[urq] odd temp behavior

[Wylie Bean]

Sounds like it might be flaky gauge behavior instead of actual coolant temp.  My 79 924 used to do strange things like that and that was back in 1988.  I'd check the actual temperature and then start looking at wiring.
Wylie Bean
90 cq
91 90q20v
92 UrS4
08 Q7

-----Original Message-----
From: "Mike Sylvester" <mike at urq20v.com>
Sender: urq-bounces at audifans.com
Date: Tue, 28 Feb 2012 07:29:19 
To: urq Audifans<urq at audifans.com>
Subject: [urq] odd temp behavior

With the mild weather we've had here in NE, I've driven the urq a few
times.
I've noticed that engine temperature has been abnormally high, which
seemed odd since the outside air temp was in the 30's.

The strangest part is that the engine temp only goes high if I have the
heat in the hot position.  If I move it to cold, the engine temp will
drop back to normal after a few minutes.

This seems completely counter-intuitive.  How can allowing coolant to
flow through the heater core cause the engine temp to rise?
Is is as if it ceases to flow through the radiator when the heater valve
is open.


Mike




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