Yes it sounds like a bad switch i would replace it and if you get part from autozone they can print out a removal and install instuctions for you car the switches ford used in mid 90's were junk and if they can't then here is how it change switch
REMOVAL & INSTALLATION
Functional Lock Cylinder
See Figures 1 and 2
Disconnect the negative battery cable.
Remove the upper and lower steering column covers.
Turn the ignition lock to the accessory position.
Insert a 0.125 (3.17mm) wire pin or small drift punch in the hole at the top of the cylinder housing and depress the retaining pin while pulling out the lock cylinder.

Fig. Fig. 1: Turn the ignition to the RUN position and release the lock cylinder retaining pin

Fig. 2: Carefully remove the lock cylinder from the steering column
To Install:
Turn the new lock cylinder to accessory position and while pressing the retaining pin in, insert the lock cylinder into the housing.
Turn the key to the OFF position the release the retaining pin.
Try the lock cylinder operation in all positions.
Reinstall the steering column covers.
Reconnect the negative battery cable.
Non-Functional Lock Cylinder
Disconnect the negative battery cable.
Remove the upper and lower steering column covers.
Insert a 0.125 (3.17mm) drill bit in the hole at the top of the cylinder housing and drill out the retaining pin.
Be careful not to drill into the lock cylinder housing.
Pull out the lock cylinder.
Clean out all the metal shavings and check the tube for damage. If damaged, the housing must be replaced.
To Install:
Turn the new lock cylinder to accessory position and while pressing the retaining pin in, insert the lock cylinder into the housing.
Turn the key to the OFF position the release the retaining pin.
Try the lock cylinder operation in all positions.
Reinstall the steering column covers.
Reconnect the negative battery cable.
Friday, February 17th, 2017 AT 2:58 PM