4KQ - No heat but car runs hot...

[Bill Phelps]

Coolant was changed this fall with 50/50 Pentosin/water mix. I have never
really checked it specifically, however..

-----Original Message-----
From: Roa, Greg [mailto:Greg.Roa at Cinergy.COM]
Sent: Thursday, January 23, 2003 1:14 PM
To: quattro at audifans.com; wphelps at rizzo.com
Subject: RE: 4KQ - No heat but car runs hot...


Sounds like the coolant in either your radiator, or your lower hose is
frozen.  Have you been topping off your coolant with water?

Happened to me last year.  Had a weeping leak from the heater core for a
year or so.  Had been adding a cup or two of water every month or so.
(yeah, I'm an idiot)

First day it got into the negative temps, my lower radiator hose froze
solid.  Did exactly the same thing yours did.

I pulled mine in the garage, aimed a heater at the frozen area, and was on
my way in a half hour.  (after adding some antifreeze....)

I wouldn't think it is a thermostat problem if the top hose has heat in it.
If the thermostat was stuck closed, I think it would still be cold.

Good Luck!
Greg Roa
Cincinnati, OH
86' 4kcsq
93' 90 CS
83' 944

>From: Bill Phelps <wphelps at rizzo.com>
>To: "'quattro at audifans.com'" <quattro at audifans.com>
>Subject: 4KQ - No heat but car runs hot...
>Date: Thu, 23 Jan 2003 08:35:01 -0500
>
>This message is in MIME format. Since your mail reader does not
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>Started my 87 4KQ this morning to let it warm up (-5F brrrrr). Got in
>about 5 mins later and no heat, temp gauge a bit above half way.. Drove
>about 1/2 mile and realized something was not right, turned around and
>headed for home. Pulled in driveway and steam appears from drivers side
>of hood. Temp gauge nearing the top now, but the light did not come
>on...  Turn off the car and open the hood. It would appear that the
>saftey release in the cap had popped and sprayed a bit of coolant out..
>Upper radiator hose was smokin', lower hose was ice cold....
>
>Thermostat? It was changed this fall when I did the turbo conversion,
>and has worked so far...
>
>My question is what is the coolant flow direction. Does it go from the
>water pump into the lower hose and out the top or the other way around?
>
>I also suspect the radiator which looks pretty scary...
>
>Thanks in advance
>
>Bill.