heater - JeepForum.com

 
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post #1 of 5 Old 09-07-2013, 07:15 PM Thread Starter
bear1960
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Join Date: Sep 2013
Location: pawcatuck
Posts: 4
heater

My heater was working great but now it only shoots heat out of the defrost vents. Nothing comes out of the floor or the vents on the dash. I have no idea whats going on. I can flip through every setting and it always shoots out of the defrost vents. Any ideas.

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post #2 of 5 Old 09-07-2013, 07:31 PM
hpservertech
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1994 ZJ 
 
Join Date: Sep 2013
Location: St. Louis
Posts: 24
Had the same problem. Replaced the temp control and problem was solved. It is either that or you have a vacuum leak.
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post #3 of 5 Old 09-07-2013, 08:33 PM
JasonStebbins
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1997 ZJ 
 
Join Date: Jan 2009
Posts: 3,138
Do you have digital or analog climate control?

Most likely a vacuum leak under the hood. Especially check the "T" near the firewall.

Poop
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post #4 of 5 Old 09-13-2013, 06:30 PM Thread Starter
bear1960
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Location: pawcatuck
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vacuum leak near firewall plastic tube broken now switches from dash or heat to defrost under power acceleration then back when let off gas
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post #5 of 5 Old 09-15-2013, 07:08 AM
congerz83
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1996 ZJ 
 
Join Date: Jun 2011
Location: Congers
Posts: 372
Same problem and solutions found here


http://www.jeepforum.com/forum/f13/h...ation-1458659/
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