The Passenger Side Temperature Actuator went out in my 2003 Trailblazer. The passenger side and rear vents blew heater air instead of air conditioned air.
I removed the glove box and found the actuator to the left center behind the radio on the passenger side.
How I did it:
Unplug the actuator. Using a 5.5 mm extended socket on a screw driver remove the two screws. Now use some force to pull on the metal bracket on the outside of actuator enough to wiggle the actuator out of the plastic door gear. The old actuator has a tighter fit than the new one. I replaced the actuator, but the air was still not working correctly. So I took the actuator out again and turned the plastic door gear until I had cold air coming from the vents. I replaced the new actuator and noticed it calibrated to the correct setting and screwed it down.
Be careful of your knuckles as you pull on the bracket. Notice red stuff on the back of bracket.
Next job is to replace the vent blower for the various speeds, My #5 is out.
Then I will replace the window regulator and motor when the part comes in.
thanks to all for helping me with this job-it saved me a lot of money and will keep me cool in the Bakersfield 100 degree heat this summer.
J Baker
I removed the glove box and found the actuator to the left center behind the radio on the passenger side.
How I did it:
Unplug the actuator. Using a 5.5 mm extended socket on a screw driver remove the two screws. Now use some force to pull on the metal bracket on the outside of actuator enough to wiggle the actuator out of the plastic door gear. The old actuator has a tighter fit than the new one. I replaced the actuator, but the air was still not working correctly. So I took the actuator out again and turned the plastic door gear until I had cold air coming from the vents. I replaced the new actuator and noticed it calibrated to the correct setting and screwed it down.
Be careful of your knuckles as you pull on the bracket. Notice red stuff on the back of bracket.
Next job is to replace the vent blower for the various speeds, My #5 is out.
Then I will replace the window regulator and motor when the part comes in.
thanks to all for helping me with this job-it saved me a lot of money and will keep me cool in the Bakersfield 100 degree heat this summer.
J Baker