This has been an on going issue for the past couple of months. This does not happen all the time though and is a real head scratcher for me. Truck starts up fine; cold, hot it really does not matter. It always starts fine. I will be driving down the road and get to a stop light and the truck as a really rough idle. At times I think it might die on me. When I take off it jerks and does not feel like it is going to go anywhere. It is not as noticeable at higher RPM though. You can still kind of hear the missfire sound. As I keep driving it clears it self up or If I stop and shut the truck off for about an hour and start it back up it runs fine again. This does not happen all the time, normally about once every other week or so. I have not be able to get a monitor on it while it is idling rough and running like crap because by the time I get back to my house to get it out the issue has stopped. I have a fuel pressure gauge in the truck and that holds steady at 60 psi and does not bounce around at all. The oil gets changed every 4k miles with Rotella T6 and RevX. I also change all the filters at that time too.
I check the DTC's regularly and consistently get the #7 contribution fault code. But, since it is so intermittent I do not think the injector is out. It feels more like a electrical issue. Maybe I am completely off though here and there really is something wrong with #7 injector.
Thanks for the help and let me know if you need more info and I will gather as I go.
I check the DTC's regularly and consistently get the #7 contribution fault code. But, since it is so intermittent I do not think the injector is out. It feels more like a electrical issue. Maybe I am completely off though here and there really is something wrong with #7 injector.
Thanks for the help and let me know if you need more info and I will gather as I go.