Erratic climate control

2003 LINCOLN TOWN CAR
58,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
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CHAIRMANOFTHEBOARD
  • MEMBER
  • 20 POSTS
Hi,

Had my climate control on "vent" only set at 60 degrees. (Not in automatic mode, not in recirculate mode, not in a/c mode, just on fan setting only)
Had fan on medium speed.

For about an 1 hour drive, total. Fan occasionally went to high blower speed at least twice and also went from blowing the 60 degree outside air to 90 degree heated air.

Shut off climate control, waited about 5 minutes , (still driving) and when I put it back on, it was at 90 degrees. Lowered it back to 60 degrees and it was fine for the rest of the trip.

I did not accidentally press the steering wheel controls, it just happened on its own.

Thank you for the advice.
Sep 23, 2020 at 12:30 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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ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 52,796 POSTS
Good afternoon,

There is an in car temperature sensor behind the dash that controls the temperatures.

I attached a picture of the location and the procedure for you to replace.

Roy

REMOVAL
1. Remove the instrument cluster finish panel.



imageOpen In New TabZoom/Print



2. Remove the in-vehicle temperature sensor.
1 Remove the screw.
2 Disconnect the aspirator hose and the in-vehicle temperature sensor electrical connector.
3 Remove the in-vehicle temperature sensor.

INSTALLATION
1. To install reverse the removal procedure.
Image (Click to enlarge)
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Sep 23, 2020 at 1:42 PM
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