[Shotimes] Re: Idle Speed Controller Question

[Carl Prochilo]

Shotimes is really starting to show it is unreliable for communication
purposes.  Geesh.  I responded to Leigh yesterday.
-- 
Cheers,
Carl Prochilo
92 Ultra Red Crimson

On Mon, January 17, 2005 2:21 pm, Leigh Smith said:
> Carl;
> Also check to see if the AC compressor may be failing / binding up.
> My 89 had an idle problem for 2 years that even a new ISC wouldn't help.
> Sporadic unstable idle / even to the point of stalling.
> Until the compressor blew and a new one fixed the idle problem.
> Just turn the climate control head to OFF and see if the problem goes
> away.
> An ECM self-test should identify a sticking ISC, but not a compressor.
> Lee
> ----- Original Message -----
> From: "Carl Prochilo" <gr8sho@prochilo.myserver.org>
> To: <shotimes@autox.team.net>; <TechSHO@topica.com>
> Sent: Monday, January 17, 2005 12:42 PM
> Subject: Re: [Shotimes] Re: Idle Speed Controller Question
>
>
>> Yes, IAB.  I was looking at Autozone website at the time.  Seems to have
>> a
>> lot of different names.
>>
>> My car seems to struggle now to hold a steady idle.  It has been
>> developing slowly over that past few months but not to the point of
>> stalling (yet).  At this point the idle will drop down to 600
>> momentarily
>> before it bops up, and the low oil pressure light will come on.  Part of
>> the problem was masked by the LPM since it bumps the idle up slightly,
>> and
>> now I've removed the LPM from the PCM.
>>
>> I was hoping cleaning the intake would cure the problem, but in fact I
>> neglected to clean the IAB while I had it off.  Is it just a matter of
>> pulling the part and spraying Berryman's in there?  I already know that
>> the lower screw is going to be a problem, so I may just pull the intake
>> off again to do it.
>> --
>> Cheers,
>> Carl Prochilo
>> 92 Ultra Red Crimson
>>
>> On Mon, January 17, 2005 10:21 am, Donald Mallinson said:
>> > Carl,
>> >
>> > You mean the Idle Air Bypass valve (IAB)?  I think that is
>> > what it usually is called.
>> >
>> > Symptoms are the car dies when you come to a stop and put in
>> > the clutch, especially after a highway run, like an exit
>> > ramp with a stop sign.
>> >
>> > ATX cars can develope a nasty rattling sound although the
>> > car will still idle, but not well.  Open the air cleaner and
>> > the rattle will be LOUD and that is usually the IAB.
>> >
>> > It can be cleaned with good results, certainly Performance
>> > Plus has been cleaning them on MTX cars since 1992 or so
>> > with good results.  Takes a few minutes, and if it doesn't
>> > work, then they replace it.
>> >
>> > I think the one on the ATX cars is different and usually it
>> > gets replaced.
>> >
>> > Don Mallinson
>> >
>> > Carl Prochilo wrote:
>> >> What are the symptoms of a failing ISC?
>> >>
>> >> Also, cleaning of the ISC is usually not considered to be effective,
> but
>> >> the part is cheap enough to just replace.  True?
>> >>
>> >> The ISC in question is from said 92 and is original (214K miles).
>> >> ====
>> >> Cheers,
>> >> Carl Prochilo
>> >> 1992 Ultra Red Crimson
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