NOISE from heat/ a/c control
 

I have a new noise. Bad noise.
It would sound like a fan blade hitting something, except slower and louder
Coming from heater control panel

Any control I use stops the noise but only for a second, the noise ces back
The only thing that stops
The noise it turning up temperature, and that's not good

Anybody else had this? Any ideas where to start?

There is a write up on this problem I will see if I can find it for you.

Is this it.
https://montecarloforum.com/forum/fw...-2007-a-26817/

You beat me to it Mel. Hopefully that fixes your problem

Zach what mileage come in when this starts?

The actuators can be purchased on ebay for about $25. There are 3 total...2 of mine were bad.
Dorman 604-108

Found them on Amazon for 20 bucks.

Idk it's probably one of those things that just happens whenever regardless

yup. that's the noise.

Why are there 3, for dual zone climate control?
Should I buy 2 or 3?

(1 to use, 1 to lose, 1 to break?)

I'm at 230,000 Km's

I would just get 3 and change them all and be done. I going to order 3 and put it on the shelf until needed.