2002 Windstar wont go into gear

If you're finding it difficult to service/repair your car, get one of those online manuals. You'll not have to wait for others to answer, or rely on mechanics and all. Plus i know a website that has very good manuals online, without expiry i.e. for
lifetime. www.reliable-store.com

Has the automatic transmission fluid and filter been changed. A flush and change is worth a try.

You need to have the factory security system scanned, it is most likely locking you out due to a fault.

did you check the fluid in the transmissin it could be low or also it could need a new transmission filter i wouldnt try to drive it it anymore without checkin or changin it because it will burn it up

Have you checked the transmission fluid?

it sounds like a shift lock solinoid ....this prevents the car from being shifted out of park when ur foot is not on the brake....u will have to bring this to a repair shop since the faulty part is located inside the paneling where ur shifter handle is

The wheels turning opposite is normal. It's how the differential works. You need to get the transmission checked out by a qualified tranny person.

Very common on this make and model trans, pump drive splines inside torque converter strip out and pump is not turning, Most times there is no damage to pump shaft. Remove trans and remove torque converter, inspect the splines at the very bottom of the hub hole. If stripped out inspected pump shaft splines which are the smaller center splines coming out of trans, if ok replace torque converter and re-install trans, change out fluid, clean any metal from magnet and replace filter, fill with fluid and verify proper operation.

have it scanned, could be as simple as a mlp sensor...manual lever position. or what ya dread, a overhaul

check power to the reverse shift solinoid