Ambient air temperature? - Chevy and GMC Duramax Diesel Forum
2011-2016 (Non Powertrain) Discussion of 2011-2016 topics not related to powertrain

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post #1 of 4 (permalink) Old 11-08-2019, 03:51 PM Thread Starter
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Ambient air temperature?

My ambient air temperature doesn’t change sometimes. It will stay at the mornings temp instead of increase with the day. Does that affect anything?

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post #2 of 4 (permalink) Old 11-08-2019, 07:06 PM
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The one telling you outside temp? Pretty sure its just convienence so shouldnt affect a thing. Quick call to the service shop would probably be able to answer that though as well.

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post #3 of 4 (permalink) Old 11-08-2019, 11:35 PM
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Mine works great but in the winter I know when I started putting a piece of insulation covering my trans cooler in the front lower bumper hole my temp gauge for outside is all mess up shows it is +20 out when it is like -20 to -30 out. But soon as I take that piece out it is back working bang on. 🤔

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post #4 of 4 (permalink) Old 11-09-2019, 12:37 AM
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If you are scanning the IAT then it is important that it give a reasonable reading but if you are just looking at the A/C then it hardly matters except it may affect the way the heater works.
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