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My car is idling erratic when I'm in park and.

Tiny
ANONYMOUS
  • MEMBER
  • 1993 HONDA ACCORD
  • 240,000 MILES
My car is idling erratic when I'm in park and also the lowest my idle will go is 1100rpm. This is even after adjusting the idle screw to close, but the rpm still is high. In the past, is was around 750-800rpm.
Saturday, December 8th, 2012 AT 8:49 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Check for vacum leakages, PCV. Check the Fast Idle Thermal Valve (FITV). Remove the air hose fromm throttle body and use a cardboard to close the lower prt immediately inside the throttle bore to test idling goes down.
Check the IAC as well.
Check coolant level and ensure the hoses to IAC and FITV are not clogged.
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Sunday, December 9th, 2012 AT 11:27 AM

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