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1992 Honda Accord idleing

Tiny
JPBWANA
  • MEMBER
  • 1992 HONDA ACCORD
Engine Mechanical problem
1992 Honda Accord 4 cyl Two Wheel Drive Manual

When I start my car in the morning I know that it should have a higher idle than normal about 1500 rpm, But recently when I start the car my idle races up to about 2800 rpm and the drops to about 1500 rpm only to repeat this cycle for the next 20 minutes. It only takes 5 minutes or so to warm up the car as we live in Vegas. But this still continues for another 15 minutes and then everything reverts to normal. What's wrong with my car? Thank you very much.
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Tuesday, February 9th, 2010 AT 11:22 AM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi jpbwana,

The idling speed is too high and possible causes are :

1. Low coolant level.
2. Faulty IAC or clogged coolant hoses to it.
3. Faulty Fast Idle Thermal Valve or clogged coolant hoses to it.
4. Leaking vacumns, not likely if the idling reverts to normal after it warms up.
5. Idle adjust screw working itself loose.
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Friday, February 12th, 2010 AT 8:57 PM

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