Why does my alarm go off about an hour after I lock my vehicle with the key fob.

No..I have done that previous. My question was how do I determine what door switch needs to be replaced. I don't want to clobber it together...I want to fix it right. Others have posted the WD-40 trick and it is only temporary from what I can tell.

Found this helpful tidbit on this site on how to isolate the culprit door. When the ajar light is lit on the dash, simply roll down all windows, remove keys from ignition and set the alarm using the remote. After a 30 second wait reach inside through the open window, open each door using the inside handle and the horn should go off. Reset the alarm by touching the red horn button on the remote to silence the horn. Next, move to the next door. If the alarm does not sound when opening a door, that is the culprit door!! Now this test is only for the four doors. So this did work for me and the right front passenger door did not set off the alarm when opened. Maybe i am getting somewhere.

I found on another site (Which I can't find now) is that you sit inside your vehicle with the doors locked. The vehicle was not running. Manually unlock one door. Now this is where I can't remember if the alarm is silent of goes off when you open the door from the inside. I think it should be silent. I tested each door...twice. Relock the vehicle and do this with each door. I could not check the tailgate. When I had the doors locked and manually unlocked the front passenger door and opened it, the alarm went off. Replaced that sensor and the problem was fixed. Again, I can't remember if the alarm goes off or is silent. Sometimes more than one sensor is bad.

my little buddy just bought two of these in the past year, 2007 Escapes.one for $700.00 and one for $500.00.they look brand new,so he got a very good deal on em.he was having the same problem with the door ajar switches sticking,waking him and neighbors up in the middle of the night.i told him to spray wd-40 on/in the door latches until it ran out the bottom of the doors,so he did.he opened and closed the doors several times and the switch(s) quit sticking now,working like they are on steroids,just gob it in there! those switches are $30.00 each at O'reilly Auto Parts for the Motorcraft Brand! he is working part time at a parts house now,so when people come in wanting to buy door ajar switches,he just tells em they don't need em and grabs his can of wd and goes out and fixes them for the folks,they love him!........................................................................................................................................................ 2006 ford escape intermittent alarm and door … www.youtube.com/watch?v=uV1r9wUy6_M