It's called the mode door actuator and it is up in the vent system.
The mode door actuator has failed. We have instructions for repair at www.trailvoy.com
Could be the mode door actuator. For more info visit our enthusiasts forum at www.trailvoy.com
Probably the mode door actuator. We have instructions on the replacement procedure on our enthusiasts forum at www.trailvoy.com
new mode actuators must be reprogrammed with scan tool that is capable of reflash.
This is a failure of the mode door actuator in the venting system. We have instructions in our enthusiasts forum on how to change it out. www.trailvoy.com
It controls which vent the air comes out of.
It controls which vent the air comes out of.
The part cost 139.99 from the local auto store.
Only one thing there. The blower motor for the heating and AC. Turn it off and see if it still happens. A constant faint clicking sound may indicate a failing mode door actuator. If the blower does not seem like the issue and change in frequency of clicks with the speed setting then the mode door actuator and an inability to select air flow may be your problem. www.trailvoy.com
It depends on the year and wether you have digital or manual air
To replace the vent mode door actuator in a 2006 GMC Envoy Denali, start by disconnecting the battery to ensure safety. Remove the necessary dashboard components, including the center console and the trim panels, to access the actuator, which is typically located behind the dashboard. Disconnect the actuator's electrical connector and remove the mounting screws to take out the old actuator. Install the new actuator by reversing the process, ensuring all connections are secure before reassembling the dashboard.