inst lighting and tail lights

Charging, starting, lighting, gauges, HVAC

Moderators: FORDification, Thunderfoot

Post Reply
69fordfan
New Member
New Member
Posts: 34
Joined: Tue Jan 03, 2012 11:02 am

inst lighting and tail lights

Post by 69fordfan »

howdy..ive read the post on the bo lighting on the inst panel and have concluded that i may possibly have a bad ignition switch. but the problem im having is the inst panel and the tail lights(both sides) go out. when i shut the lights off and give them a little time-too cool????- they all come back on and all work for a little while and then go back out. do you think this is a switch issue or something else? the fuses do not blow and cant find any loose conections under dash. have a new light switch and tested it against an old switch and both seem to have the same result. wadda u think?
thanks :hmm:
User avatar
71PA_Highboy
Blue Oval Fanatic
Blue Oval Fanatic
Posts: 923
Joined: Tue May 23, 2006 11:32 am
Location: Denver of the East

Re: inst lighting and tail lights

Post by 71PA_Highboy »

The light switch has a circuit breaker in it. It can trip and cause issues.

Have you ensured that all your wiring is good and you don't have any shorts?
Got Ford?
2 EarlyBroncos (68,69)
2 Classic Mustangs (69,70)
1 F250 4x4 (71) - OB - 360, NP435, D24, HPD60 4.10, D60,
1 94 Ranger, 2.3, 5spd
1 Lincoln Mark VIII
69fordfan
New Member
New Member
Posts: 34
Joined: Tue Jan 03, 2012 11:02 am

Re: inst lighting and tail lights

Post by 69fordfan »

there is a circuit brkr INSIDE the light switch?? if so that would explain why the switch get pretty warm when i have the lights on. if that is true then i probably do have an electrical short/ground issue. any clues or past experiences/advice on where to start looking?
thanks
User avatar
71PA_Highboy
Blue Oval Fanatic
Blue Oval Fanatic
Posts: 923
Joined: Tue May 23, 2006 11:32 am
Location: Denver of the East

Re: inst lighting and tail lights

Post by 71PA_Highboy »

Look for any splices from the previous owner, then check the harnesses where they pass thru metal... there may be rub spots.

Are you running stock bulbs all around?
Got Ford?
2 EarlyBroncos (68,69)
2 Classic Mustangs (69,70)
1 F250 4x4 (71) - OB - 360, NP435, D24, HPD60 4.10, D60,
1 94 Ranger, 2.3, 5spd
1 Lincoln Mark VIII
69fordfan
New Member
New Member
Posts: 34
Joined: Tue Jan 03, 2012 11:02 am

Re: inst lighting and tail lights

Post by 69fordfan »

yea, all stock bulbs. looks like theres been alot of "construction" under the dash so thats where im gonna start. do you think it would be safe to say that my problem is restricted to just the lighting circuits from the switch or should i be looking for something else as well?
thanks
User avatar
71PA_Highboy
Blue Oval Fanatic
Blue Oval Fanatic
Posts: 923
Joined: Tue May 23, 2006 11:32 am
Location: Denver of the East

Re: inst lighting and tail lights

Post by 71PA_Highboy »

given the age and the fact that you say there has been 'construction' under the dash tells me you should be looking at everything. The lighting circuit will be the focus, but I have seen people ground the weirdest things... ;)
Got Ford?
2 EarlyBroncos (68,69)
2 Classic Mustangs (69,70)
1 F250 4x4 (71) - OB - 360, NP435, D24, HPD60 4.10, D60,
1 94 Ranger, 2.3, 5spd
1 Lincoln Mark VIII
69fordfan
New Member
New Member
Posts: 34
Joined: Tue Jan 03, 2012 11:02 am

Re: inst lighting and tail lights

Post by 69fordfan »

thanks..gotta get started. have a good one! :pray:
69fordfan
New Member
New Member
Posts: 34
Joined: Tue Jan 03, 2012 11:02 am

Re: inst lighting and tail lights

Post by 69fordfan »

:woohoo:
found 2 wires spliced into the wiring bundle in the engine compartment that went back to the tail lights. those wires ran up the frame towards the rear and were just hanging there???? the ends were stripped as it they actually went to something??? one of the ends was grounding/shorting against the frame. cleaned up the mess and all is good. i can drive the "old no 7" at night now.
Post Reply