climate controls

Asked by Fcs1997 Nov 15, 2017 at 05:24 PM about the 2003 Ford Explorer XLT V8

Question type: Maintenance & Repair

my heater onlt works on high, won't switch from
cold to hot, and won't switch from defrost to
anything else. swapped swtich and still not
working. my daughter's '99 is doing the same
thing.

1 Answer
73,410

OJ answered 6 years ago

Possibly the blend door actuator which moves the blend door from hot to cold. My son's 2003 explorer has the same problem. It's an electrical operated motor buried behind the dash which may necessitate the dash being removed to replace. Check the net for a video on the blend door actuator. There is also a workaround involving drilling a hole in the side of the dash and using a plastic wire tie to operate the door after the engine starts.

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