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Sounds like motor running under dash

Tiny
TRUMP88
  • MEMBER
  • 2005 CHRYSLER 300
  • 75,000 MILES
I am getting no heat, ac works fine. I ran the diagnostic check it gave me code 31 which is the Evaporator Temperature Sensor let me know if I need to change this sensor. Also I keep hearing a motor running underneath the dash when the car is not running is this related to the sensor.
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Saturday, October 15th, 2011 AT 5:08 PM

5 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Is your HVAC system automatic or manual?

It could be a faulty sensor or with the wiring system so you need to perform test to confirm.

The running motor could be related to this problem or it could be something else.
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Saturday, October 15th, 2011 AT 8:09 PM
Tiny
TRUMP88
  • MEMBER
  • 11 POSTS
I have a manual system.
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Saturday, October 15th, 2011 AT 9:00 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Would you be able to perform testings if the information is available?

You would need a DVOM for this.
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Saturday, October 15th, 2011 AT 9:24 PM
Tiny
TRUMP88
  • MEMBER
  • 11 POSTS
What is a DVOM?
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Saturday, October 15th, 2011 AT 9:26 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Digital Volt Ohm Meter.
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Saturday, October 15th, 2011 AT 9:30 PM

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