RAM 3500 Truck 4WD L6-5.9L DSL Turbo VIN 6 (1998)
Rollover Valve: Description and Operation
Rollover Valve Location
ROLLOVER VALVE
One rollover valve is used. The valve is used only to vent the fuel tank to the atmosphere. A check valve is located within the rollover valve to
prevent fuel flow from the fuel tank in the event of an accidental vehicle rollover. The rollover valve is located on the top of the fuel tank module.
The valve may be serviced separately. If replacement is necessary, refer to the Removal/installation.
FUEL TANK MODULE
An electric fuel pump is not used in the fuel tank module for diesel powered engines. Fuel is supplied by the engine mounted fuel transfer pump
and the fuel injection pump.
Top View Of Fuel Tank Module
The fuel tank module is installed in the top of the fuel tank. The fuel tank module contains the following components:
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Fuel reservoir
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A separate in-tank fuel filter
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Rollover valve
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Fuel gauge sending unit (fuel level sensor)
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Fuel supply line connection
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Fuel return line connection
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Auxiliary non-pressurized fuel supply fitting