it is kinda hard to explain when I first give it gas, it runs kinda rough, then when I give it full throttle it sounds like a flapping noise like a card in the spoke or something...could it be a leak in the catalatic converter, or something else? Just had a tune up and it seemed to work find for a awhile...the ses light went away #2 spark plug and wire was corroded. But it seems to run kinda rough It almost sounds like one of the park plugs is misfiring or not up to par with the engine. Could it be a vac problem? Also it was doing this before the spark plug change and wires...so I think it might be a seperate problem. The mechanic also noticed there was a module not connected to the engine, so he engaged it and it didnt seem to make a difference. But I am wondering why this square block was not connected.
2001 Pontiac Bonneville SSEi with 160K (Retired)
Last edited by Stinger357; 01-03-2010 at 09:07 AM.