Test F: Starter Spins But Engine Does Not Crank
WARNING: This page is about a different car, the 2002 Ford Pickup, 2002 Ford F550 Super Duty, 2002 Ford F450 Super Duty, 2002 Ford Excursion, and 2002 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Remove starter motor. See STARTER MOTOR under REMOVAL & INSTALLATION. Inspect flywheel and drive pinion for wear or damage. If flywheel or drive pinion is worn or damaged, replace starter motor and flywheel. Check system operation. If flywheel and drive pinion are not worn or damaged, replace starter motor.