2002 Pontiac Grand Am engine running real high

91,200 MILES • 6 CYL • FWD • AUTOMATIC
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CBAKES
  • MEMBER
  • 2 POSTS
I'm having issues with my car. When I start it up it runs real high like you are driving 30 miles an hour. The rpm's are at 2.5. When I'm driving I don't have to push on the gas because the car is doing it for me which is scarey and I have to hit the brakes to slow it down. When I'm at the stop sign I have to really push on the brake to keep from going. Then when I sit at a light for a minute or so then it drops to normal like nothing happened. The rpm's drop down to .5 like normal when you are at a stop. what could be causing this because it's dangerous?
May 19, 2010 at 4:29 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Clean out the idle air control valve and throttle plate and test the throttle position sensor.
May 19, 2010 at 8:01 AM
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CBAKES
  • MEMBER
  • 2 POSTS
if having problems with the throttle sensor and stuff will that affect the engine temp and stuff? I had changed the temperature sensor and stuff and it's still get's hot.
May 19, 2010 at 10:06 AM
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