1998 Ford Explorer • 6 cylinder Manual •

If air conditioner stays on, and no heat will come threw. Have changed control cooling/heating switch and directional control switch. What else should we look for. No heat at all.
December 11, 2010.

When you say the AC is on, is the AC compressor running? Also, with the engine hot, running, and the heater on high, do both heater core hoses get hot?