idle trouble

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05-21-2012, 07:44 PM

TifPol

Junior Member

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Join Date: May 2012

Posts: 1

idle trouble

99 honda civic lx 1.6 liter 4 cyl, when car warms up idle revs up then back down almost to the point of stalling then revs back up, anyone have any ideas?

05-22-2012, 09:03 AM

cvcrcr99

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Join Date: Aug 2007

Location: DUB Caeser

Posts: 7,318

Clean out your IACV and check for vacuum leaks would be my first suggestions.

05-22-2012, 01:35 PM

mk378

Recognized HCF Member

Join Date: Jun 2007

Posts: 10,023

Also check that the cooling system is full. Take the radiator cap off with the engine COLD parked on level ground, the radiator should be full to the top.