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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for July 15, 2012
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Open Help Requests for GM
Help Request Answers
1988 Chevrolet C1500 Cheyenne 5.0L engine VIN: 1GCDC14HXJ
here is one for u old school guys, got this truck that i am having trouble with. for some reason i can not get timing set correctly, at least i think so. i disconnect timing wire set to zero and reconnect, then timing advances to about 30deg. should it advance...

Fixes & Summaries for GM
Fix/Summary Answers
2003 GMC Safari 4.3L Misfire VIN: 1GTDM19X73
I received 28 replies to my post, most of them were good advice. Basically I narrowed it down to 3 possibilities, The MAF, an injector, or valve problem. I got the vehicle back briefly. I would have liked to try swapping injectors, but the are buried under th... Trouble codes: P0300 (Multiple random missfire).
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