Question about 2005 Ford Mustang GT
The A/C only blows out of the defroster I checked both blend door actuators and they are working what am I missing
Posted by Anonymous on
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Posted on Jan 02, 2017
You probably have a vacuum leak on the passenger side. its a small plastic hose some times they come unpluged from the engine. or brake.
Posted on Jan 05, 2009
check for a vacuum leak from the vacuum source on the engine to the heater control head.
defrost is fail safe mode.
A/C Vacuum Reservoir Tank and Bracket Removal and Installation
A/C Vacuum Reservoir Tank and Bracket
Posted on Jun 06, 2009
Defrost is the default position, The control head is most likely electronic on this model, the actuators that switch the modes are little electric motors. There was an issue with the plastic doors that direct airflow, they would break and jamb. If the control head were to be the older style that uses vacuum then I would say that you have lost vacuum to the inside of the vehicle. If this is the case look for a broken vacuum hose coming to or through the firewall, ususlly on the passenger side under the hood close to the HVAC pipes/lines in the firewall.
Posted on Aug 21, 2009
that clicking noise you hear is likely a relay in the fuse panel that needs to be replaced. the easiest way to find out which relay it is would be to put you finger on each relay as you actuate the device not working. once you locate the clicking relay replace it . to reset the computer just unhook the battery for about ten minutes. if you have an anti theft radio make sure you know the code for it and how to enter it before you unhook the battery.
Posted on Nov 27, 2010
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