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Old 08-06-2010, 09:02 PM
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svxfiles svxfiles is offline
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Join Date: Dec 2001
Location: Wiley Ford WV
Posts: 8,650
Significant Technical Input Registered SVX
Re: Finally picked up my 96 SVX. Temp gauge moves around a little.

Quote:
Originally Posted by Huskymaniac View Post
You are assuming I can fit my fat a$$ under the car! I don't have a lift and jacks make me nervous. Have you ever heard of this dead zone in the gauge?!?!?! It is due to a zener diode which clamps voltage in a circuit. If the resistance of the sender creeps up, one may never get to that dead zone. If that is it, I will feel stupid about replacing a perfectly good tstat and flushing the radiator. Oh well, I guess I now know that I have a nice clean and well functioning cooling system...I hope.
Its under the intake manifold, on TOP of the engine.
However the $20.00 is now a thing of the past.
www.subaruparts.com lists it for $33.43 PLUS SHIPPING!
21203AA030 Temperature Sensor $43.87 list, $33.43

As far as the dead zone in the gauge, yes.
In 1995 Subaru went to a digital dash display in their high end units, and long time Subaru owners worried that the engines were running hot, as the display at normal warmed up temperatures was above the middle of the gauge.
Subaru's solution?
Have the dealership's service install a small resistor to the gauge to make it read lower.
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