ac/heater problem - JeepForum.com

 
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post #1 of 5 Old 11-10-2007, 01:24 AM Thread Starter
joe86
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ac/heater problem

my ac/heater is acting weird and i cant find the problem. heater and ac works but it just stays on the window defrost setting. when i move the lever (to heat,vent, bi-lev, etc.) it just stays on defrost. i pulled the control panel out and took everythin apart thinkin it was a bad electrical connection or sumthin but everythin looked good. could my puddle jumpin last weekend caused this even tho this problem started about 2 days ago?

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post #2 of 5 Old 11-10-2007, 02:21 AM
balloo93
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Check the vacuum bulb behind the bumper. Make sure the lines are tight on it. Trace the lines up and feel for damage to them.

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post #3 of 5 Old 11-10-2007, 07:24 AM
rstarch345
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If you don't find any problems with the vacuum lines, check the operation of the blend door under the dash. It uses a vacuum actuator and they can go bad.

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post #4 of 5 Old 11-10-2007, 07:27 PM Thread Starter
joe86
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thanks guys. ill check those right now
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post #5 of 5 Old 11-10-2007, 10:44 PM
jersey_jim
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i had the same problem, on the vac line that goes into the firewall... on that T connector, the line that came off the bottem and went into the firwall, if it was pushed onto the T connector too much it woldnt work, if i pulled it down a bit, the heater/ A/C worked fine on all the settings.

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