My 1994 GMC van with a 350 engine started running rough in one day.

Asked by THOMAS Jun 21, 2020 at 11:45 PM about the 1994 GMC C/K 2500 Series

Question type: Maintenance & Repair

I put in can of heet thinking maybe bad gas. no luck,  dies at stop signs .
I changed spark plugs and wires, distributor cap and rotor, throttle body positioning sensor

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1994 GMC C/K 2500 Series

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