Question about 1993 Honda Prelude

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My idle on my '93 honda prelude goes up and down when in park after driving the car for a while--is there any way I can repair this w/o buying a new idle control valve?

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It may be possible to remove the IAC and clean it with good results. Remove the IAC and spray it down with carb clean, making sure to clean the interior of the motor - don't be shy with the spray, but try not to shoot it into the electrical harness connector. Don't try to wipe the inside - you may damage the motor which would be bad. I would have a couple cans handy - the better you clean it out the better your chance of success. This may not work but it certainly is worth the try, as the cleaner is cheaper than a new IAC. After you've given it a good soaking, blow it out with air to dry it. re-install and try it out. Staring fluid would work well too - it's ether based which dries really fast and does a good job cleaning.
Good luck!!

Posted on Nov 08, 2010

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Posted on Jan 02, 2017

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