1. Autos

Your suggestion is on its way!

An email with a link to:

http://autorepair.about.com/library/faqs/bl598d.htm

was emailed to:

Thanks for sharing About.com with others!

Questions and Answers

Chevy Blazer A/C Blows Warm

Q. I bought a 1993 4-wheel drive Blazer off my brother. It has a 4.3 liter engine and all the goodies and 133,000 miles. He had a private shop replace the A/C compressor and belt in July. It hasn't worked right since. I live in a different state and don't want to take it back.

Chevy Blazer A/C Blows Warm

I didn't know the A/C didn't work properly because it took me a month to get it to start when hot. Now it runs well, but in SC we need air. The problem sounds simple. It runs cold as long as I am giving it gas but when I let up or go down a hill it starts blowing warm air. If I am running along with the cruise and it is level, there is no cold air.

If I put it in neutral and gun it, it turns cold but just briefly before it goes back to blowing warm air. The only other thing I have noticed is that when I start it, it blows out such humid air, even on a non humid day, that it fogs up my glasses.

Thanks for any help.
Samuel

A. You need to check to see if the A/C compressor cuts off or is even running when it happens. Could be a clogged orifice tube from the first A/C compressor failing. Could be something electrical if the compressor shuts off. The fogging may be due to a clogged drain from the evaporator. When it runs, does it drip water under the car? If so, it's working.

Additional Information provided courtesy of ALLDATA

Back to Index
You can opt-out at any time. Please refer to our privacy policy for contact information.

©2014 About.com. All rights reserved.