So recently the a/c in our truck seems to be stuck in the highest fan speed setting. Changes from either the steering wheel controls or the panel control do nothing to change the speed. When I try to turn the system to off completely it will go to what I believe is the vents and stay on full blast. I've ready on earlier years (98-99) that this problems mainly resides in the:
Blower motor resistor
MOTORCRAFT Part # YH1699 {#4L3Z19A706AA}
w/4 Pin Connector
but since ours has the dual zone a/c I'm not 100% sure since there is also:
Blower motor speed controller
YF3Z19E624AA
One is like $15 and the other is $130 so looking for thoughts before taking the plunge. Also, where is the blower motor resistor for an 2006 Expedition with the dual zone? I know where the blower motor speed controller is but not sure what to look for with the resistor. Thanks for any help!
Thanks for clearing that up! It's the answer I was looking for, not it was also the answer I wasn't hoping for . Ah well, at least it's easy to get to instead of being a $500 fix. Oh btw, does the diagnosis sound accurate I assume? Anything else it "could" be?
For future reference if it's needed by other peeps, the part number for the blower speed module is 6L1Z-19E624-A and it's located on the passenger side downstream from the fan. There is a physical connector between the two so it's hard to miss. Took all of 10 upside down minutes to replace and $40. Thanks again for the help Steve.
Need help with a/c fan speed
. Ah well, at least it's easy to get to instead of being a $500 fix. Oh btw, does the diagnosis sound accurate I assume? Anything else it "could" be?
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