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2013 Chevrolet Suburban
Platform: GMT 400, 800, 900

Are there 2 ambient temp sensors for 2012 suburban?

Old June 7th, 2019, 9:28 AM
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Default Are there 2 ambient temp sensors for 2012 suburban?

I'm getting the blinking 3 times AC light. A lot I've read says that it's the ambient air temp sensor saying it's too cold.
My dash air temp reads fine. I took off the one in front grille and my dash temp went away, I out it back and I get the dash temp again.
So There's either two temp sensors or the the blinking light is a different thing.
I saw somewhere else there there is a second ambient air temp sensor. I can't find it if there is one.

Does anyone know if there are two? and where the one that controls the AC located?

Jim
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Old June 7th, 2019, 9:46 AM
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No. There is only one ambient temp sensor. Typically, if your A/C light blinks, the system is low on freon.
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Old June 7th, 2019, 11:18 AM
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Yesh.. The freon was low. Lets hope it's just a small leak.....
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