Car running rough

Asked by Mar 19, 2019 at 08:43 PM about the 1989 Chevrolet S-10 RWD

Question type: Maintenance & Repair

Why does my car start running rough when I slow
down and if I pull the pcv line off and let the engine
rev up it starts to work again has a new PCV valve

1 Answer


Most likely, there's a vacuum leak in the PCV line at the valve.

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