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Discussion Starter · #1 ·
Just bought the jeep and when i am switching the heat from Heat to Vent all air stops coming out of any of the vents...Any thoughts on what this could be??

Thanks
 

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The vent/defrost/heat settings are vacuum controlled. Perhaps the hose which controls the heat setting is cracked or slipped off.
 

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im pretty sure thats suppose to happen. the 'vent' option is used just to let fresh air in through the cowl vent on the hood. if you look in the 'YJ Guide' sticky thread towards the top of the YJ forum page their is a link for the YJ heating system.
 
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