Any homeowner can learn how to change a door lock when necessary, and the skill can be especially important for those who own rental properties. Read on for more tips on when to change door lock ...

The lock actuator consists of a small electric motor that drives a gearbox, which in turn locks and unlocks the door. It sounds simple enough, right?

There are other reasons for replacing locks, though. Ryan Peart of JGM Motorsports came to us with his lock problem. Seems he lost the door and ignition keys to his '66 Mustang.

I can lock the door with the deadbolt, but if I don’t keep it locked, the door swings open. The latch is 2½ inches long, and all the replacement latches I’ve found are longer.

Our 22-year-old ’90 hatch has been through a couple of replacement door lock actuators over the years but this time things were different. The driver’s side actuator worked fine, though a ...