FORD FUSION HEATER NOT WORKING

Turned Heater On For A Cool Morning. By Mid Afternoon It Had Warmed Up Enough To Turn On A/c. After Switching To A/c The Heater Never Shut...

My Car's Heater Will Only Blow Warm Air When I'm Accelerating Down The Road. Most Of The Time It Doesn't Warm Up If Parked. When I Stop At A...