Tail lights?
05-06-2017, 05:58 PM
#1
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Tail lights?
So I just bought an 85 f150 with thethe 300 I6. I just found out the left rear blinker, brake, and both left and right reverse lights don't work but all the night time lights work. I tried everything from replacing all fuses(including the flasher), changing all bulbs.It still doesn't work. I looked at the wiring and it doesn't look bad. I mean it looks old but not bad. So far no frays or anything like that. The only thing I can think of is a big connector under the hood where all lights, signals, etc. All those wires lead to one group and feed into the cab by the steering column. Any ideas anyone?
05-06-2017, 07:07 PM
#2
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Your reverse lights are more than likely related to the switch.
The brake/turn lamp may be a bad socket. I had to replace both of mine in my 78. They went out within 2 weeks of each other.
Take a voltage meter or a test light and see if the terminal in the socket is getting power, if it isn't move to the wire. My guess is the socket is bad.
The brake/turn lamp may be a bad socket. I had to replace both of mine in my 78. They went out within 2 weeks of each other.
Take a voltage meter or a test light and see if the terminal in the socket is getting power, if it isn't move to the wire. My guess is the socket is bad.
05-13-2017, 02:56 PM
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Your reverse lights are more than likely related to the switch.
The brake/turn lamp may be a bad socket. I had to replace both of mine in my 78. They went out within 2 weeks of each other.
Take a voltage meter or a test light and see if the terminal in the socket is getting power, if it isn't move to the wire. My guess is the socket is bad.
The brake/turn lamp may be a bad socket. I had to replace both of mine in my 78. They went out within 2 weeks of each other.
Take a voltage meter or a test light and see if the terminal in the socket is getting power, if it isn't move to the wire. My guess is the socket is bad.
05-13-2017, 03:10 PM
#4
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The Brake and turn signal are supplied by the same wire and use the same filament in the bulb.
There are 3 wires in the socket, 1 ground, 1 for the running/tail light and 1 for the brake/turn signal. The bulb is grounded on the side on the metal base and the contacts at the bottom are the positive supply for the 2 bulb filaments.
It is nearly impossible to diagnose the socket by looking at it. Both of mine looked fine but were not.
There are 3 wires in the socket, 1 ground, 1 for the running/tail light and 1 for the brake/turn signal. The bulb is grounded on the side on the metal base and the contacts at the bottom are the positive supply for the 2 bulb filaments.
It is nearly impossible to diagnose the socket by looking at it. Both of mine looked fine but were not.
05-15-2017, 09:56 PM
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05-15-2017, 11:21 PM
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