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Re: 1991 chevy 1500 5.7 tbi erratic idle
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Originally Posted by tpulliam79
well put a stethoscope on the dizzy and it sure doesnt sound right seems like it makes a weird sound right before the idle gets funny.. how do you use a timing light?
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its easy hook it up to the battery(red wire to red +/ black wire to black - battery terminals). then hook the induction pickup to # 1 spark plug wire(be careful not to burn it on exhaust). start engine point timing light to balancer and timing tab. pull trigger and enjoy the light show(light will flash). balancer mark will line up with timing tab zero degrees. if not rotate distributor slowly until it lines up(loosen holdown bolt until its just snug)
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Last edited by NEUMANNZZ; 10-23-2008 at 01:45 PM.
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