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Low heat

(2005 Cadillac DeVille)
in Lewiston, MI on April 22, 2011
The outside temp reads 140. I have to turn the heat all the way up to get any heat in the car,I BELIVE THIS IS CAUSED THE OUTSIDE TEMPERATURE SENSOR. Could someone please tell me if this could be true and how to find and change it?
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Popular Answer
on April 22, 2011
You are probably correct in assuming that the outside temperature reading of 140 on your 2005 Cadillac DeVille is affecting the heater operation. The outside temperature sensor is mounted in front of the ac condenser on one of the support braces. If the wiring to the sensor looks OK it may be worth while to replace the sensor and see what happens before spending a lot of time trying to diagnose the problem.
on April 22, 2011
Thanks for advice will give it a try.
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