a/c blowing out defrost vents, rommie CRANKY HELP!!

korg70kbc · #1 (**permalink**) 07-12-2010, 08:49 PM

my roomie is in construction & his boss has a 7,3, could be a 6.0, anyhow, he came home tonite in a less then civil mood. He said that the a/c was only blowing thru the defrost vents & his boss could care less, I told him i had heard something similar & would check. a cool roomie is a happy roomie. Anyone know what this is & if so, is it easy to fix, cuz he is ADDICTED to a/c & I have to bear the wrath, which, usually comes from me:

being female & all

Any input is appricieated,

thanks,
LaURIE

**mudrunninpig** · #2 (**permalink**) 07-13-2010, 12:09 AM

you have a vacume leak somewhere or the vacume pump isnt working. first turn on the key and see if you hear the vacume pump working.

Tyler · #3 (**permalink**) 07-13-2010, 12:13 AM

If you don't know what the vacuum pump sounds like, when you switch the knob from defrost, to floor, or to vent, or max a/c you'll hear a hissing sound in the dash. If no sound, vacuum pump quit. If you do hear it, its got a leak somewhere, and good luck finding it lol

**Jarrod B** · #4 (**permalink**) 07-13-2010, 02:57 AM

Fugde, ill retye it later...

phone typing sucks

**Dave** · #5 (**permalink**) 07-13-2010, 03:21 AM

Is it 4wd ask him if the auto locking hubs work?

The leak is usually down there

korg70kbc · #6 (**permalink**) 07-13-2010, 07:45 AM

Ok, I will tell him, he isn't going to be happy if his a/c is out. He asked me cuz his boss/friend doesn't care if he is Hot

BUT he may care if it affects his 4wd or another system. thanks

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