The most common problems with all Ford vehicles will be a bad connection on either the power or the ground wires going to the blower motor itself.........
The "park" signal on the wiper motor is off. The wipers should stay off their cradles about an inch or so. If the ignition key is turned off during an intermittent wipe, the blades may stay at some position on the windshield. They'll return as soon as the next cycle comes up after the ignition is turned on. If they do not behave this way, you likely have a bad wiper motor assembly, which has the control circuit that parks the blades.
most likely need to replace wiper motor. they usually have the intermitnant electronic card inside the motor housing and do not usually sell it separate. changing the whole motor box should solve your problem.
I used to have this problem. The wipers would sweep at odd intervals in intermittent mode and when I turned the wipers off they would not go back in to the 'park' position (they would stop where I turned the switch off). The wiper motor has an issue with the brushes and contact assembly. Oil from the bearing coats the surface of the slip ring and causes intermittent operation. I removed the motor assy from my '96 caravan and cleaned the slip ring and brush with rubbing alcohol. The non-stop operation stopped as well as the 'ghost sweep' operation when in intermittent mode.
Ford Motor Company
Motor, Generator
The motar which can be used 24 hours countinuosly . by which the motor quality remains same is called CONTINUOS MOTOR . The motar which can only be used used for several hours ,namely 2 hours, 4hours, 6 hours depending upon the design of manufacturer is called INTERMITTENT MOTOR.
Ford motor com, designates that the cold inflation pressure should be 32psi.
If intermittent wiper won't work either, it is most likely a bad wiper motor. Had a dealer replace the wiper switch, but that did not fix either problem. After dealer replaced wiper motor, problems were resolved.
Its a motor which is turned on or off by the actuator.
A series motor is employed for traction application which has starting torque and permits intermittent operations by braking, which cannot be expected of a general purpose motor.
The intermittent wiper relay is helpful when only a light rain or mist is present. It causes the wiper motor to only operate once every few seconds.
sounds like a bad blower motor resistor and or plug