transmission wont go in park?

Your shifter cable or linkage is misadjusted, or something in the linkage is loose which prevents the lever on the transmission from moving to the proper setting. Typically this is an easy repair but if the problem is down by the transmission it will be easier to work on with the car on a hoist.

Check the bottom of the column shifter (under the dash close to brake pedal)to see if the little screws are loose where the cable hooks to it. Those are known to come loose and cause your problem

Thanks way2old. Are those meant to be an adjustment or just another poor design?

Those are just attachment bolts that will work loose. The only adjustment is down on the transmission. They are also bad about breaking the shift tube or wearing the bushings out in the steering column. Hopefully it is just the screws loosened.

I see those parts you mentioned are listed on rockauto.com so that verifies they're common failure items.

Thanks bunches.

my crown vic will go into park but will not stay in place and it only will start in nutrall and also the shift gear seems looser then before

First thing to check is on the bottom of shifter where the cable hooks to it. There are 2 little screws there and they acr commonly known to come loose and cause your problem.