Originally posted by cudabob
My 2000 Chev Ck 2500 4X4 gas guage when full only reads about 7/8ths full.

Is there some way of adjusting the guage or is a sending unit malfunctioning???

Any help greatly appreciated!
unplug the wire at the tank. if the dash gauge goes all the way to "F" then its the tank unit. if it stayes where its at its the dash gauge. ground the tank wire and the dish gauge should go to "E" no adj.