1990 Honda Accord Engine idling

255,000 MILES • 4 CYL • 2WD • MANUAL
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HESSIE
  • MEMBER
  • 1 POST
The idle on my 1990 Accord LX goes up and down when cold and also when warm. It eventually subsides. My question is does the Idle Air Control valve needs replacing or can it be removed and cleaned with say WD40?
Mar 14, 2009 at 12:24 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
Hi hessie,

For this model it is more likely vacumn leakages than the EACV.

Check if idling speed is correctly adjusted.
Check for coolant shortage or clogging of coolant hoses to and from EACV.
Mar 16, 2009 at 8:07 AM
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