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Old 09-15-2013, 04:54 PM   #1
Join Date: Aug 2012
Posts: 3
A/C vent problem

When I turn A/C on it blows out of defrost vents but will not blow out of front vents, anybody got any suggestions ?

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Old 09-15-2013, 04:59 PM   #2
Endoftheroad4x4's Avatar
Join Date: Jul 2013
Posts: 119
Originally Posted by JonW View Post
When I turn A/C on it blows out of defrost vents but will not blow out of front vents, anybody got any suggestions ?
Sure u have an a/c unit? Most tjs don't

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Old 09-15-2013, 05:13 PM   #3

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Location: Kansas
Posts: 1,512
You've got a vacuum problem, Read this thread Fan only blows out defrost Follow the diagram and check the 2 problem areas first, the elbow right below the throttle body on the intake, and the connection at the reservoir under the battery, lay behind the right front tire and look up along the frame for the hose connected to the vacuum reservoir make sure its on tight and no cracks
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Old 09-15-2013, 06:37 PM   #4
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Join Date: May 2013
Location: Columbia, SC
Posts: 126
One of the most asked a/c questions on the forum. Probably a vacuum leak but not a definite. If it's a vacuum leak it should be an easy fix.

I've replaced everything possible to replace on mine and the problem is not yet fixed. Vacuum canister, vacuum hoses, selector switch on dashboard, with no fix yet. The best I get is about 20-25% air flow from the dash vents. I think mine is a broken part in one of the actuators as I found a piece of worn black plastic that fell out from under the dashboard on the passenger side. I could not find where it went and gave up. Just living with the problem now.

Let us know if you find your vacuum leak. Good Luck
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