[Shotimes] Overheat - Part II

[Chris "Zap"]

    I think if you can get a temp reading, that would be the best method.
However, I'm curious if the temp gauge is fluctuating or if it stays steady.
If it's actually moving, it might be a thermostat getting stuck (I've seen
this on the Sable that we have, but on the SHOs, the t-stats seem to fail
open, generally, but still stick).  What type of thermostat do you have in
there, anyway?  In both SHOs, if there is any cooling issue, it generally
seems that on the freeway they are cooler due to wind.

    As far as the WP, the SHO pumps are very sturdy (took a look at the old
one off my '95 when I changed it out during the 60k).  They have a nice
metal impeller, and I would gather the bearings would go south before the
pump would stop working, generally.  Good luck getting your problem fixed,
and if you need a hand let me know.  I'll be around for most of the weekend.

-Chris



----- Original Message ----- 
From: "Kenneth Epperly" <epperly1@optonline.net>
To: <shotimes@autox.team.net>
Sent: Thursday, July 29, 2004 7:11 PM
Subject: Re: [Shotimes] Overheat - Part II


> Try taking temp readings at the thermostat housing with a good temp probe
> contact or non contact type and see if it is that high. I know of some
cars
> where the impeller in the water pump would slip and not flow enough water,
> but have not heard it happen to a SHO. Was the radiator cap tested?
>         Ken
> ----- Original Message ----- 
> From: "Steve Tatro" <stevetatro_shotimes@earthlink.net>
> To: <shotimes@autox.team.net>
> Sent: Thursday, July 29, 2004 6:54 PM
> Subject: [Shotimes] Overheat - Part II
>
>
> > Thanks to everyone who responded with advice.  I had the system pressure
> tested, everything there was fine.  I also had a pressure test done on the
> block, at least that's what they told me, and there's apparently no head
> gasket problem.  Sort of what I expected since it seems HG failures are so
> rare on the SHO.  For the heck of it I paid them the exhorbitant amount
they
> demanded to do a chemical flush/refill of my coolant system.
> >
> > On the way home, same thing.  Temperature goes waaay up to the "N" in
> NORMAL, even a bit past a couple of times.  This was on the highway going
> anywhere from 65 to 80 mph.  It seemed to help a *bit* if I made sure to
get
> in some clean air instead of "drafting" the car in front of me, but not
> much.  What did help (and kept me from overheating) was switching the EATC
> to FLOOR and turning the heat all the way up.
> >
> > Does any of this help anyone make a long-distance guess as to the
problem?
> Theoretically the car shouldn't even need a cooling fan at that speed,
> right?  So I should be able to cross that off the list.  Besides, even
> putting the EATC in full AUTO didn't help, even though it forces the fan
on
> (AFAIK).
> >
> > I guess there are three things I can think of: thermostat, radiator,
water
> pump.  Thermostat replaced a couple of years ago, radiator about 5 years
old
> (but always with plenty of fresh green coolant), water pump about 2 years
> old (went bye-bye suddenly one day).
> >
> > Ideas?  I appreciate it.
> >
> > Steve Tatro
> > Red/Black '93 with 178k miles
> > Monroe, Ohio
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