Blend door actuator

DriveShaft · August 11, 2022

I have had a 2015 Chevy Silverado Z71 for a couple of months now. My problem is warmer air blows out the drivers side vents and the passenger side is way cooler. Which blend door actuator controls this. There are 4 on my truck and before I go spending $ I hope someone can help.

josney · August 12, 2022

I just had one replaced in my 2014 by a local shop, I would probably take it somewhere and let them diagnose which one is bad. They just labeled mine as temp door actuator.

This was located up high in the dash, between the glovebox and radio. A few years ago, I would have tackled this myself but I am not as young as I use to be.

Wyatt1963 · August 16, 2022

I had this happen after the dealer replaced both headlight bulbs. It was weird like everything had been wiped out radio, seat memory etc. but the most weird thing was the passenger side was blowing hot air when the drivers side was ice cold. The dealer said it was one of 4 actuators going bad. They wanted to take it back in to further diagnose but I didn’t have time or $175 per hour to spend.

I went home determined to figure it out.
I unhooked the battery and waited about 10 minutes and BAM! everything back to normal.
Strange but maybe a precursor of things to come.

good luck.

Edited August 16, 2022 by Wyatt1963

josney · August 18, 2022

On 8/16/2022 at 7:25 PM, Wyatt1963 said:

I had this happen after the dealer replaced both headlight bulbs. It was weird like everything had been wiped out radio, seat memory etc. but the most weird thing was the passenger side was blowing hot air when the drivers side was ice cold. The dealer said it was one of 4 actuators going bad. They wanted to take it back in to further diagnose but I didn’t have time or $175 per hour to spend.

I went home determined to figure it out.
I unhooked the battery and waited about 10 minutes and BAM! everything back to normal.
Strange but maybe a precursor of things to come.

good luck.

I tried this method as well but didn't help me, worth a shot though. I bought the truck used and I was just glad it wasn't a condenser.