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Thread: How to: Clean a Zetec IAC Reply to Thread
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Topic Review (Newest First)
11-23-2014 12:15 AM
Mikey27
Quote:
Originally Posted by diyengineer View Post
Sounds like that is what my problem is, doesnt idle worth crap, turn AC on car dies.
When mine took a shit it just refused to idle at all, it would start, and immediately stall. To limp it home I had to keep my foot on the pedal to keep the engine at idle speeds when sitting. I cleaned mine meticulously, and it worked for a while, but it came back. Replaced it with a new one, never had a problem. On the gasket note, mine never had a fiber gasket, it used two o rings to seal. The new valve came with a fiber gasket, which I did not install, sealed just fine on the o rings.
11-22-2014 01:27 PM
diyengineer Sounds like that is what my problem is, doesnt idle worth crap, turn AC on car dies.
05-29-2014 10:33 PM
Adventure-Biker
Yes....there is: Quick, Easy IAC Fix

Quote:
Originally Posted by Daddy MO View Post
Also is there a way to test to make sure the IAC is even good before I put it back in since its a pain to get out. When I plug it in and turn the car on I dont see the plunger inside do anything but stay open about 1/16".

Getting it out was easy using a ratcheting closed 8mm wrench and a mirror to help with the top bolt. Getting it back on I know will be a PIA!!!!
There is a quick easy way to test the IAC on the car and perform an easy temporary, short term fix:
http://www.focusfanatics.com/forum/s...6&postcount=24


------------------------------------------
http://youtu.be/U8TsUZhH4oU
01-29-2014 12:11 PM
my_beautious_ZX3
Quote:
Originally Posted by Daddy MO View Post
Also is there a way to test to make sure the IAC is even good before I put it back in since its a pain to get out. When I plug it in and turn the car on I dont see the plunger inside do anything but stay open about 1/16".
that's the $64,000 question.

I've never seen any test suggestions on this forum. It's not an on/off valve, so the conventional test of applying 12v won't reveal much. Many of us just grab TB cleaner + a handful of Qtips, clean the living hell out of it, and then cross our fingers.
01-28-2014 06:38 PM
Daddy MO I found the answer for the gasket and it looks like whoever installed my motor half assed it and just made a gasket with some silicone stuff! I found the part number and pic for the actual OEM gasket. "Motorcraft CG-756 Idle Control Valve Gasket"

Still need to know how to test the IAC while off the manifold.
01-28-2014 06:32 PM
Daddy MO Diggin this up from the dead... I removed my IAC and it looked like there wasnt a paper gasket on there as someone mentioned previously on this thread. Looks like 2 rubber O rings maybe and some liquid/flexible gasket maker type stuff. So my question is do I need to make a gakset or go buy one from the dealer? Also is there a way to test to make sure the IAC is even good before I put it back in since its a pain to get out. When I plug it in and turn the car on I dont see the plunger inside do anything but stay open about 1/16".

Getting it out was easy using a ratcheting closed 8mm wrench and a mirror to help with the top bolt. Getting it back on I know will be a PIA!!!!
11-20-2013 01:36 PM
xecutionr just an update I forgot i deleted that photo bucket account and i no longer have the pics.. I'm sorry everyone. plus i no longer own my focus…

thanks guys
09-14-2013 12:02 AM
amc49 I don't hesitate to take that coating off and never had any corrosion issues ever............been doing it for years on metal TBs. Maybe the cleaner there was suspect, a strong alkali soap would produce that effect and quick. I use acetone and I guarantee the coating is gone almost instantly.
09-13-2013 09:39 PM
shwbshaw1
Quote:
Originally Posted by xxMichaelAnthony View Post
Use THROTTLE BODY cleaner. Most cars have a teflon or similar coating inside metal intake parts. Carb and break clean will take it right off and it will start to pit like a son of a bitch. I found this out when I cleaned the IAC and throttle body in my Ranger. Had to buy a new throttle body and IAC. The butter fly in my throttle body seized up and the IAC seized also. Better safe then sorry.
I believe the intake and the throttle body are both plastic on the focus.
12-13-2012 11:16 PM
Oblivion
Quote:
Originally Posted by PWGuy View Post
It would be great to have a video walkthrough - please let us know when it's uploaded and where!
Here you go! I posted it on YouTube. I finally had some time off of work today.
I had finals in college on the 12th yesterday, and between two full time jobs, I don't have much time!

I didn't actually remove it from the vehicle, but I did CLEARLY point out where the x2 8mm screws are at (I called them bolts; Sorry).
I also gave some extra information on what to do next (such as hoisting it up by the cables from the top, and the oil filter).

Here's the video / link:
- http://www.youtube.com/watch?v=RadB8iKzs5k
YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.


Enjoy! I SERIOUSLY! Hope this helps someone! I also have videos now on removing/replacing the base shifter plate, PCV valve, EGR valve, IAC valve (above), and others.
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