1998 Saturn Station Wagon idle issue

Tiny
RSTEPH128
  • MEMBER
  • 1998 SATURN STATION WAGON
  • 1.9L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 109,000 MILES
When car is warmed up.I put the car in park. It will idle for 10mins. Idle jumps to 1500 To 2000rpms. I shut the car off and it idles at 1000rpm for the same then jumps to 1500 to 2000 rpms. The car never does this in gear though.
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Wednesday, February 11th, 2015 AT 4:21 PM

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Tiny
SATURNTECH9
  • EXPERT
Do you have the sw1 or sw2 model? Are your bumpers black or are they painted to match the car? I would suspect the coolant temp sensor being bad are there any codes in the computer? Also if it never happens in gear I wouldn't suspect a vacuum leak.
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Wednesday, February 11th, 2015 AT 7:22 PM

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