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Unread 04-19-2009, 09:14 PM   #1
Haleyrz
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How to clean your idle air control valve

I figured I'd write up a how to for anyones future reference in attempt to prevent a ton of posts about this (but we all know how the search feature is not utilized, haha). Anyways, the jeep was idling a little rough and at times it would start up at 2200 rpms and slowly settle down so a few had recommended me to change or clean my IAC (idle air control valve). Figured I would clean it first.

Step one: Buy a throttle body cleaner or carburetor cleaner to clean with. Carb cleaner will be much much stronger so I went with throttle body cleaner. I didn't want to ruin anything.


Step Two: Remove the intake tube and reveal the throttle body.

Step Three: DISCONNECT THE BATTERY!

Step Four: Locate the IAC. In my case with my 5.2L V8 ZJ, its on the back of the throttle body. Remove the two bolts and it will come out.


Step Five: Disconnect the IAC from the power connector. This is how dirty mine was!


Step Six: Spray, wipe, spray wipe til clean. And here it is!


You can from here continue to clean out your throttle body. I would recommend this. My jeep idles like butter now!

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Unread 04-19-2009, 10:43 PM   #2
micifus
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electric tooth brush, Classy
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Unread 04-19-2009, 10:45 PM   #3
Haleyrz
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Its not an electric tooth brush! Its a SonicStage Detail brush! Lol....ok, technically its a tooth brush. I bought it for my wheels, because thats what lazy people do. But i've found some interesting uses around the jeep since, lol.
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1997 XJ, 4.0L, 30x9.50 Maxxis Bighorns, super 44, Sold
2003 WJ Overland, 4.7L HO V8, 6000K HID's, Sold
1996 ZJ Laredo, 5.2L V8, 3" Kolak exhaust, K&N FIPK, 4300K HID's, Sold

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Unread 04-20-2009, 02:03 AM   #4
CULate
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Good write up. Thanks
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Unread 04-21-2009, 10:03 AM   #5
T Hoff
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Like Butter

Thank you Linda Richman

Same location on the L6?
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Unread 04-21-2009, 10:20 AM   #6
RyanZJ
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One thing you might want to mention in your writeup is to make sure not to push or pull on the pintle, and to avoid spinning it. Other than that, nice writeup!
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Unread 04-21-2009, 10:22 AM   #7
T Hoff
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Doesn't it work like a solenoid? It would move in and out as required. I thought anyway
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1985 chevy stepside pickup, 300K on the clock: Original Owner
1989 Volvo 240 300K on the clock: Original Owner
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Unread 04-21-2009, 10:44 AM   #8
RyanZJ
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Yeah, but if you push/pull on it you'll break it.
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Unread 04-21-2009, 10:47 AM   #9
besthaticouldo
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good write up man...thanks!
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Unread 04-21-2009, 11:05 AM   #10
zippome
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Quote:
Originally Posted by besthaticouldo View Post
good write up WOman...thanks!
haha there ya go
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Unread 04-21-2009, 11:08 AM   #11
besthaticouldo
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Quote:
Originally Posted by zippome View Post
haha there ya go
thanks! sorry i totally assumed it was a dude, my apologies
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Unread 04-21-2009, 12:01 PM   #12
HighLonesome
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You should clean the hole in TB too. Where the plunger mates.
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Unread 04-21-2009, 05:54 PM   #13
shdybrady19
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hey mine doesnt have a shaft it just has a spring. Is this normal?
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Originally Posted by nick62087 View Post
If you can weld and aren't afraid to take a chance, I'd say try it - someone's gotta do it.
LOOKING FOR 96-98 ZJ CARPET, TAN OR BLACK IN COLOR, ALSO LOOKING FOR HOOD HINGES. 93-95 MIGHT BE COMPATIBLE
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Unread 04-21-2009, 07:13 PM   #14
ZeeJay1997
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Quote:
Originally Posted by shdybrady19 View Post
hey mine doesnt have a shaft it just has a spring. Is this normal?
If I understand your question:

Uhmmmm.... NO!

The plunger is probably still in the hole...

Time for a new IAC
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Unread 04-21-2009, 07:28 PM   #15
shdybrady19
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i replaced it and it works. Still dies in reverse tho.
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Quote:
Originally Posted by nick62087 View Post
If you can weld and aren't afraid to take a chance, I'd say try it - someone's gotta do it.
LOOKING FOR 96-98 ZJ CARPET, TAN OR BLACK IN COLOR, ALSO LOOKING FOR HOOD HINGES. 93-95 MIGHT BE COMPATIBLE
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