Drivers And Passengers Side Vent Temperatures Vary By More Than 20 F (11 C) (With A/C)

Driver's and passenger's side vent temperatures vary by more than 20 �F (11 �C)

Diagnostic Procedure:

1. Probable cause: The recirculation control door or the air mix door is malfunctioning

2. Check the operation of the recirculation control cable and linkage. Adjustments Adjust or repair as needed

3. Check the operation of the air mix door cable and linkage. Air Mix Control Cable Removal/Installation Repair as needed

Also check for:

- Faulty heater controls Overhaul
- Clogged heater core
- Clogged evaporator
- Low refrigerant level