IAC question
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Senior Member
Joined: Oct 2001
Posts: 504
Likes: 1
From: reidsville,nc,usa
Car: 1989 Firebird Formula 350
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: 9 Bolt Borg Warner 3.27 gears
IAC question
I grounded terminals A and B in the ALDL connector, waited 45 seconds then unplugged the IAC. However, I noticed that after 45 seconds or more had passed, the IAC was still clicking if you felt it. I thought it was suppose to stop when it was all the way in? Is this normal or what? Defective IAC perhaps? Also, on WinALDL, I showed the TPS at .54v the MAF at 9.4g and the IAC was at 78 in Park. Seems the IAC is kinda high in Park. Car has that slight stumble on the road.
Last edited by ken3983; Apr 17, 2016 at 12:59 PM.
Supreme Member
Joined: Jun 2011
Posts: 2,036
Likes: 6
From: knoxville tn
Car: 86 IROC
Engine: 5.0 TPI
Transmission: 700-R-4
Axle/Gears: 2.73 open
Re: IAC question
sounds like your IAC is toast , as they arent supposed to be clicking , i have found a few with a stripped gear that makes them do what you are describing
Joined: Apr 2010
Posts: 514
Likes: 44
From: New Jersey
Car: 87 Monte Carlo SS
Engine: 89 350TPI Transplant
Transmission: 2004r
Axle/Gears: 3.73
Re: IAC question
From my experience of doing that procedure, the IAC continues to click after it is seated. If you listen carefully, you can tell when it is seated because the sound of the clicks will have a definite change. If they aren't suppose to click, I guess mine is toast too, but seems to work fine.
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May 20, 2016 01:57 PM