Brake light issues
 

My neighbor is having issues with his brake lights, I am thinking its a ground issue or bad socket?

with the headlights off, brake lights work.

with the headlights on, the driver rear light is much brighter than the passenger side.
When the brake is pressed, the rear passenger lights all go out, and the driver side works very brightly.

82 c10

is this a ground? need a new socket? something else entirely that we havent yet considered?

Re: Brake light issues
 

Its more then likely a bad ground.

Re: Brake light issues
 

And one of the bulbs may be in backwards (the dimmer one).

Re: Brake light issues
 

ok cool we will clean the terminals and try again.. i thought the bulb backwards might be the issue too.. he said he flipped it.. we will try that too thanks guys

Re: Brake light issues
 

That bulb should probably be an 1157 double contact bulb and should only fit in the socket one way.