I had a problem with my brake lights blowing a fuse awhile ago and i got if fixed but now when i turn on the lights and then press the brakes the right taillight seems to shut off instead of getting brighter...the left side is ok im kidda puzzled on this one cause i really dont know where to start

 

you most likely have a short somewhere, is there rats arounds your area?

they might be chewing at your wires

or has the truck ever been in a accident?

 

double check correct bulb/installment also check to see if the sockets for the bulbs are burnt up

 

Or just a bad bulb.

 

if there is an area without rats, i wanna live there haha.

 

i own a mechanic shop and so many customer come in with issues like this, the rat chews up the wire and the wire isnt completely cut but cut enough where the positive touches the ground on the body and shorts out

 

i've seen cats eaten by radiator fans, and squirrels stuck in the under carriage, but i actually haven't dealt with chewed wires before, guess we dont have too many rats here lol

 

what also happens if cars or truck get into accidents and the body shop fixes the body but does crappy work with the wires and after time the wires come apart and once again the positive touches the ground and shorts out

 

i checked the bulb bulb ficture and nothing seems to be wrong so it must be a short

 

anyone have a wiring diagram i might be able to use to find the short