the door ajar light

[DonF350]

the door ajar light wont come off. the third brake light light stays on after you open the door and it over a long period of time it goes off. someone said the switch is in the door latch?! if i adjust the striker would that help? i gotta get that light and dash light ajar light out its an 03 or 04 super duty

[bigcountrysg]

Take Brake cleaner to all the latches. Just spray them down real good. Then follow up with a dry lubricant. The problem is dirt build up on the latch will not allow the latch to ground out.

There is many threads about this on the site.

[DonF350]

what if i took the pressure washer with heat on it think that would help? or too much..thats a good idea. and if that doesnt work its safe to say the latch could be bad? is there a sensor for that in the latch itsself?

[Austin G]

Mine is on because my security module is f'ed up. Ford wanted like $600 for a new one, so I just deal with the light... Although everything else works just fine, just the stupid light. But it seems most people around here have problems with the latch.

[bigcountrysg]

Clean them one at a time and see if the light goes off on the dash. If it does then you found the one that was causing the problem.

[SS4Matt]

My driver rear door does that. well it's always off actually. Once my boss borrowed my truck and then my int light wouldn't turn off like yours so I degreased/powerwashed the door jambs and then sprayed a bunch of fluid film in the latches (then slammed the doors a bunch of times to work it in there)

I just did that to a friends ranger the other day too lol

[DonF350]

aLRIGHT ill give it a try