it shakes the truck. Took to a few shops and no1 can figure it out. I have zero fault codes. Thx for ur help![/b]

Maybe your static timing wasn't set properly when they changed the head.

#1. make sure it is not getting air in the fuel.

#2. make sure it passes an injector leak test.
ref: http://rawze.com/forums/showthread.php?t...8#pid67948

#3. check the metering and timing solenoids for step wear on the shanks of the plungers.
ref: http://rawze.com/forums/showthread.php?t...619#pid619