not idling well
Thread Starter
Member
Joined: Sep 2004
Posts: 190
Likes: 0
From: Rochester
Car: 91 Camaro RS
Engine: 3.1L V6
Transmission: 700R4
Axle/Gears: Stock 3.23 open diff
not idling well
my car won't idle at a constant rpm. It keeps jumping from 1000 to about 2200 rpm. Anybody have any diagnoses??
Supreme Member
Joined: Mar 2000
Posts: 13,414
Likes: 6
From: Central NJ, USA
Car: 1986 Firebird
Engine: 2.8 V6
Transmission: 700R4
Sure, you need to clean the IAC (idle air control) motor's pintle (pointy tip) and passageway.
Tech info here:
https://www.thirdgen.org/forums/v6/1...ac-system.html
Tech info here:
https://www.thirdgen.org/forums/v6/1...ac-system.html
Supreme Member
Joined: Nov 2002
Posts: 1,832
Likes: 1
From: Castaic, CA
Car: 1988 Camaro RS
Engine: 2.8L of Raw POWER!!!
Transmission: Stick Shift
Axle/Gears: 3.42's
Have you driven the car since you installed the new IAC?
You have to go above 40mph for the IAC to reset to 0 and the computer to be able to idle correctly. Then check for Vacuum leaks around the hoses, brake booster and intake.
Unmetered air leaks are the #1 cause of erratic idle.
You have to go above 40mph for the IAC to reset to 0 and the computer to be able to idle correctly. Then check for Vacuum leaks around the hoses, brake booster and intake.
Unmetered air leaks are the #1 cause of erratic idle.
Thread Starter
Member
Joined: Sep 2004
Posts: 190
Likes: 0
From: Rochester
Car: 91 Camaro RS
Engine: 3.1L V6
Transmission: 700R4
Axle/Gears: Stock 3.23 open diff
No I haven't driven it yet this year cause I didn't want to mess anything up more. I guess you know what I'll be doing tomorrow.
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