How to detect faulty IACV

Tiny
LAMBOSKY
  • MEMBER
  • 2003 HONDA ACCORD
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 152,000 MILES
How do I detect a faulty IACV? Does the pipe on the bearing has to be very free when rotating it? Thank you. John
Friday, December 16th, 2016 AT 6:27 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
You scan for codes to check an IAC. The throttle shaft should be free, but that does not touch the IAC the IAC moves in and out to block air so it will idle correctly. Try cleaning throttle plate and IAC hole with choke cleaner. Clean plate on both sides.
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Friday, December 16th, 2016 AT 7:53 AM

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