parked about a week ago. tried to use today. starts but shuts down immediately when switch is in run position. When switch is held in start position will run, but as soon as it is released shuts down. No hydraulics either (bucket or fwd/bkwd. checked fuel and filter, good, checked oil and coolant good. checked hyd fluid good. did have to charge battery. it has a good charge. only change is temp has dropped drastically since last used. kind of stumped. Any ideas please? only has 380 hours on meter.