Manual Door Lock Fix
I recently purchased a 10 year old Ranger, 4.0L SOHC Automatic 4X4. It is in very good shape with just a few minor issues. One of these issues is manual door locks that were difficult to open with the one existing key. I checked with a dealer and a local locksmith and they both told me I needed new lock cylinders and keys. The cost for purchasing new cylinders and PATS keys, cutting the keys and setting up the cylinders to match the ignition, and replacing the cylinders in the doors...$485.00!!! I was discussing this issue with some friends and one of them who is a lifetime Ford truck collector told me he thought the locks were hanging up because they had not been used in the past. He recommended drenching them with PB Blaster.
A $4.99 can of PB Blaster and about two minutes of exercising the locks with my single key was all it took to restore both locks to perfect working condition.
I plan to let the PB Blaster work for several days and then flush it out of the locks with brake cleaner and relubricate them with graphite powder. The PB Blaster is a petroleum based product and I don't want it to attract dust and debris in the lock assembly.
Hope this saves some of you time and money.