Posted 4/29/2009 22:24 (#697697 - in reply to #697353) Subject: Re: JD 8400 oil pressure warnings & codes, need help????
Southern MN
You might want to take off the green sheet metal cover behind the cab and check to see if a mouse has been chewing on the harness. The mice like to nest in the wire harness near the controllers and chew on the wires. I recently discovered some minor mouse damage on our 8420.