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5. Open the fuel filter vent
valve by turning the
screw counterclockwise
several full turns.
The vent valve is
located on top of the
fuel filter housing.
6. Repeatedly push down
on the fuel filter priming
pump with the palm
of your hand. The
pump is located on top
of the fuel filter
housing. Let the pump
return upward
between pushes.
7. Operate the priming pump until a small amount of
fuel seeps from the vent valve. When you see the
fuel, the filter is now full of fuel and the system
should be primed.
8. Close the vent valve. Clean any fuel which
accumulated on the fuel filter. Start the engine
and let idle for a few minutes. Check the filter
for leaks.
5-9
Summary of Contents for 2003 DURAMAX
Page 58: ...NOTES 5 40...
Page 82: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 24...
Page 83: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 25...
Page 84: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 6 26...