2005 Trailblazer Floor To Dash Vent Mode Actuator

I ve tried to recalibrate by taking out the fuse waiting a couple minutes putting the fuse back in turning the car to run letting it go through its motions but that didn t work.

2005 trailblazer floor to dash vent mode actuator. I took the dash out and found the flap actuators. And floor i was told it is a faulty blend door actuator or a mode door actuator. I have no air from the panel vents. There is steady knocking in my dash actuator.

I have determined it is the mode door actuator. The air won t blow out the dash vents. The gear was broken and the shaft was tuning in the gear instead of moving the hub. Follow the floor duct to the heating ventilation and air conditioning case.

The air only blows out of defrost n floor vents. Might need to compare to another 05 with the automatic hvac. The popping only lasted 30 40 seconds before stopping. Blend actuator helps combined cool and warm air to produce the proper desired temperature.

Nothing seemed to stop the popping but i did notice my air wasn t changing between modes defrost dash vents and floor vents it was stuck blowing air out the floor vents. It blows out the floor vent and the defroster vent. Jump to latest follow 1 8 of 8 posts. I m attempting to repair the mode actuator itself.

How to replace the mode actuator on trailblazer by robert moore. I knew it had to do with the hvac so i tried changing settings on my digital hvac controls. Changed my battery and some relays on my 2005 chevy trailblazer lt. It s in floor mode.

Recently my front vents stopped working on my 2004 chevy trailblazer. I have a 2005 chevy trailblazer. I think its the mode actuator. I have the new part which includes a motor a bracket and cam type hub assembly that operates the levers for 3 different.

But which is it im comf. But having had a look it doesn t seem to be. 2006 chevy trailblazer front vents not blowing air out of the 4 dashboard vents when the control knob is turned to front vent setting. The airconditioner will only blow air through defrost and floor vents.

Posted by ross schneider on mar 20 2012. Mode actuator determines where the air will blow out of such as the floor vents the top vents or the defrosting vents that blow onto your windows and windshield. Heater control actuator regulates flow of hot air when heater is engaged. A forum for all things trailblazer ss including mileage horsepower.

I am getting air out of the floor and defrost vents but when the mode is set for the answered by a verified chevy mechanic. We use cookies to give you the best possible experience on our website. 2005 obw dyi hvac vent mode actuator repair. Remove the screws that secure the lower sound insulator to the driver side dash using a socket and ratchet.