Mike from OK
Newbie
2000 7.4 vortec in a c3500. This truck belongs to my son and I have been helping him work on it when he needs more than two hands. Shortly after he purchased it, the truck began missing and running rough. He replaced plugs, wires, cap and rotor. No better so he pulled the upper intake and found two lower intake bolts laying in the intake. Pulled the lower and replaced the gaskets, reassembled but it still had a misfire. Replaced the injectors, still misfiring. So now to the question, can the cam offset cause a misfire issue as I’ve described. Truck starts good, makes no noise just has a misfire. As the engine turns over with the starter it does sound like it may be out of time, but starts up and idles just shakes with the misfire.Engine compression is consistent at 135 psi. Thanks for your thoughts on this. Mike