headlights not working, need help

[mill5471]

Got an 85' 1 ton 2wd 2 door with the 6.2 diesel. It had been sitting for about 10 years and i got it out and running for the most part. My problem is i have no headlights, all the marker lights, tail lights, and parking lights work, but no headlights. I have replaced the on/off pull switch in the cab and cleaned all the connections and grounds. I have also tested the headlights by connecting them directly to a 12v power source to see if they work, which they do. I have power to the switch and coming out of the switch but not at the headlights. All the fuses are good, is there something i am missing, fusable link or something? If it may be a fusable link where would it be located? Thank you for any suggestions, im kinda stumped.

 

[dyeager535]

If you've got power through the switch, then the only problem can be the wiring or fuse panel connector between the switch and the headlights.

 

[throttleissues]

Headlight power goes through the dimmer switch after it leaves the headlight switch. I don't remember whether it's on the floor or column in '85, but the first thing to do is cycle the dimmer switch about a dozen times. This very well may clean the contacts and make it work, since it's been sitting for 10 years.

 

[mill5471]

Thanks guys. I have "flicked" the dimmer switch several times but ill try some more. Quick question- Does the headlights have a fuse in the fuse panel? There has to be something protecting them? I see taillights and all the other lights, but not one reading headlights. Thanks again

 

[throttleissues]

I don't see one labeled for headlights on mine, either, but I would check all the fuses anyway using a test light, it's much faster and more accurate than looking at the fuses. Other than that, I would still tend to suspect the dimmer sw, but you should be able to check power in/out of it at the connector on the column.

 

[dyeager535]

Headlights are protected by a breaker internally in the headlight switch.