1991 Honda Accord idles high then low

Tiny
THEUNBEATABLE
  • MEMBER
  • 1991 HONDA ACCORD
  • 4 CYL
  • FWD
  • MANUAL
  • 204,000 MILES
It idles high then low. What is it?
Sunday, June 8th, 2008 AT 3:20 PM

1 Reply

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

There a re a few reasons for that to happen.

1. Idling speed too high.

2. Vacumn hoses leakage.

3. Fast idle valve not closing fully, maybe due to clogged bypass hoses or lack of coolant.

4. Faulty EACV.
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Monday, June 9th, 2008 AT 7:47 AM

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