Question about Cars & Trucks
Only my defrosters are not working. The vents and heat work fine and the blower is blowing hot air fine. It just won't blow through the defrosters. Any ideas? Thank you. P>.S. I Just did find a hose that is broken under the hood. Looks like it might have something to do with the defrosters as it is near that area. I tried to re-hook the hose up and it cracked as it is so dry rotted. Does anyone know what kind of hose it is that I need and if it will fix the problem? Also there is a place for another hose to be hooked up and there is no hose around. It looks like it comes out from where a filter is located. Thank you for your help and knowledge. It is appreciated!
Go to your friendly nieborhood auto parts store, you need a 1/8 inch rubber hose to repair that, commonly used for window washers also.
Posted on Nov 24, 2013
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Posted on Jan 02, 2017
These trucks have a problem where moisture builds up in the heater box then freezes. When this freezes and you change your heater settings it breaks the shaft for the blend door. If this is what happened you should be able to look under the dash above and to the right of the gas pedal and you will see two vaccuum accuators one of them you should be able to wiggle around the linkage if it is broke. To fix this you need to remove the entire dash to get the heater box out which involves discharging the AC and draining the coolant because the heater core and evaporator come out. Please rate.
Posted on Dec 13, 2008
common problem, check under dash by the gas pedal if control arms are muving went selecting from ac to heat cuz this it is the control for the vents to go from ac to heat and to defrost.
Posted on Feb 23, 2009
SOURCE: Air only blows to defrost
The problem is with the blower door actuator. It's vacuum driven and controls the air flow from the defrosters, vents, and floor. With the AC on, open the hood and check the lines (very skinny rubber lines) at the firewall in front of the passenger and work back ward. You're looking/listening for a vacuum leak, either a pinhole or maybe a worn end in need of repair.
Posted on Aug 06, 2009
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