I have taken the car to the buick dealership. They replaced the spark plugs and plug wires, no help. Wanted to keep replacing parts until solution appeared, said no.
Went to independent reair guy, he said it was the intake manifold, manifold was replaced, still same misfire at idle. Once the car accelerates it runs like a charm. Just misfires at idle.
Compression is OK, Coils are OK, Wires OK, Plugs NEw, Intake manifold NEw.
HELP!!!
thanks
Jim