1990 Ford F-250 Q&A

1990 Ford F-250 Question: Brake lights wont work?

The truck is a 1969 F250, I changed the Brake Switch, Im getting power to Brake Switch, and tail lights. Could it be a bad flasher switch thats under the dash? I didnt replace it yet. Also the bulbs are good, I think? -
Answer 1
try your bulbs first. there are 2 elements in the bulbs . if you have power back there then you either have bad bulbs or a ground issue. Roy -
Comment 1
Thanks for the info, Do you know where the ground might be? -
Comment 2
follow the black wires from the socket. they will be body mounted close by. Roy -