Blend door actuator
#13
So I was curious yesterday. So I pulled my new blend door actuator out and took it and the old one apart. I didn't see anything wrong with the internals of the old one. Here are some shots of the 2
Old
New
Side by side
The new one does not have the blue gear that the old one has. So I put the old one back in and now I have hot and cold but it is hot only when it is turned all the way up and cold on everything else in the temperature range, like this.
This is exactly how it was before, but at least I don't have just heat now.
Old
New
Side by side
The new one does not have the blue gear that the old one has. So I put the old one back in and now I have hot and cold but it is hot only when it is turned all the way up and cold on everything else in the temperature range, like this.
This is exactly how it was before, but at least I don't have just heat now.
#14
There are 2 different actuators: with and without automatic climate control. They are nearly identical in appearance, except the number of terminals is different, and of course the part number. Are you sure you have the correct one?
#16
You need to have it checked for DTC's and run the functional tests. It will be tough finding an independent shop that is experienced with the ACC system, and willing to tackle it. Any GM dealer should be able to diagnose it for you.