Ok, i've been having a problem for a while with my 1999 saturn SL-2 automatic transmission. My car occasionally will not start, but the starter is good. The starter is making contact, not clicking or grinding, but the car just won't start. Also, at random points when I am driving, the car acts like its in neutral. It will start slowing down, coast to a stop, and die. If I put my foot down all the way on the gas pedal, it won't even rev. My service engine light indicated "Throttle Positioning Sensor". I replaced that today, and it's still doing the same thing. I've also cleaned the EGR valve, and it's not helping either. Two questions: Is there something called an EGR flow sensor, and if so, could this be the problem? And if not, what is my next step? Update: I took it back to auto zone as my service engine light is back on AGAIN. Tested battery alternator and starter. All passed. When they hooked the diagnostic thing up to check for codes. It kept saying "error communicating with vehicle."
have the same problem?
Thursday, April 26th, 2007 AT 9:32 AM