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Discussion Starter · #1 ·
I have a 2005 Silverado/Duramax that has started blowing hot air on the dirvers side yet the passenger side is blowing cold AC air.

Turn it of, restart and it blows cold air like normal?

It has blow the hot air three times in the last 2 weeks.

The dealer recalibrated the temp controls but its done it twice since they did that.

Any ideas what is causing this?
 

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