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Regular right hand thread to my knowledge, lefty-loosey, righty-tighty.
The wiper arms have a flip-up cover that you need to pop up in order to get at the bolt.
This question is not answerable - what do you mean by the motor core?
On a 2004 Ford Freestar : The thread on cap on the engine coolant reservoir is the pressure cap / radiator cap
It is right on the wiper motor, under the cowling, and on the motor, 3 wore connector
Since the Freestar is just a Windstar with a different name, try the "Related Question" below for getting started with replacing the window motor.
Replacing a wiper motor on a 2004 Chevy Impala can be difficult. It is best to take it to an auto repair mechanic or an authorized Chevrolet dealership.
the wiper motor assembly is under the wiper cowl.unbolt the wiper arms.and undue all plastic fasteners for trim lift off the trim disconnect the washer hoses.
Below the wipers on the firewall.
if its not mounted to the firewall just above and at the rear side of the motor then it is on the opposite side of firewal bellow the wiper arms
The wiper motor is located under the cowl, (the black cover in between the hood and windshield) about center of the vehicle.
Ford Freestar was created in 2004.