Once convinced the blend door is your problem cut the plenum open at the bottom to remove the blend door.
1997 ford f150 heater blend door actuator replacement.
A blend door actuator is made up of an electric motor that turns a plastic gear set in one direction or another which is connected to an air control door pivot at the final drive of the unit.
Use a rotary cutting tool.
This article applies to the ford f 150 2004 2014.
After removing the actuator it was determined that the blend door was stuck.
An actuator can go bad in of two ways.
Buy heater blend door repair kit repair easy new replacement for compatible with ford f 150 f150 1997 2003 f 250 f250 1997 1998 expedition 1997 2002 navigator 1997 2007.
Quintin heatetreater tootallgreg replace the blend door on your ford f 150 for under 200 and less than two hours of work.
How to replace your blend door.
On this video we showing how to troubleshoot a problem with the air conditioning main blend door on a 2002 ford f150 we found a bad blend door actuator moto.
Secure the cutout with metal duct tape hot glue or epoxy.
Remove the old door and replace it with the new one pushing the shaft up reconnect the actuator motor and properly index the shaft.
Replacement air door actuator controls the temperature of air from ac vents and recirculation outside air into the interior of the vehicle.
This shows how to remove install a blend door actuator in a 1999 ford f150.