Underbody Mounted Fuel Filter Replacement - Diesel Engine - RAM 2500 2023 Owner's Manual

7. Wipe clean the sealing surfaces of the lid and
housing.
8. Install new o-ring back into ring groove on the filter
housing and lubricate with clean engine oil.
9. Remove new filter cartridge from plastic bag and
install into housing.
NOTE:
Do not remove cartridge from bag until you reach this step
in order to keep cartridge clean.
10. Push down on the cartridge to ensure it is properly
seated. Do not pre-fill the filter housing with fuel.
11. Install lid onto housing and tighten to 22.5 ft-lb
(30.5 Nm). Do not overtighten the lid.
12. Prime the engine, then start the engine and confirm
there are no leaks page 390.
Ú
U M F
NDERBODY OUNTED UEL
R — D E
EPLACEMENT IESEL
NOTE:
 Using a fuel filter that does not meet the manufac-
turer's filtration and water separating requirements
can severely impact fuel system life and reliability.
 The underbody mounted filter housing will cause the
engine not to run if no filter is installed.
Underbody Mounted Fuel Filter Assembly
1 — Drain Valve
F
ILTER
 Diesel fuel will damage blacktop paving surfaces.
Drain the filter into an appropriate container.
NGINE
 Do not prefill the fuel filter when installing a new fuel
filter. There is a possibility debris could be introduced
into the fuel filter during this action. It is best to
install the filter dry and allow the in-tank lift pump to
prime the fuel system.
1.
2.
3.
4.
5.
6.
7.
8.
CAUTION!
NOTE:
Water In Fuel (WIF) sensor is reusable. Service kit comes
with new o-ring for filter canister and WIF sensor.
SERVICING AND MAINTENANCE
Ensure engine is turned off.
Place drain pan under the fuel filter drain hose.
Open the water drain valve one full turn counter-
clockwise and completely drain fuel and water into
the approved container.
Close the water drain valve.
Remove lid using a socket or strap wrench. Rotate
counterclockwise for removal. Remove used o-ring
and discard it.
Remove the used filter cartridge from the housing
and dispose of according to your local regulations.
Wipe clean the sealing surfaces of the lid and
housing.
Install new o-ring back into ring groove on the filter
housing and lubricate with clean engine oil.
389
8