Reviving an old thread here...did you ever figure out the problem. I'm having a no spark/no start issue and am only getting 1v at my CKP sensor. Did you replace the ECM/PCM/VCM to fix yoir issue?
Thank you both! I had an extra laying around. I put a camera down to the cam area and those gears looked fine. Since it's so common in the vortecs, what what causes this kind of wear? I have two other 5.7 vortecs with higher mileage that still have the original in it with nowhere near the wear...
First post here. I tried looking around for the answer and found a few helpful things, but am hoping for some other ideas.
I have a 1997 K2500 Cheyenne with 204k miles on a 5.7 Vortec. I noticed it started to run rough, and checked out the timing. 29 degrees :(. I pulled out the distributor and...