My son is on a climbing trip in the high Sierra's in his 1989 Ford E150 camper van with a 351 V-8. After being parked overnight at high elevations, 7000 to 9000 feet it runs rough on start up and the gauges don't work. If he shuts it off and disconnects the battery and then reconnects it runs fine and the gauges all work. Any ideas on what could be going on? Thanks for any help.
