How To: Clean IAC Valve (smoothes out rough idle) - Page 2 - Honda Prelude Forum

khilgers · 03-20-2003, 12:25 PM

Quote:

Originally posted by fmshaw1971
I did this last night. It took all of 20 minutes at the most. He is right, there is not much room for a socket, but fortunately I had a new set of wrenches I got with a gift cert. Mine wasn't very dirty even with 96k miles, but I cleaned it with some nitro cleaner and it seems to run a little more smoothly.

if yours weren't that dirty at 96K i can probably hold off doing it for a while since I have only 40K

DudewithaLude · 03-20-2003, 12:28 PM

I wouldn't do this unless you have a problem with a rough idle. only reason i did it was b/c my intake manifold was almost off (with the exception of two damn bolts that i couldn't reach

)

axion68 · 03-20-2003, 12:34 PM

I would only reccomend doing this if you are having idle problems, if you aren't having any problems chances are your IAC is plenty clean.

khilgers · 03-20-2003, 12:41 PM

thanks guys, but if I do have problems I know where to look

Hawks10 · 03-20-2003, 11:51 PM

is brake cleaner ok? and then can you flush it with water as long as you let it dry out before reinstalling?

Hawks10 · 03-21-2003, 12:51 AM

OK...it is 2am and I was out working on my car!!! Fun times, anyway, I took it off (2 minuites) cleaned it with water and some brake cleaner and you shoulda seen how much black sh*t came off/out!!! I have 75k btw, I will reinstall and tell you how it feels in the morning!

h22a193 · 03-29-2003, 04:46 PM

ok well, I just got through cleaning mine. I cleaned it with electrical cleaner, and a brush. I also used some new gasket seal on the bottom plate, where the coolant lines go. Works great now.

DEFCONShupaLude · 05-21-2003, 05:19 PM

does this help the AC idle as well? or is that a whole different topic? cause my regular idle is perfectly fine til i turn on AC, then it bounces 500-1000

DEFCONShupaLude · 05-21-2003, 07:10 PM

FAQ this, it worked wonders

thanks obrigado for point it out to me. and thanks Jake for the write up. oh man, love the idle now

i used water/swabs, oh man, so much dirt, i mean, there was no gunk at all, the grill was black... o just swirled the wet swab, cleaned it with a dry one, oh man... 1000000x better

obrigado · 05-21-2003, 07:13 PM

Awesome man, glad to hear that it fixed your problem. I think the extra stress the AC puts on the idle system was just bringing out the problem.

concLude · 05-21-2003, 08:55 PM

did this ever make it to the FAQ?

Fast&furiuslude · 05-21-2003, 09:10 PM

Hawks is it any faster feeling

calilude98 · 08-17-2003, 01:11 PM

I just cleaned this valve. The results were better than I thought! I mileage was 72717. This dropped my idle rpms from 1100 to 700. Throttle response is better and there's no more idle bounce. Great write up!

vipastyle · 11-11-2003, 03:39 PM

FAQ'd.