Hello. I replaced my blend door actuator per TSB 8-23-6 to try to cure a clunking noise. It never fixed my loss of cool air then clunk and air came back problem. Just took my truck to dealer and mentioned the issue to them and they called said they fixed it, I installed the door wrong and it was re aligned. I have the factory service manuals and it says nothing about aliging the actuator when reinstalling.

Does this sound correct? Could they have fixed my problem?

 

bump..........

 

I had to dig through the diagnostic procedures in the service manual to find this. I believe I'll give it a try before replacing my actuator to see if it helps. Although, I've done this inadvertantly at least a dozen times messing with my NAV system. How hard was it to replace the motor?

Electronic Automatic Temperature Control (EATC) Module and Electronic Manual Temperature Control (EMTC) Module Cold Boot Process
The purpose of the cold boot process is to allow the EATC or EMTC module to re-initialize and calibrate the door actuators. To carry out the cold boot process, follow the steps below.

1. Turn the ignition switch to the OFF position.
2. Disconnect the EATC or EMTC module electrical connectors.
3. Wait one minute .
4. Connect the EATC or EMTC module electrical connectors.
5. Turn the ignition switch to the ON position.
6. Select any position except OFF on the EATC or EMTC module. The EATC or EMTC module will now initialize and calibrate the mode doors. Calibration of the mode doors will take approximately 30 seconds .

 

Replacing the actuator was simple and I read the service manual to do it however the dealer claims i aligned it wrong and that was my problem. But then when I said it did this before I changed the actuator and it still does it, was it off from the factory I got a blank stare. The service manual doesnt not say anything about aligning up properly.