1994 B3000, step on brake,interior light comes on. also, fuel guage pegs at full when I turn the key on.
when I step on the brake the interior light come on, also the gas gauge goes to 1/2 full when the truck is Off and when i turn it on it pegs at full. it never goes down at all to tell say that the gas is lower than full. all the fuses are good. There was a after market 3rd brake light wired to the drivers side rear brake light but I took that off thinking that might be it, it was not it. Temp gauge always reads cold. other than these problems it runs fine.