gm idle valve

[elcamino73]

I believe that for carbon and the like that carb cleaner is much more suited
to the job. I don't believe that  brake cleaner is more aggressive. (Check
the contents out on the back of the cans) I'll use it when just the opposite
results are desired



    ---- Original Message -----
From: "Bernd Felsche" <bernie at innovative.iinet.net.au>
To: <diy_efi at diy-efi.org>
Sent: Friday, December 07, 2001 9:37 AM
Subject: Re: gm idle valve


> Peter Gargano tapped away at the keyboard with:
>
> > Ludis Langens wrote:
> > >
> > > It is a stepper motor.
>
> > I've often wondered what the correct procedure for re-lubricating
> > these Idle Air Conttrol (IAC) valves is? I've recently had two get
> > "sticky" and I've just swapped them for newer ones, rather than
> > cleaning and lubing. Anyone got some well tried tips?
>
> I've had the idle stabilizer in my Golf (it's an oscillating type)
> out once every year of so for cleaning - after buying a replacement
> after two year ($450!!). So I thought it worthwhile to try to keep
> it clean. The replacement valve has held up now for about 8 years.
>
> First of all; clean the bugger. A good soaking in carby cleaner.
> (Some people say brake cleaner is better; it might clean faster but
> seems way too agressive.) Send an apprentice down to the corner shop
> and buy a Magnum Classic icecream.  Enjoy.
>
> Then use the paddle to scrape away any deposits that remain in the
> valve and flush again. A few drops of engine oil on the valve
> certainly won't hurt. Just a few.  Too much oil will attract all
> sorts of buildup.
>
> I'm trying a secret formulation that supposedly works better than
> engine oil and doesn't develop into a sticky surface in a short time.
> It's NOT silicone-based, or PTFE. I'll see what it's like in another
> few months.
> --------------------------------------------------------------------------
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