After months of troubleshooting I think I have finally made progress on my car intermittently cranking but not starting. I found a guy that had told me that the wire harness on the ignition module is worn out and that the car looses cam signal. In March of this year the dealer changed the connector to the ignition module, but did not change out the entire harness. Of course I want this harness changed out with AC Delco part. What I want to know is; is this a difficult job and how much work needs to be done to change out this wire harness?

Thank you.

 

So you're changing an entire wiring harness? I'd personally get new wire if you're having problems with one area, solder it in place, heat shrink, and even add some of those new nylon wire loom if you want it to look super pretty.

As for the job it's not that hard - just follow the wires where ever they meander and disconnect (while the car is cool).