1999 Grand Prix GT not a S.C. 106,000 miles. Just replaced upper intake Plenum with gaskets and new PCV plus cleaned throttle body and replaced bad MAF sensor. Now car starts rough and sends a white plum of smoke right after ignition but that quickly goes away. Car is noe losing a lot of oil somewhere and there are no apparent leaks. There is a sucking air sound coming from EGR that I have never noticed before. Is this air leak from the EGR the cause of my oil loss? Also, OBDII scanner reports bad Knock Sensor. Could this the problem and where is the knock sensor located? My Chiltons doesn't even list it.
Thursday, June 21st, 2007 AT 7:52 AM