How to replace temp blenddoor actuator - Bonneville Pontiac Cars & Trucks

Heatr core bad or blenddoor/panel has issues

. What actuator ? Temp door , mode door ? air temp. actuator right , air temp actuator left etc... Does the vehicle have manual or automatic climate control ? One fuse for all actuators ,HVAC 1 fuse , fuse # 29 10amp , location - rear fuse box . Under left rear seat .

The heat exchanger housing is the same for all the model types except for the blenddoor actuation if it is manual or electronically controlled which has different part numbers
the dashboard is mounted the same way for all cab types and is removed by the screws and bolts the same way
still going to take over 12 hours start to finish if you get it right first time
I didn't it took two tries and a weekend

What is your question ?

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Hope this helps

If the squealing is coming from the engine you may need a belt. If it sounds like the dash it could be your blenddoor actuator having problems cycling or the blower motor

divers side actuator for the blend door needs to replaced

this is a rear temp blend door or mode actuators. the actuator is a small electrical motor that moves the temp/ mode doors inside the heater case to control from hot air to cold air. the actuators are located behind the pass side rear 1/4 trim 1 on top and 1 on the side of the heater case. remove trim and replace

Before you tear into this thing, check around under the hood for a dislodged, broken or cracked vacuum hose. It's the problem most of the time.

Removal & Installation

1. Remove the instrument panel upper trim panel.
   
2. Disconnect the electrical connector from the recirculation actuator.
   
3. Remove the recirculation actuator screws from the HVAC module.
   
4. Remove the recirculation actuator from the HVAC module
   

To install:

1. Align the recirculation actuator with the door shaft and rotate into position.
   
2. Install the recirculation actuator screws to the HVAC module and tighten to 13 inch lbs. (1.5 Nm).
   
3. Connect the electrical connector to the recirculation actuator.
   
4. Cycle the ignition and verify proper operation.
   
5. Install the instrument panel upper trim panel.
   

These are the steps to get to the actuator also.

the switch has fail, have same replace