2000 Other Saturn Models High idle

FERRETSQUIG

MEMBER
2000 SATURN
4 CYL
2WD
MANUAL
59,000 MILES

At seemingly random intervals the engine idles at higher than normal rpm, varying from 1.5 to 2k. It only begins after the engine has warmed up and it continues to idle at a certain rpm until the car is turned off. If the car is immediately restarted the problem will persist, but if the engine is allowed to cool down the car seems to idle properly again.

1 Reply

JVJALASKA

MEMBER
1 POST

� I noticed a lot of people were having this problem, tried calling Saturn (jerks) after 5 months I FOUND OUT WHY. The ECT (engine Cooling Temp Sensor) was bad it registers the out of engine temp to be -36 below when it is actually 52 above so the car is overheating, The sensor is the bottom sensor (there is two senors at this place and they look like a small metal tube about the size of a spark plug) on the right hand side right above the oil check area. New sensor about $20-to 30 replace time 15 minutes- make sure you have new one ready because once you take it out antifreeze will fly out. The sensors cost about $300-500 to be replaced at a shop, why? Hopefully this will help someone else & save you money also.