My dome light on my 86 f150 stopped coming on with the door open . It only comes in with me turning the switch on. Any thoughts?

 

I would say bad door switch.
Does the other side door switch work if you open the door?
I don't know about Fords but you might be able to switch the switches left to right but some cars/trucks use 2 different switches left & right.


I wonder if a parts store would have a switch in the help section?
Dave ----

 

I will try the other door , thx haven't tried that yet. Door switch hard to put in?

 

Not knowing the type you have some screw in and some snap in.
Between the 2 you can tell when you look at them. The screw type you screw in or out to adjust when it turns on/off.
I don't know how the other type is adjusted?
Dave ----

 

IIRC, my '85 is threaded, so yours should be the same. You do NOT adjust it by how far you thread it in; it would be loose if you did. You thread it in all the way, and the part that sticks out "self-adjusts" the first time you close the door.

 

Any switch I have seen from this era screws in but there's always a chance you have something different.

Yes, the switch on the pillar would be my first suspect... 9/16ths"/14mm socket.

The switches should be interchangeable with the RH side but not all trucks have a switch in the RH pillar, that was part of some optional lighting package.

You also might be able to just clean it, everything is readily accessible.

 

Well it was the switch ,put a new one in and works really good . Now I got my eye on the dome light lens in lmc mag. Also the the led bulb looks cool. Might have too hook my self up with a Xmas gift !! Thx for the help