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Old 10-02-2006, 10:04 PM   #5
kna4977
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Join Date: Jul 2006
Location: Midlothian TX
Posts: 522
Re: 72 A/c Air Conditioning Troubleshooting

Quote:
Originally Posted by mrein3 View Post
LOTS of people take the vacuum controlled valve out and put an in-line, manual one in. That works the best but on a day like today here in MN I had my heat on going to work and the air on going home. The vacuum controlled one is better for that.
Do you have the factory vacuum pod that bolts to the ac box on the outside of the firewall? Is it broken? I had a car once that had a leak in that pod. It behaved like you describe. Colder with more vacuum. Almost hot without.

A POA system always has the compressor engaged with the AC on.

I think if you solve the vacuum issues you'll get cold air from all vents.

Did you get your fan speeds all squared away?
Fan speeds ok. Where and how do I get a manual valve?
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