Could be a faulty temp sending unit.
The blower motor will operate when the key is in run regardless of whether the motor is running. The AC itself is not operating as the compressor is turned by the motor.
Buy a Haynes Repair Manual for your vehicle. It will explain just about everything.
sounds like the motor is running lean, not enough fuel.
what causes hesitation on ford f150 truck
Can you put a 350 gm motor in 97 ford f150
Check fuse if ok Check to see if getting power to fan motor - if ok motor needs replacing - if not may be switch or relay
you can go to your local library and ask to look at a repair manual for you vehicle, in that manual you will find a diagram
it should be next to the blower motor
Depending on the motor is it a 108 or a 205
5620
THERE IS NO f150 ECONOLINE VAN. THE f150 IS A PICKUP NOT A VAN.
Ford never made a 350 motor