car loses power after driving 20 miles but runs rough

Asked by Oct 20, 2014 at 07:15 PM about the Oldsmobile Cutlass Supreme

Question type: General

Changed map sensor egr valve new caticonvert fuel pimp
spark plugs

1 Answer

Chec your catalic converter when hot, could be an air restriction which you can probably hear at tail pipe making a muffled sound.

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