It took a long time to determine the problem but eventually i discovered that the plastic bracket latch hook that held the three door switches showed appreciable wear from repeated door openings and closings.
My front door handle latch is worn out over time.
Replace the handle and reinsert and tighten the retaining screws.
How to clean and re grease your door latches.
If the door handle uses locking mechanism test all the ways of locking.
Sometimes the part that breaks can be too expensive to replace.
Remove the outside door handle.
Even usual wear and tear can contribute.
Align the strike plate for the deadbolt pre drill your holes and attach the strike plate to the door jamb with two longer screws for extra reinforcement.
Each door set is a little different.
I replaced the worn bracket.
Door must be slammed hard to close.
When the door is shut the latch and anchor interlock to close the door.
Use your drill and unscrew the screws in the latch as well as the screws on the inside door handle.
Make sure the bent lip of the strike plate is facing the direction in which the door opens.
Old door handles rarely break completely.
Every door comes to a time when it will not latch correctly and there are various reasons why.
One symptom of a faulty door latch mechanism are doors that will not stay closed.
This wear stopped the door from sealing properly and the door switch safety mechanism blew the line fuse.
Then replace the front screw don t forget to position the door seals.
The most common problem with door catches is the failure of the striker to penetrate into the striker plate.
This is a problem as vehicles with doors that do not stay shut are unsafe to drive.
Step 3 turn the handle over and if necessary reverse the latch nose.
Then it makes sense to just get a new door handle but this is not always the case.
Going back replace the handle in the front and slide it all the way to the back and insert the rear screw first.
If the latch mechanism inside of the door fails or has any issues it may not be able to secure onto the anchor which will result in a door that will not stay closed.
Damp weather or heat may be warping it.
Test to make sure the door handle actuates the latch correctly.
Ground that has frozen under the door may also cause it to not close properly.
Align the strike plate for the handle against the door jamb and attach with two small screws.
Then remove the inside door handle.
As we were taking apart this door handle we found a little round plate on the inside of the door.
The settling of the house over time can cause the doorjamb or door to become skewed so.
As you remove the pieces make sure you keep them all together they are pretty small and can disappear quickly.
Another symptom of a problem with the door latch.
Fortunately there are several ways to fix a door that will not latch.