Hi All -

bumping an old thread here, hoping for some clarification.

2007 4.7 4wd here, 191k on the clock.

Been having some rear driveshaft issues lately, planning on dropping the truck off to have them grease the spline of the DS first before we swap in a new one if it doesn't work. I'm also 99% sure my manifold is cracked, i have the bad sulfer smell as well as the tick on startup.

This morning when I turned the truck on for the first time EVER i had the CEL, VSC, and TRAC OFF lights on. Obviously immediately panicked - haven't had time to check the codes yet..though I did check the gas cap and it seemed loose..

Question: would a cracked manifold throw codes, and if so - is it possible to do some kind of a bypass?

I've already had to bypass the AIP system with a fix from one of the members here on the forum.

Cheers