When pushing the open button for rear latch it sometimes will open by it self, then oother times you have to help it to open, then when closing it seems to sense something in it path and reopens, and will continue to do so, unless you help push it close, the same goes for left side door,

Your door ajar system is tied into the door latch mechanism. if the door still appears to close tightly, and the door latch works properly, then you may need to adjust or replace the latch, though ford has listed a cleaning procedure for the latch that involves using a tool to test latch position and manually closing the latch (while door is OPEN) using a screwdriver 10-20x and monitoring to see if the latch consistently shows CLOSED and OPEN when it should.
If pushing the door closed after its already closed causes the lamp to turn off, an adjustment of the latch may help, or cleaning the latch contacts may also help. If the door never shows latched regardless of how hard it is pushed, it may be a defective latch, or a wiring problem (Door wires sometimes break in the door harness between the door and the side of the dashboard when the harness enters the vehicle).

You need to open door from inside, take off door panel and reconnect small plastic clip that attaches external door handle.

You have probably bumped the latch and caused it to close. Look at the latch in the door. The latch has a locking arm that is down when in the locked position and up at the top when in the open position. If the arm is down in the center of the latch opening of the door push the arm upward until it locks in place.(sometimes you have to activate the latch handle/button on the outside of the door while pushing the arm upward)

you probably nee d a new door latch assembly; inside the door, take alot of wd40, lube the door latch were it closes against striker pin, to free the movable part of the latch; push in on the door handle (like your opening the door), at the same time use a pointy screwdriver awl or flat blade scredriver and push the latch up and out of the locked position, its the movable part in the door latch, hopefully its not bent and will not move. also sometimes the door hinges wear out and the latch striker does not line up with the door latch pin, see if they line up if they do not close the door while lifting it at the same time. I hope this helps you

I’m happy to help further over the phone at https://www.6ya.com/expert/gregory_8e6ba270263743ac

Manually push the lock button into the UNLOCK position. Now HOLD the OUTSIDE DOOR HANDLE in the OPEN position while at the same time, moving the DOOR LATCH into the open position. Hope this helps

Manually UNLOCK the door button or slide. HOLDING the OUTSIDE DOOR HANDLE in the OPEN position, with your other hands finger, LIFT OPEN the latch, and close your door. Hope this helps.

My 2000 Sable does it evey winter - all 4 doors. I have found spraying WD 40 into the latch on the door works quickly to allow you to close the door.

haev some one help you by pushing on the door wjile you try to open it. it needs little force. what happen is the catch is off align, when you moove the furnitures.
you have to look at the lock and figure out how much is off and correct it.

i was having the same type of problem. we just put a couple of washers behind the latch and then adjusted the latch and it solved our problem.