Fast idle thermovalve

Tiny
MICHAEL BLEAKER
  • MEMBER
  • 1995 HONDA ACCORD
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 198,000 MILES
Can you repair fast idle thermovalve or does it have to be replaced if causes erratic idle untill engine warms up to normal opperating temperature?
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Friday, December 31st, 2010 AT 2:04 AM

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Tiny
KHLOW2008
  • EXPERT
That would depend on what is wrong.

If it has worked itself loose, replacing the Oring and readjusting would do but calibrating it might require trial and error.

If the coolant passages are clogged, you need to clear them.

If the thermovalve is bad, it has to be replaced.

From symptoms it seems the problem might not be due to thermovalve alone, check the idle adjust screw.
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Sunday, January 2nd, 2011 AT 6:24 AM

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