Hvac control replacement?

[62barsoom]

The hvac control was loose in the 99 Tahoe. I was pulling the lighter panel to install the new USB port and found the controller all broken up. Looking at ebay and amazon replacements. Anybody have any experience with them?

 

[HotWheelsBurban]

Several years ago, with our first 99 Burb, we had the switch fail after replacing the motor and resistor. We replaced the switch 3 or 4 times before getting a good one. I think a couple were used, but the last couple were new Delco ($$$). The last one was good, and was still in the truck when it got totalled. It's in a box to go in the Burb when I do the dashboard work on it.
This was around 12-15 years ago so not as much available then....

 

[62barsoom]

NOS pieces are priced out of sight. I'm not a big fan off the china stuff. So I did a thing. Swapped the broken case parts into the good case non rear defrost spare I had. If you go junkyard shopping find one made out of white plastic. The beige ones are too brittle. I used the little screwdriver to reach into the bottom of the tab slot, a little twist and push released the tabs. Remove the face plate, dont disturb the white switch actuators. There are two little tabs to release the rear defogger switch assy. They broke as soon as I looked at them. It will slide right in the no switch housing and latch in place. Don't loose the little spring! A dab of the silicone grease inside the switch housing will hold the spring in place during assembly. The housing will have plenty to use. Small end toward the micro switch. Snap the face plate back on and bingo.

 

[62barsoom]

And some support pics. Now it's repaired and all oem.

 

[HotWheelsBurban]

And some support pics. Now it's repaired and all oem.

Interesting, never knew what they looked like inside!