Take the pipe off the filter,the 1 that comes from the tankI can hear the pump in the tank working away once the key is turned on
Very reliable, 6400 would be even better.As John Deere's go, how reliable are the 6200 and 6300 models?
Could be the gauze at the end of the lift pump in the tank. If it's the same system as the jd6800. We used to hit the bottom of the tank with a hammer when we needed a quick fix for it, but thinking on it now that would release more dirt from the bottom of the tank. If it's the same as the jd6800 there is a port through the floor of the cab on the passenger side underneath the mat under that is the top of the lift pump, pull it out n check the gauze and be careful with the wires.I can hear the pump in the tank working away once the key is turned on