Ignition switch sticks when cold

UNDER THE STEERING WHEEL LOCK THERE IS A SPRING. REPLACE THE SPRING WITH A STRONGER ONE. ADD FRESH GREASE. MAKE SURE THE IGNITION SWITCH IS INSTALLED PER MFG. INSTRUCTIONS.

WD shouldn't hurt if it is the lock cylinder. If it is the switch,
connected by a link rod, I would replace it.
So, try the WD first. Mine (alos '87 Ford) is doing the same, but not
nearly as bad as yours.

Gary

had the same problem with a few of my fords in the fleet (i work for a truck
rental company) and the wd40 worked just fine

i had exactly the same problem with an 88 econoline. i replaced both the lock
cylinder and the ignition switch (which is on top of the steering column,
under the dash, connected to the lock cylinder by a rod). the ignition switch
was what made the difference, though. it cost about $10, and took 15 minutes
to replace. getting the switch in and out is a little awkward--not much
clearance--but wasn't all that difficult.

jy