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Brake lights wont work?

(1990 Ford F-250)
in Carlsbad, CA on May 17, 2010
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?
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Popular Answer
on May 18, 2010
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.

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on May 19, 2010
follow the black wires from the socket. they will be body mounted close by.

on May 19, 2010
Thanks for the info, Do you know where the ground might be?
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