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My '90 E250, open road,mini motorhome , says on the radiator mount , that there is a Fuel shutoff switch that may have been activated....I don't have the manual for it, so I need help in finding the switch, so's I can reset it ....The vehicle sometimes starts after about 2 mins with the ignition on,but today won't start , even after a longer wait. Both tanks are full...Fuel gauge not working , in either front or rear position. I can hear the rear pump,in the tank, but can not hear the front one....When I bought it last year, it ran fine after waiting to start, and both positions worked , no stalling , or shutdown.Came home about 95 miles, and it's been parked almost all the time since. I want to start it up weekly , but am having that same problem ...Today was the first time I could see the Fuel Pump Shutoff warning ...but can 't find the darn switch to try resetting .....HELP , PLEASE....
If you can hear any pump run the Fuel shutoff switch is OK.
By the way it is either behind the passenger kick panel or above the drivers left foot on the firewall.
Sounds like your frame mounted pump is bad along with the front tank pump.
The Frame mounted pump should run with either tank pump. The 1990 was the last year for the frame mounted pump in the Gas E-series.
Also change the fuel filter while you are down there.