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Eric, Automotive Repair Shop Manager
Category: Car
Satisfied Customers: 29728
Experience:  Automotive Repair Shop Manager, Technician/JA Mentor
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When A.C. is on, driver side blows hot air. The other side

This answer was rated:

When A.C. is on, driver side blows hot air. The other side blows cold air.

First off, what is the year, model and make of your vehicle?

Does it have separate controls for driver and passenger side temperature controls?

is it automatic or manual climate controls?
Customer: replied 3 years ago.

2005 Chevy Silverado pick-up 6 cycle. It does have separate controls, with manual climate controls.


Ok, this is going to be the driver side temperature blend door actuator. Below are directions to replace it



afterwards, you have to do a recalibration

1. Clear all DTCs.
2. Place the ignition switch to the OFF position.
3. Install the HVAC actuator.
4. Connect all previously disconnected components.
5. Remove the HVAC/ECAS fuse for a minimum of 10 seconds.
6. Install the HVAC/ECAS fuse.
7. Start the vehicle.
8. Wait 40 seconds for the HVAC control module to self-calibrate.
9. Verify that no DTCs have set as current DTCs.
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