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Re: 1991 chevy 1500 5.7 tbi erratic idle
well thought we had it narrowed to a dirty injector so I hjad them cleaned and now they flow nicely. hooked a smoke machine up. no vacuum leaks. the timing was advaNCED 3 DEGREES BUT HE TOLD ME THAT WOULDNT HURT ANYTHING... i DONT KNOW MUCH ABOUT TIMING , is 3 ok? and how to check throttle shaft? thanks again
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