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Re: Option #2 Posted by Justin VanAbrahams [Email] ![]() ![]() In Reply to: Option #2, thor-in-2004, Wed, 5 Oct 2005 12:16:49 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Rather than water, ATF is a good way to go. ATF has a number of detergents in it, and it will thoroughly clean the combustion chambers. Pull off one of the vacuum hoses on the intake manifold and let the engine suck in a pint or so of ATF while idling. You must restrict how much ATF is ingested at a time or you can hydrolock the engine. Idle will dip down when there is too much ATF in the cylinders.
That said, I strongly recommend GM Top Engine Cleaner, available for $15 at any GM parts shop, such as a dealer. It's a spray that you shoot into the throttlebody that does a fantastic job of cleaning everything it comes in contact with, and a big advantage here is that the release is controlled, and you don't risk locking the engine up. I've used it on several cars with truly amazing results.
Be aware: Anything the engine sucks in has gotta come out, and both ATF and Top Engine Cleaner will make enormous clouds of smoke from your tailpipe. Don't do it where there are people around - at least not people you'd like to remain friends with. Related, I can't speak for ATF, but the GM product is safe for turbos, O2 sensors, and catalytic converters. It's the router I recommend - and what I'm doing this weekend on my '87 (as soon as I find an abandoned parking lot :).
-Justin
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