I have a 1998 F150 2WD Lariat. 180k miles. Recently the heat is on all the time. The vent or A/C doesn't ever work. Is this simply a replace of the center temp control panel (3 knobs below the radio)? The ambient air temp sensor? Any help would be appreciated before I start randomly replacing parts. Thanks...
If its EATC or automatic control, yes it would probably be a replacement of the control head, but if its EMTC or manual, then I would be looking at the case doors from something blocking them, or the adjustment bein broken..
Had the same problem my 98 F150. Check the blend door actuator.
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