2002 Trailblazer AC Goes Out When Vehicle Warms Up

Asked by Mully1 Jun 17, 2018 at 10:13 PM about the 2002 Chevrolet Trailblazer LS RWD

Question type: Maintenance & Repair

My 2002 Trailblazer's AC will go out when the engine warms up.  This happen
during the day when it heats up over 80 outside.  I have not noticed it
happening in the morning or at night.

1 Answer
11,555

FJ4072 answered 6 years ago

Make sure you have coolant in your reservoir, and that your engine temp isn't too hot. Need a cheap scanner to see what the real temp is. The AC pump has a thermal switch that will shut it down if it gets too hot.

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