Car Dying Out and Reviving Up

1999 OLDSMOBILE AURORA
124,000 MILES • 4.0L • V8 • FWD • AUTOMATIC
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DENNIS KIRK
  • MEMBER
  • 1 POST
My 1999 Aurora will die out when sitting at idle speed at a ligtht, etc. Sometimes it will rev up from to 2 or 3 thousand rpms, then quickly die down and then shut off. I have cleaned the throttle intake extensively and replaced the two sensors on the side of the throttle bottle. This past week I cleaned the throttle intake again, checked the air filter and left a sensor that was plugged into the air filter unplugged. Car ran great for three or four days, idled smoothly, no dying out. I was so happy. Then yesterday it all started again. Dying out, reviving up, hard to start. The check engine light has also been on since I checked and cleaned the air filter - is this because I left the sensor that connects the air filter storage unplugged?
Aug 9, 2014 at 6:10 AM
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HMAC300
  • ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
check for a vacuum leak including hoses etc. then scan for codes.
Aug 9, 2014 at 10:05 AM
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