[LTC_R]

My 6400 started having issues this year with the fuel. When the crossover pump tries to engage, it can't draw from the Driver tank and the fuel gauge wraps all the way around clockwise to 6, regardless of where it is, a red light comes on and it beeps. After a few moments it stops and resets going back to where the gauge was, with no fuel being transferred. Diagnosing this, I discovered my drivers tank fuel vent was not working properly, I guess it creates a vacuum in the tank that the crossover pump can't overcome. This caused the gauge error and prevented the fuel from balancing. I need to drop the fuel tank to get to the vent and replace it. In the meantime, I have been running with the drivers side fuel tank cap loose - allowing it to vent - and the problem has not recurred. This winter, I will be dropping the tank and replacing the vent.