Question about 1999 Ford F150 Regular Cab
Please help, heat on all the time, just started, heat is on even when turned to off. no ac either just hot air
Sounds like an issue with your diverter door under your dash is stuck in heat mode. When you turn on a/c, the door should close off the heater core section and open up and let your evaporator (a/c) open . You will have to figure out if its your controller or the door. Older units used cables and had no issues. Yours probably has electronic control /motors, etc.
Posted on Mar 31, 2014
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Posted on Jan 02, 2017
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