Temp Gauge Behavior

[BRIAN O'NEILL]

with the a/c on in the summer the fan is running all
the time-cooling the coolant-keeping the car
cooler.and the same in the winter, you have the heater
on, where does that heat come from?? from the hot
coolant, so your heater is acting the same as your
cooling fan, pulling heat from the engine !!!!!

                             brian o'
p.s., what part of philly are you in ??????? im close
to pittsburgh and its about 15 deg. here now !!!!

--- "Martin W. N. Suryadarma"
<msuryadarma at mail.wesleyan.edu> wrote:
> Hi everyone,
> 
> I have a question that has been bothering me for a
> while. My car is 1989
> Audi 100
> 
> In the summer, my engine temp usually goes up to the
> middle line and the
> fan will kick in. It stays around the middle during
> city driving. If I go
> to highway, it can go down to the line before the
> middle one. BUT, if I
> have air conditioner running, the temp will never go
> as high as to the
> middle line. It seems that the air conditioner makes
> the engine run
> cooler, which doesn't make sense
> 
> Now in the winter, the same thing happens. During
> city driving it gets to
> the middle, then fan kicks in. Of course, I'm in
> Philly, so it's not that
> cold yet here. BUT I just noticed, if I have the
> heater on, the temp is
> really low, it's only around the 1/4 mark, and
> doesn't move up during the
> same driving condition. 
> 
> So does a/c and heater running make the engine run
> cooler? Or radiator is
> cooler? No right? BTW the car runs fine with no
> problem, it's just weird
> to see the temp gauge behave like that.
> 
> Thank you.
> 
> 
> Martin
> 
> 


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