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1991 Honda Accord engine zooms

Tiny
DBRAMBLETT
  • MEMBER
  • 1991 HONDA ACCORD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 182,000 MILES
Accord Wagon starts right away but begins to zoom. In other words rpms go up and down, up and down. Once transmission is placed in the drive position, the rpms settle down.

Any ideas about what is causing this problem and what remedy you suggest?
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Monday, August 30th, 2010 AT 6:48 AM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Hi dbramblett,

Symptoms indicates the idling speed is too high. Possible causes are :

1. Faulty IAC.
2. Leaking vacumns. Look out for disconnected, pnctured or broken hoses.
3. Faulty Fast Idle Thermo Valve.
4. Lack of coolant
5. Clogged coolant hoses to IAC and FITV.
6. Idle speed out of adjsutment. Readjust to rectify.
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Wednesday, September 1st, 2010 AT 1:39 PM

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