I know this a antique tractor forum but I know a lot of you know the modern stuff to. My 6420 Is going crazy. The fourway flasher is coming on all by itself with the switch off then goes off then back on. also the tail lights do the same thing but not as often, also all the work lights did it a couple of times. I put in a new battery because it was four years old. Checked the alternator and cleaned all the contacts. also cleaned the main ground on the engine block. Anyone had this before? The tractor will work all day so far, at least I hope so I just cut 20 acres of the nicest second cutting hay I ever had.
- Thread starter MBdeere
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