-40 outside - Dodge Cummins Diesel Forum
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post #1 of 7 (permalink) Old 05-23-2019, 10:22 AM Thread Starter
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-40 outside

Got in the truck this morning and yeah it was raining but when I turned the truck on the outside temp said -40. Not that big of a deal but anyone had this happen.

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post #2 of 7 (permalink) Old 05-23-2019, 10:51 AM
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Probably moisture in the sensor connector. I would pull the connector and put some dielectric grease in it.

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post #3 of 7 (permalink) Old 05-23-2019, 10:53 AM
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I take it it wasn’t -40 outside? Probably just a glitch
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post #4 of 7 (permalink) Old 05-23-2019, 02:10 PM Thread Starter
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No it wasn't -40. Another dumb question where is the sensor connector located. Thanks
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post #5 of 7 (permalink) Old 05-23-2019, 03:00 PM
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Quote:
Originally Posted by Mudstoy View Post
No it wasn't -40. Another dumb question where is the sensor connector located. Thanks
Towards the bottom of the driver side mirror arm. -40 is the default for a faulty sensor or wiring/connection.
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post #6 of 7 (permalink) Old 05-23-2019, 08:13 PM
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I have had that issue twice, and it really screws with the auto climate too. If the issue persists your dealer will have to replace the sensor.

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post #7 of 7 (permalink) Old 05-23-2019, 08:46 PM Thread Starter
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After looking it is the sensor. I checked rock auto and the have the back piece but not the sensor. Is there any place to buy it other then the the dealer. Thanks
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