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 ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve [Archived]First  1 2 3 4 5 >  Last
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wildoutwhitegsr




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353 posts [100%]
Whitby Ontario
12-24-2005
  ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve« » 11:35 AM 3/29/2006 Reply  Edit

The function of the IACV a.k.a. Idle Air Control Valve is to adjust the idle based upon the amount of air entering the engine, then the computer reacts to this information by adjusting the cars rpm.

Reasons why you should take it apart and clean it:
-High idle after your car warms up
-Lumpy idle
-Roaming idle
-Hunting idle
-Fluctuating idle

Tools Needed:
Ratchet
12mm Socket
Pliers
Brake Cleaner or Simple Green
Paper Towels
A cooled down engine for at least 2 hours

1) Now you got to locate where the IACV is, pop your hood and it’s located directly behind the intake manifold. It’s actually connected to it. Remove your intake and strut tower bar. (If applicable)





2) Place a couple of rags underneath to catch the coolant spill. Loosen the two hoses running to the IACV with your pliers by squeezing the two clips and moving them away from the end, circled in yellow. DO NOT cut the hoses as they are the exact length and you will have to buy new ones if you do.

3) After doing that remove the harness connected to the IACV on the driver side, circle in blue.

4) Then to finally remove it from the intake manifold, remove the two 12mm bolts, circled in red.



Now that the IACV is removed from the intake manifold make sure that you do not lose the rubber gasket as you need this so that it does not leak after you re-install the IACV.

5) Take your brake cleaner or simple green and start to clean up the inside of the IACV by spray inside the two holes. Continue to do this until no more dirty fluid comes out. Should take anywhere from 5 minutes to 15 minutes. This depending on how old and dirty your IACV is. The gasket can be seen in this picture as well.



6) Once you’re done cleaning out the IACV let it air dry. I let it air out for 20 minutes while I did other maintenance on the car.

Now your ready to re-install it back on the car so follow the steps backwards from 5 – 2



Good Luck


"Spooning Leads to Forking"



RaceMyGhost




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678 posts [100%]
Valley CA
6-27-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (wildoutwhitegsr)« » 11:44 AM 3/29/2006 Reply  Edit

nice write up

DC4me




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1147 posts [100%]
763 to The Ocho Uno Ocho CA
10-16-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (wildoutwhitegsr)« » 12:39 PM 3/29/2006 Reply  Edit

another nice write up



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Slow*Jim




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1913 posts [98%]
Dublin Ohio
1-15-2003
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (DC4me)« » 1:44 PM 3/29/2006 Reply  Edit

threads like this should be stickied


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ChicagoMike




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735 posts [100%]
Tucson/Chicago
12-27-2005
 « « » 1:49 PM 3/29/2006 Reply  Edit

Great write up! I do this every now and again just to keep it clean and idleing perfect.


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PatrickGSR94
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20698 posts [101%]
Rich Redneck Country
1-9-2002
 « « » 1:53 PM 3/29/2006 Reply  Edit

hmm I've never done this, 226K miles on car, and I sometimes have a very slight fluctuation up and down from about 650 to 750 rpm. This could fix that?


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ChicagoMike




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735 posts [100%]
Tucson/Chicago
12-27-2005
 « Re: (PatrickGSR94)« » 1:56 PM 3/29/2006 Reply  Edit

Quote, originally posted by PatrickGSR94 »
hmm I've never done this, 226K miles on car, and I sometimes have a very slight fluctuation up and down from about 650 to 750 rpm. This could fix that?

Definately a good place to start!!


http://civic-eg.com/
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5923 posts [100%]
2-24-2002
 « Re: (RippinVTEC)« » 2:39 PM 3/29/2006 Reply  Edit

thanks for the pics man!!!!!!!!

Vu




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420 posts [100%]
New Iberia LA
12-25-2001
 « Re: (PatrickGSR94)« » 4:22 PM 3/29/2006 Reply  Edit

Quote, originally posted by PatrickGSR94 »
hmm I've never done this, 226K miles on car, and I sometimes have a very slight fluctuation up and down from about 650 to 750 rpm. This could fix that?


Would it by any chance fluctuate when the A/C comes on?

Cleaning the IACV worked for me


"There are five possible operations for any army. If you can fight, fight; if you cannot fight, defend; if you cannot defend, flee; if you cannot flee, surrender; if you cannot surrender, die. " - Sima Yi "Romance of the 3 Kingdoms"

Lewy. Dee Ayy




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2403 posts [97%]
RCautoworks ILL
10-29-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (wildoutwhitegsr)« » 9:21 PM 4/29/2006 Reply  Edit

can u rehost the pics?


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1990 posts [100%]
bay area CA
5-31-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (WhiteOut)« » 2:57 PM 4/30/2006 Reply  Edit

Quote, originally posted by WhiteOut »
can u rehost the pics?

x2


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38 posts [98%]
N
3-11-2006
 « « » 3:27 PM 4/30/2006 Reply  Edit

thanks i going to do this

Lewy. Dee Ayy




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2403 posts [97%]
RCautoworks ILL
10-29-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (wildoutwhitegsr)« » 11:30 PM 5/2/2006 Reply  Edit

bump for rehost..


RcAutoworks. Custom Fab Shop Call bob...so he can get it boosted fo ya

kuja




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441 posts [100%]
NY
3-24-2003
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (WhiteOut)« » 11:58 PM 5/2/2006 Reply  Edit

Quote, originally posted by WhiteOut »
bump for rehost..

x2


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morocco




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132 posts [100%]
Worcester
9-20-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (kuja)« » 3:41 PM 5/3/2006 Reply  Edit

Hey thanks a bunch man. I actually did this today for the first time (on a 103k car) and couldnt believe how dirty it actually was, and as far as I can tell, the rpm fluctuation stopped. Good write up too, all instructions were clear


Anthony "Mac Daddy Ant" Morocco

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1870 posts [100%]
Germantown MD
11-16-2001
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (morocco)« » 3:49 PM 5/3/2006 Reply  Edit

i want to say thanks too, great write ups man



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KillerElfboy




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488 posts [100%]
4-12-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (rohit)« » 4:21 PM 5/3/2006 Reply  Edit

Can you use throttle body cleaner? and just dump it in the holes,

when ur done, do u just let it air dry or do have to rinse the cleaner out?


1991 Integra RS coupe hatch 5 sp, 262,000 k and going strong
1994 Chevy s10 blazer 4 door.

wildoutwhitegsr




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353 posts [100%]
Whitby Ontario
12-24-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (KillerElfboy)« » 4:25 PM 5/3/2006 Reply  Edit

Quote, originally posted by KillerElfboy »
Can you use throttle body cleaner?

yes


The pics will hopefully be back up soon


"Spooning Leads to Forking"

KillerElfboy




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488 posts [100%]
4-12-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (wildoutwhitegsr)« » 4:28 PM 5/3/2006 Reply  Edit

i see them fine? i guess they're back?

if thats not the case, open each image in a new tab, thats what i did and they started showing up after a refresh


1991 Integra RS coupe hatch 5 sp, 262,000 k and going strong
1994 Chevy s10 blazer 4 door.

Jdm Blood




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62 posts [100%]
Drift City CA
8-12-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (KillerElfboy)« » 5:40 PM 5/3/2006 Reply  Edit

I clean the IACV and the FITV...new TB gasket...yet it still idle rough. When the car is warmin up...its fine until I gas it alittle then it idle fast...1 to 2. What to do? Also when I unplug the plug to the FITV...it idle fine with the check engine light on.


1989 Toyota Supra
1991 Honda Crx SI
1990 4dr Integra GS
1992 2dr Integra LS
1991 2dr Integra RS

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1072 posts [95%]
MiD_WeST
10-24-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (wildoutwhitegsr)« » 8:39 PM 5/3/2006 Reply  Edit

rehost pic. please.

wildoutwhitegsr




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353 posts [100%]
Whitby Ontario
12-24-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (poorman's type-r)« » 10:32 AM 5/4/2006 Reply  Edit

Quote, originally posted by poorman’s type-r »
rehost pic. please.

Your going to have to do what KillerElfboy said for now...

Right click on the pic, properties then copy and paste that link into a new browser. The pics will show up then, until I get more bandwidth.


"Spooning Leads to Forking"

Jdm Blood




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62 posts [100%]
Drift City CA
8-12-2005
 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve« » 2:23 PM 5/4/2006 Reply  Edit

For those who cant see the pics.







1989 Toyota Supra
1991 Honda Crx SI
1990 4dr Integra GS
1992 2dr Integra LS
1991 2dr Integra RS

DA Squad #413 DA Owner


JoePSI
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2001 posts [98%]
Gulf Breeze FL
1-3-2005


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 « Re: ***How-To Clean*** Your IACV a.k.a. Idle Air Control Valve (Jdm Blood)« » 4:03 PM 5/4/2006 Reply  Edit

I took mine off awhile ago and just pressure washed it out. didnt think a how to for this was needed but . good maint for ur car


Past:
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wildoutwhitegsr




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353 posts [100%]
Whitby Ontario
12-24-2005
 « « » 1:55 AM 5/5/2006 Reply  Edit

Thanks Jdm Blood


"Spooning Leads to Forking"
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