Air blows hot even though compressor cold, done this before, could be blend door, fix?

Asked by bigbluecat May 23, 2010 at 06:51 PM about the Dodge Intrepid

Question type: Maintenance & Repair

This happened last year and I ran my hand under the dash and got the air going and it worked well all summer. Now this summer, it started off blowing hot air then cold now for the last few weeks, hot only. The compressor and lines are cold so I know the coolant is ok. I ask at Advanced Auto and they "thought" it was the air blend. Any idea on how to fix?

LTPITT answered 12 years ago

My wifes 98 Grand prix had the same symptons even after I had changed to a new compressor and exspansion valve (nozzle). Though the A/C gauges said it was fully recharged it took a couple more cans of 134aR (and showed over charged on a/c gauges) to get it to really cool properly.

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robertwrench answered 12 years ago

check the heater control assembly or the servo or heater control valve. A good way to test it is to block off your heater core. Then drive it.

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