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re: OT mechanics - a/c question - Air only blows when driving at speed not idling

Posted on 4/7/15 at 2:22 pm to
Posted by CptBengal
BR Baby
Member since Dec 2007
71661 posts
Posted on 4/7/15 at 2:22 pm to
the compressor clutch is going.
Posted by The Mick
Member since Oct 2010
43341 posts
Posted on 4/7/15 at 2:23 pm to
quote:

the compressor clutch is going
How difficult is that to replace yourself?
Posted by Jimbeaux
Member since Sep 2003
20202 posts
Posted on 4/7/15 at 2:32 pm to
quote:

Still cold when idling but barely any air blowing out

quote:

the compressor clutch is going.


Not this, if it's still cold.

What kind of vehicle? Sounds like the baffle on the air control diverter is going out. In some vehicles, the diverter is controlled by a vacuum line. You could have a small leak in a vacuum hose which would still be able to function at higher rpm's pulling a stronger vacuum.

Do a google search on your year/make/model and include a/c blower problems and see what you may find. Could be an easy fix.
Posted by KG6
Member since Aug 2009
10920 posts
Posted on 4/7/15 at 3:42 pm to
quote:

the compressor clutch is going.


This is the answer if the air is only cold when driving at speed. But that doesn't appear to be the problem. This is a fan issue. Probably better for the OP. I think when my compressor went out like this on my Silverado in college, it was over 2k to repair. I ended up just selling the truck.
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