How to: Clean a Zetec IAC - Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum
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Old 07-12-2011, 11:25 AM   #1
xecutionr
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How to: Clean a Zetec IAC

This thread is to help everyone with that nasty idle problem with higher mileage Zetecs.

Tools needed:
2 Jack stands
1 Jack]
flat head screw driver
8mm socket with ratchet
(1/4 inch is recommended, 1/2 inch is hard to use in tight spaces)
Carb/Choke Cleaner (semi large can depends on how much buildup there is)


Step 1: raise and support focus with jack stands


Step 2: get your flat head screw driver and take off the intake tube on the throttle body so you can gain access to the IAC when you take it off from underneath


Step 3: get under the car with your 8mm socket ratchet and start feeling up in behind the starter on the intake manifold there should be two bolts loosen them up and then take them out with your hand, they are easy to take out. The IAC Looks like this on the intake manifold, the silver cylinder looking thing.



here is a pic of the IAC location from under the car you can tell its really hidden away





Step 4: once the IAC bolts are out it should be sitting in there because of the tight space, it wont fall out because there is a wire connected to it. get back on topside of the car and grab this wire that my index finger is pointing/laying on and that is the wire you can use to pull the IAC out..

dont jerk manuver the IAC around from atop so that it can easily be pulled out.


Step 5: grab your carb cleaner and go to town on inside of the IAC valve




BEFORE






AFTER






Step 6: let the IAC valve dry in the sun or just air dry until no cleaner comes out of it. then reinstall!

Hope this helps everyone that has this problem!


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1979 Ford F-150 Custom 200,000 and counting
2003 Ford Focus Zx3 - 130,000 and counting (DD)
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