EGINE SURGING RPMS THEN ALMOST STALLING

  • Tiny
  • KIMMER67
  • 2003 Pontiac Grand Am
  • 3.4L
  • 6 CYL
  • FWD
  • automatic
  • 145,000 miles

PERIODICALLY WHEN I DRIVE MY GRAND AM IT WILL ACT UP. AFTER DRIVING APPROX. 15 MINUTES THE CAR WILL JUMPS IN RPMS AND THEN ALMOST STALL. SOMETIMES THE SERVICE ENGINE LIGHT WILL COME ON AND SAYS MASS AIR FLOW SENSOR.I HAVE REPLACED THIS AS WELL AS THE AIR IDLE CONTROL VALVE, THE THROTTLE POSITIONING SENSOR, THE EGR VALVE AND THERMOSTAT, I ALSO FIXED CATALYTIC CONVERTER. I AM STILL HAVING SAME ISSUE. NOTHING HAS HELPED. COULD IT BE ELECTRICAL ISSUE OR SOMETHING NOT CONNECTING? I HAVE NO CLUE WHAT TO DO NEXT

Tuesday, January 28th, 2014 AT 6:19 PM

1 Answer

  • Tiny
  • saturntech9
  • Expert
  • 28,425 posts

So what are the exact code number's not code descriptions do you have now?

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Tuesday, January 28th, 2014 AT 8:36 PM

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