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Message: <blockquote data-quote="DateNight" data-source="post: 21196" data-attributes="member: 11473">New, maybe 50miles on it. but I’m going to pull it off again and inspect it.Oh yeah, I put a new crank shaft position sensor in it. Still didn’t fix it. When I did the tune up I put copper plugs in it. The factory calls for platinum. So I might put the old ones back in to see if anything changes.When I bought the truck I got it with the intention of swapping the v6. The guy I got it from was bragging on the engine being “rebuilt” etc. I knew then he was full of chit. I can 100% tell you for a fact this is a 275k mile v6 that’s never been opened up. The coil was still a factory GM coil, i had to grind the rivets down to replace it. The ground wires have never been off the block and looms never been disturbed.</blockquote>