Question about 2004 Ford Expedition
Thomas and Michael are correct, I would replace the blend door actuator. It is a VERY labor intensive job however. Since you have heat entering the truck it rules out the heater core and the heater control valve (passenger side under hood). The blend door directs the heat where you want it to go. There is an actuator attached to the door which moves the door back and forth to direct the airflow where you select on the dash. The actuator is not expensive (about $20.00-$30.00 depending on where you live and which store has them). However, getting to it is a PIA. It is under the passenger side dash inside the plentum chamber, which links like a big black rectangle box. The heater core, blend door and actuator are all inside.
You either need to (here comes the PIA, labor intensive part) remove a lot of the dash components to get to it, or if you do not care about "correct way or broken dash pieces", hack into the box, dig it out, fix it and duct tape some stuff back on. There are a bunch of how-to\'s on the net on both methods. It just depends on if you want quick destructive heat and don\'t care what your truck looks like when you are done, or want it fixed right.
Personally, I always check all HVAC functions on my trucks, wife\'s car and 3 kid\'s cars in September so I have time when it is weather tolerable to fix anything correctly before the Minnesota winter is apron us. Same goes for A/C. I check them in April.
Posted on Nov 19, 2014
Right now I would be a passenger and be warmy.Your blend door is not working.
Posted on Nov 19, 2014
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Posted on Jan 02, 2017
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