| I spoke a little too quick. The rough idling returned. Turned out to be a defective new Mahle fuel filter. The problem started a day or two after replacing the filter that was on for over 14,000 miles. I could not believe that it was the new filter so I changed the wires, spark plugs and even flushed the fuel injectors, but the problem persisted. So I decided to change the fuel filter again, this time with a Purolator filter. Works like a charm. Back to smooth idle and excellent acceleration. No more Mahle fuel filters for me. |