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Discussion Starter · #1 ·
Need some help. Heat only blows through defrost (windshield) vent. Why? His do I fix it? Thanks for the help
 

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The windshield defrost vent is the "default" position for the system. It is found in this position if you have a vacuum leak somewhere in the system. Look for something that is disconnected under the dash or under the hood.

It could also be that your heater vent motor became disconnected from the vent door. This happened to me after I worked on my heater core once. It is accessed from the driver side immediately under and behind the radio.
 

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If it is a vacuum leak check under the fender well on the passenger side under the battery there is a line that runs to a computer and that seems to be the number one place that it will break.
 

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Discussion Starter · #4 ·
Thanks. I will check that ASAP! Sounds like easy fix, unless more than one vacuum hose dry rotted or disconnected!
 
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