Engine Performance problem
1998 Saturn SL2 4 cyl Two Wheel Drive Automatic 219000 miles
When I first start my vehicle, it starts up prfectly. It is not necessary to press on the gas pedal and starts immediately when I turn over my key. Without "warming it up" I place it on Drive Gear and take off perfectly as it should. Everything is ok up to this point. It is after a block distance where my vehicle malfunctions. There is an intersection where I come to a complete stop. As I apply my breaks and lift off the gas pedal, my vehicle stalls and shuts down. I attempt to re-start my car but it turns over and does not start that instant. It is the constant pressing on the gas pedal and keeping my key ignition turned over when it finally turns on after 15-30 seconds scare. Once I continue to drive for a while, my car my problem dissapears. I can start and shut off multiple times. It is untill an extended period off time that my vehicles is turned off that my problem repeats. IE: every day before I go to work. I just passsed smog 15 days ago but my problem existed beforehand. No engine light on and no trouble codes stored. Two related questions. Why does my automobile stall and why is difficult to re-start after it shuts down?
The parts that I have replaced new are spark plugs, plug wires, PCV, fuel filter/pressure redulator, coolant temp sensor, air temp sensor, crankcase vaccum hose, air filter, removed and cleaned the IAC valve.
have the same problem?
Friday, May 28th, 2010 AT 12:14 AM