A/C and heater both only blow out bottom vents

2008 FORD F-350
172,000 MILES • 6.4L • V8 • TURBO • 4WD • AUTOMATIC
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ALEXCRAFT24
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  • 1 POST
When I turn on my A/C the switch to move it from feet to front to defrost doesn't work it will only come out the bottom vents of the vehicle.
Jun 16, 2021 at 11:03 AM
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KASEKENNY
  • CAR REPAIR CONTRIBUTOR
  • 18,907 POSTS
This is almost always the mode door actuator. Basically this is just the actuator that changes the position that the air is coming out.

Here is a guide on this that will help with step by step instructions:

https://www.2carpros.com/articles/air-vents-stay-in-the-defrost-position

Below is the info from the manual that will give the additional detail to change this out.

Please let us know how you make out. Thanks
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Jun 17, 2021 at 5:34 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.