Under the dash vent

1992 NISSAN TRUCK
236,588 MILES • 2.4L • 4 CYL • 2WD • MANUAL
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ANTHONY ROBINSON2
  • MEMBER
  • 1 POST
my control that switches from defrost to floor it will not work. it acts like it is stuck. what can I do to make it open?
Feb 12, 2017 at 10:06 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.
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STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 POSTS
Sounds like the mode door controller may have failed. It is on the end of the heater box to the right of the steering column. Circled in the picture.
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Feb 13, 2017 at 12:22 AM
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