Trouble with the John Deere 6420 shorts familyfarm John Deere 6420 Problems
You might have a sticking modulation valve, or a bad clutch pedal sensor. On the pressurized fuel tank, I have seen one do this before. I'm Was not able to get it to work super well but its usable for now. If it gets worse I guess a new expensive HCU control box must be Pull Starting the 4010 John Deere Tractor ...