2002 sat s series 4 door 189000 miles is hard to start and idles rough at 800 rpm, but only in park. When i put the car in gear the rpms go down to about 600 rpm and its smooth as silk.

Asked by Patrick Feb 15, 2015 at 04:07 PM about the 2002 Saturn S-Series 4 Dr SL Sedan

Question type: Maintenance & Repair

3,475

Paul answered 9 years ago

Hi have you tuned it up lately could be you just need a tune up your spark plugs could be really old that's where I'd start beyond that if you do a tune up and it's still running rough it could be your throttle position sensor it's in your throttle body not sure I can give you any more information other than do a tune up and go from there good luck!

Mark helpful

Your Answer:

2002 sat s series 4 door 189000 miles is hard to start and idles rough at 800 rpm, but only in park. When i put the car in gear the rpms go down to about 600 rpm and its smooth as silk. 1 Answer

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