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Old 07-08-2010, 08:57 AM   #1
Join Date: Jul 2010
Location: Ponca City, OK
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Cool Air Conditioner Blower Problems

Good morning...

I have a 2003 Wrangler SE and a problem with the A/C blower.

Specifically, whatever I select for air, the air may or may not come out those vents. If the selection is for "Face", it usually continues out toward the feet, or sometimes through the defroster vent. EVENTUALLY it may come out the top of the dashboard vents....or not.

The local Jeep dealer keeps blaming it on vacuum hoses and over a year or so period replaced nearly all of them. I've owned a lot of cars and NEVER remember replacing vacuum hoses, but in a 2003 Jeep Wrangler, it seems to be an epidemic.

Oh, the A/C and all works fine, just won't blow the air where I want it.

Anyone else have this problem? Anyone have a solution?

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Old 07-08-2010, 09:16 AM   #2
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Hey and welcome to the forum, have you tried exchanging the vacuum lines around yet? It sounds like they have been swapped around. And you may want to check the diaphrams themselves they may have a crack in them.

2008 Sahara Unlimited
with alot of stuff...OIIIIIO
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Old 07-08-2010, 09:21 AM   #3
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Ditto on vac lines, as I think they drive the vents..
Loose one, a hole/leak in one, misplaced one.

Either that or a mechanical linkage is slipping in the dash.
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Old 07-08-2010, 10:00 AM   #4
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Could the switch itself be defective?
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Old 07-08-2010, 10:12 AM   #5
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My 02 tj does the same thing but it always ends up working eventually i just deal with it

"Put your seatbelt on i wanna try somethin"

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Old 07-08-2010, 10:35 AM   #6
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I had the same problem. The air would only come out the defrost vents up by the windshield. I researched the problem on WF and found that a vacuum line that was attached to the engine was off and therefore not creating the vacuum that was needed for the switches to operate. It took me about 10 15 min to locate the correct hoses and once i found the hose it took me a few more min to figure out where it attached. I have an 05 TJ sport, the place it attached to the engine was on the drivers side, half way back on the engine, close to the valve covers. I hope that helps you out, good luck.
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Old 07-08-2010, 09:37 PM   #7
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Thanks, all. Sound unanimous--check the vac lines. Maybe the local dealer knew what he was talking is just a never ending problem---a lot of vac hoses.

Bulletproof. I hear ya...I've just grown tired of it and cannot believe that as simple as the system is that it won't work.

PTaylor. Thought that also, but the only direction that doesn't work is "Face" and my thought is that if it was the switch, nothing would work.

Thanks again, folks, appreciate your input.
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Old 07-11-2010, 12:29 PM   #8
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Same Problem on mine, checked the hoses, now looking at the switch0.
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Old 07-12-2010, 07:28 AM   #9
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Try this.

I found the vacuum lines located in the back of the engine compartment, along the top. The line is a very skinny hose (pencil lead size) with attachments along the way. In tracing the line, I discovered that on the passenger side, what appears to be the "end of the line" was just hanging there, not attached to anything. After combing the area and not finding any open ports and the fact that the rubber end was split, I concluded that the line was just "attached" to a protruding bolt--something to stop the air leak. So, I experimented.

I put a screw in the open end and whadda-know, the A/C worked, AND the engine ran better. To insure it wasn't a fluke, I would turn off the AC, remove the screw...turn it on--nothing....reinsert the screw, turn it on--it worked........did this several times.

I taped the screw tightly into the end with electrician's tape and all is working fine.

This may not be correct, and it may be the 'redneck' way of doing it, but every time the local Jeep dealer replaced these hoses and re-attached it, it cost me $100. AND it works.

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