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Idle control valve cleaning help V4 Sti

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Old 06 April 2014, 05:11 PM
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timmy2take
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Default Idle control valve cleaning help V4 Sti

Hi, I've got a bit of fluctuating in my revs and have bought a new gasket for when I went to clean it.

I can't seem to find the threads on how to clean it and I'm not entirely sure where to clean it?
I've taken the two screws off the top and pulled it off what looked like a rotor arm?

I must be looking at the wrong part though because the gasket I have doesn't fit that part.

I'm guessing I need to take the idle control valve whole part off the inlet manifold?

Its on a v4 STI
Old 06 April 2014, 05:40 PM
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Worlasshasansti
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Yes fella should be two screws holding the IACV to the manifold, remove it then you will see the port which will be full of black carbon build up sh*te, give it a good clean out with something like carb cleaner or similar! you can go further and use a cordless drill to spin the mechanism but it might not need it.

Mick
Old 06 April 2014, 05:55 PM
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just me
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when I did mine I noticed lots of crap inside the throttle body, is it safe to take it off and clean inside it?
Old 06 April 2014, 06:05 PM
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timmy2take
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I've done the 2 bolts at the back of it (the yellow sticker side) but it doesn't seem to be coming off. Should it come off easy now? I can see 2 more small vacuum hoses attached but they shouldn't be getting in the way of making it come off.
Old 06 April 2014, 06:13 PM
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marco58
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Originally Posted by timmy2take
I've done the 2 bolts at the back of it (the yellow sticker side) but it doesn't seem to be coming off. Should it come off easy now? I can see 2 more small vacuum hoses attached but they shouldn't be getting in the way of making it come off.
im sure there are three bolts mate,when you put the top back on make sure the rubber ring {gasket} is seated properly

Last edited by marco58; 06 April 2014 at 06:16 PM.
Old 06 April 2014, 06:25 PM
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CutMasterT
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Originally Posted by timmy2take
I've done the 2 bolts at the back of it (the yellow sticker side) but it doesn't seem to be coming off. Should it come off easy now? I can see 2 more small vacuum hoses attached but they shouldn't be getting in the way of making it come off.
think there are 3 bolts on the back
Old 06 April 2014, 06:27 PM
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Worlasshasansti
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Actually yeah there may be 3 as mine was a newage IACV
Old 06 April 2014, 08:54 PM
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timmy2take
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Found that extra bolt thanks.

All done, fingers crossed it sorts the idle out.
Old 07 April 2014, 08:08 AM
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CutMasterT
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Let us know if it worked. Mine has a slight fluctuation when idling too and am hoping to do the same
Old 07 April 2014, 11:23 AM
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timmy2take
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Still got a little bit of fluctuation but its a lot better.

Will have a look at the hoses
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