My car idles high after driving for 15 miles or more between 2000-2500 rpm, When I put the car in park or neutral. When I shut off car and restart idle gos back to normal.

Asked by Arnold Oct 19, 2014 at 04:04 AM about the 1999 Saturn S-Series 4 Dr SW2 Wagon

Question type: Maintenance & Repair

It's a 4 cylinder automatic. 1999 Saturn
SW2

56,530

TransAm77 answered 10 years ago

Could be a bad throttle position sensor, bad/dirty mass air flow sensor, the intake might need to be cleaned. Are there any check/service engine soon light on in the dash?

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Arnold answered 10 years ago

Nope, no service lights... nothing else wrong with the car, drives well accept for the high idle after long drives.

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56,530

TransAm77 answered 10 years ago

Ok if there are no service lights on then it's probably going to be one or more of the things I mentioned earlier.

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Arnold answered 10 years ago

Ok thanks, will look into that....

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TransAm77 answered 10 years ago

Ok, n good luck.

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Angel answered 7 years ago

Whatever happened? Did you find the problem? My car is doing the same thing and I wanted to know if you ever found the culprit please…

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My car idles high after driving for 15 miles or more between 2000-2500 rpm, When I put the car in park or neutral. When I shut off car and restart idle gos back to normal. 6 Answers

It's a 4 cylinder automatic. 1999 Saturn SW2

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My car idles high after driving for 15 miles or more between 2000-2500 rpm, When I put the car in park or neutral. When I shut off car and restart idle gos back to normal.

6 Answers

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My car idles high after driving for 15 miles or more between 2000-2500 rpm, When I put the car in park or neutral. When I shut off car and restart idle gos back to normal.

6 Answers

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