I own a 99 4x4 4.0 liter ford ranger. when I run the air conditioner or heater on any vent setting, the exhaust of cold or hot air comes out of the defrost vent 100pecent of the time . What part and repairs will be needed to make this repair by an average person?
The blend door actuator is vacuum driven. It sounds like you have a vacuum leak. Trace the vacuum lines starting at the firewall in front of the passenger side. With the heater or AC on HIGH and directed at the front vents, listen for a leak or trace the vacuum line back ward to try to find a leak. All the best.
Greg
As
per your problem mentioned. There are few solved help links to
troubleshoot these problems. Go through the list and Click the link below:----
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http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html
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http://repairhelpcenter.blogspot.com/2012/01/hot-air-on-drivers-side-vents-only.html
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http://technoanswers.blogspot.in/2012/04/1992-toyota-camry-ac-control-light.html
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These will help.
Thanks.
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