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> From: Michael Clark <mclark@wt.net>
> To: dakota <dakota@ait.fredonia.edu>
> Subject: hot while idleing
> Date: Tuesday, July 29, 1997 10:05 AM
>
> I've got a 180 thermostat which works great. The temp gauge is usually
> just a hair over the lowest mark by the "C". However I have noticed
> that if I set and idle the engine with the a/c on (in hot weather) the
> guage will rise, once it got just past the half way mark. I know that
> its normal for an engine to heat up in idleing conditions like stop and
> go traffic and such but should it get so hot so quick (about 10 min)?
> It also *seems* to be sporatic, next day I was in a parking lot waiting
> on someone for about 10 min. same conditions and outside temps, and the
> gauge *barely* moved at all. When it does this, when I hit the road it
> drops back to normal very quickly, I guess the air flow does this?
> Could my fan clutch be getting weak and not blowing enough air? I have
> just recently drained and flushed the cooling system, could my ratio of
> antifreeze/water make a differance? What about a hi-flow tstat? Oh,
> yeah, I do not have the heavy duty cooling option...
>
> Any thoughts, or should I even be concerned?
> --
> Michael Clark mike@snakebite.com
> '93 Mark III 4X2 V-8 SWB RC auto
> MP SBEC, K&N FIPK, Flowmaster cat-back dual
> Doug Thorley Headers (on order)
> http://userv.wt.net/~mclark/
>
The HD cooling helps a ton, as my '95 has it and my '91 didn't, and
I can speak from experience. The fact that under the same conditions it
has
acted differently, and the FACT that you 'just flushed your cooling system'
,
leads to possibility that you have a bad thermostat.
My mother in law just went through this... Flushed the system, every
thing was fine. We moved her 5th wheel 490 miles in the hot desert heat,
and
the thermostat froze up. Something about the crud in the system getting
sloshed
around, and causing a 'good' thermostat to fail. 115 F. outside temp,
$65.00 for
a 160 F. thermostat, 13 hrs., and 490 miles later we made it (2 weeks ago).
This was a FE-Or-d, but it happened on my '91 too. Anytime I flush a
system,
I take out the thermostat, and flush the entire thing until all the crude
comes out,
drain everything, then replace the thermostat.
Sam '95 SLT Dakota
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