No heat on driver side

2004 CADILLAC DEVILLE DTS
130,000 MILES • 4.6L • V8 • AUTOMATIC
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CARL WAGNER
  • MEMBER
  • 2 POSTS
Selecting heat, passenger side got heat but none on driver side.
Oct 31, 2018 at 10:55 AM
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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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CARL WAGNER
  • MEMBER
  • 2 POSTS
No heat at driver side but heat on passenger side.
Oct 31, 2018 at 11:09 AM
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ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 52,796 POSTS
Good afternoon.

The is a blend door actuator on the left side for heat and cold. It is under the dash above the fuel pedal.

Procedure and picture below.

Roy

1. Remove the left side sound insulator.
2. Remove the left air temperature actuator retaining screws (1).
3. Remove the electrical connector from the left air temperature actuator.


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4. Remove the left air temperature actuator.
Oct 31, 2018 at 11:44 AM
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