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cgallen
There is actually 3 blend doors on the plenum. The blend door actuator is on the top of the case. It controls heat and cold air.
Where is the blend door actuator on a 1998 Sonoma
it may be a number of things.... the air blend doors get brittle and break then they fall and lay over the heater core blocking the hot air .... or the air blend door actuator may have broken which does not allow the blend doors to switch from hot to cold ..or cold to hot ..... or the heater core itself cold have gone bad
Temperature blend actuator motors price around $45-80.Lots of after-market alternatives to the Ford dealership.
where is the defrost/floor door actuator on 2002 chevy trailblazer
likely thermostat is stuck. The temp blend door actuator has failed.
There are actuators all over the HVAC housing.
I believe it is a blend door actuator. The blend door actuator "blends" hot and cold air enabling you to control the climate control temperature.
need to know were the blend door actuator is for a 2002 gmc yukon on the drivers side , dual climate controls, rear air and heat
the blend door is operated by the blend door actuator motor which is electric.Fairly easy fix too...See "Related Questions" below for more
The blend door actuator's function is to blend the outside air/heat or outside air/ air cond to get the desired temperature out of the unit. It also switches between heat and air conditioning modes.
The blend door blends the hot air with the cold air to produce the temperature you have selected on the temp control switch.