Simply disconnect plug by plug, ground wire by ground wire. Disconnect the battery first. Can you clue us in, as to why you need to remove the engine wire harness? Is the engine harness defective? Are you simply replacing a blown up engine? Doing an engine swap to something else? Or?
I am doing a 5.3 swap. I am sending off the harness to get reworked to work with the 5.3. I got it out. there was a torx head in the plug on the firewall
Before I send it off and spend 900 maybe I will look into modifying my harness. Any Suggestions?
If modifying your own harness I'd start with the 5.3 harness myselfOriginally Posted by ChrisGMC
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