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Re: 1996 gmc 4.3 distributor phase issue need help
My chilton book says there are notches on the inside base of the distributor, one with 8 one with 6. That is where you point your rotor when eng is on TDC. 6 for 6cyl.Also those marks must line up with distributor fully seated. Book say to turn over to TDC once more to make sure it is in fact lined up if not lined up repeat by moving one tooth at a time. recheck until it is confirmed correct, then start veh ecm takes over the timing.GOOD LUCK let us know how you do
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