Doesn't work.
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Fleet Mechanic
Joined: Oct 2005
Posts: 1,369
Likes: 7
From: Gainesville, GA
Doesn't work.
Today I changed my blend door actuator in my '99 Explorer with the automatic heater control and all it did was blow hot air. The actuator didn't change the door. After talking to my mechanic I took both battery cables off and touched them to each other. This resets the computer. My take on this was after doing anything that has to do with the computer controlled functions of the car you might have to do this to get the thing to work
Fleet Mechanic
Joined: Dec 2013
Posts: 1,268
Likes: 35
From: Utica, Nebraska
What that is supposed to do is reset the KAM, Keep Alive Memory. It resets shift points in the transmission, idle values and a few other things. Your supposed to do it for about 10 minutes, with a jumper wire going between the two wires. You sure the temperature control panel is still good? Cause I don't believe KAM resetting would have helped the blend door at all.
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Fleet Mechanic
Joined: Oct 2005
Posts: 1,369
Likes: 7
From: Gainesville, GA
What I know is when I changed the blend door actuator no matter what temperature I set it to it blew pure hot air. After I touched the battery cables together and changed temperature it blew cold when I changed the control to 60* and hot at 90*, which are the limits of the control.
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