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Throttle Body related maintenance- DIY write-up

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Old 09-30-2007, 08:50 PM
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Default Throttle Body related maintenance- DIY write-up

After searching all the threads for how to clean/fix this stuff, everything I read made it more complicated than it actually was. SO, i made a dummy guide.
This should fix the idle bounce for those of you with idle bounce only at warm-up.
IACV (Idle Air Control Valve)

What you need:
12mm socket (i had some weird tool that bit on but it is a 12mm bolt)
carb cleaner or WD40 or other cleaning product (i used WD40 cuz its what i had)
toothbrush
pliars
something sharp like an icepick
towels or paper towels (to absorb about half a cup of coolant that'll spew out)
Q-tips (10-20 of them to clean hard to reach areas)
a little tray to work in. (to keep things clean)
gloves help cuz ur hands will be exposed to a lot of chemicals
air compressor (not required, but speeds things along)

heres a pic of what you should be looking at.

BLUE = IACV (what you should look at)
RED = 12mm bolts you need to take out
GREEN = sensor+plug


RED in this pic = coolant lines.

So now that you have everything identified, and ur supplies ready:
Make sure your car is cooled down!!
1)loosen the bolts and take the bolts out remember which is which because one is longer.)
2)place ur towels under the coolant lines
3)take your pliars and clip the little metal fastener thingies until u can move the metal thingy back 2 inches so that its not biting onto your IACV.
4)with the pliars, firmly grip onto the coolant line and twist back and forth to loosen up the goop.
5)with the pliars still firmly on the coolant line, begin to twist and pull and ease the coolant line off. (theres liquid in there so it has some suction) after you pull it out, some coolant should spill but no biggy. (because you lined it with towels!) if you feel neccessary, plug the coolant line so that nothing spills. (i just made the hose face upward so gravity kept coolant in.)
6) repeat step 5 for the other coolant line.
7)now that you have the IACV out, take out your tray,WD40, toothbrush, icepick, a couple of Q-tips(i only used 3), and a paper towel.
8)take out the black rubber 8 ring
9)put your IACV in the tray, spray that sucker with your cleaner and brush away. make sure you get everything you can with the toothbrush. use your Qtip to get into the areas your toothbrush cant get to.
10) spray into the holes with your cleaner and have it very runny, you'll notice a lot of black stuff coming out.
11) repeat 8/9 if you see any build up still running out.
12) turn your IACV hole-side down, and swing it a few times to airdry as much as u can
13) wipe into the holes/screen with papertowel or w/e and dry it more
14)use your air compressor now on the filter side and let it run, your cleaner should come out on the filter side. just have a towel absorb it. after a couple minutes, use a fresh Qtip and dry the screen one last time
15) let it sit with hole side down to dry for a bit. (i let it sit for 2 hours)
16)go back to your car and re-assemble.
17) drive your car and you should notice a difference if it was gunky before.

TO COME:::
Throttlebody cleaning (quick one without removing the throttle body)
FITV-maybe

hehe i gotta get started on HW, if im done early ill do the other two.. i took pics of everything.

Good luck if you're gonna tackle this easy job, since it was my first time it took me an hour of actual work. (was like 3-4hours total including dry time)
Old 10-01-2007, 03:11 AM
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Default Re: Throttle Body related maintenance- DIY write-up (dagle)

Thanks for the writeup. Good to know.
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