Ya, most likely the sending unit. If the top of it or the connection is rusty that would cuase some issues. Dropping the tank is quite the task, but straigforward. If you do it, might as well inspect all the other connections and brakets etc...
Ya, most likely the sending unit. If the top of it or the connection is rusty that would cuase some issues. Dropping the tank is quite the task, but straigforward. If you do it, might as well inspect all the other connections and brakets etc...