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Re: 1991 chevy 1500 5.7 tbi erratic idle
Does the Truck still have the charcol canister still hook up? If yes, check the lines for breaks. It could be causing a vac leak.
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94 K1500 Ext. Cab Long Bed, 260,000 miles.
MSD Blaster Coil, MSD Disturbtor, K&N Air Filter, TBI Riser Plate.
7 1/2 foot Blizzard Plow.
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