How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Joel Your Own Question
Joel, Auto technician
Category: Chevy
Satisfied Customers: 1603
Experience:  GM, ASE Certified Technician. Chevy, Buick, Pontiac, Olds. Over 18 Years experience and growing.
Type Your Chevy Question Here...
Joel is online now
A new question is answered every 9 seconds

2003 chevy: only get heat on right side vents no heat on left side

This answer was rated:

i have a 2003 chevy silverado i only get heat on right side vents no heat on left side

Hello and welcome back.

This is a common failure of the driver side temperture door actuator motor.

You can try to reset the system by doing this procedure...

Turn key off.

Remove the HVAC/ECAS fuse from the underhood fuse box for 1 minute.

Re-install fuse.

Start truck and do not touch any HVAC controls for 2 miinutes.

Turn off truck for 10 seconds.

Start truck and check operation.


This will sometimes re-set the motor. But it it may start acting up again.

The motor would need to be replaced.


Customer: replied 7 years ago.
how big of a job is it to change

Not too bad at all.

It is located on the bottom of the HVAC case under the dash. Remove the lower dash panel. It is near the center. Almost triangle in shape, 1 electrical connector, 2-3 screws hold it on. Should only take less then an hour.

After replacement, do the re-learn procedure above.


Customer: replied 7 years ago.
i called the dealer they say there are 2 motors same motors one on top of case one on bottom i just want to make sure am changeing the rg one

Yes, the one on the bottom is for the drivers side.

The one on the top is for the passenger side.

Passenger side motor requires removal of the dash.

the one you are having trouble with is on the botom, and do not need to remove the dash. Just the lower panel.


Joel and other Chevy Specialists are ready to help you