How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask A. Penland Your Own Question
A. Penland
A. Penland, Ford Senior Master Technician, ASE
Category: Ford
Satisfied Customers: 6212
Experience:  ASE Master Certified, ASE Advanced Gasoline Engine Performance
14865528
Type Your Ford Question Here...
A. Penland is online now
A new question is answered every 9 seconds

Air vents wont work but defrost works on 2002 ford taurus

Customer Question

air vents wont work but defrost works on 2002 ford taurus ses
Submitted: 9 months ago.
Category: Ford
Expert:  A. Penland replied 9 months ago.

Your AC system has a vacuum leak. The mode actuator is vacuum controlled and when it looses vacuum, it diverts to defrost to allow proper clearing of the windshield for safety. Check the vacuum lines under the hood near the passenger side of the firewall and make sure it is connected and not broken. If the vacuum line is intact, then you will have to locate the cause of the vacuum leak under the dash starting on the passenger side of the dash behind the glove box where the vacuum line enters the inside of the vehicle and follow it to the control panel for the AC and then to the actuators under the dash.