Dodge RAM 2500 2022, Owner'S Manual

Page: 412 / 494

408 SERVICING AND MAINTENANCE
Underbody Mounted Fuel Filter Assembly
1. Ensure engine is turned off.
2. Place drain pan under the fuel filter drain hose.
3. Open the water drain valve one full turn
counterclockwise and completely drain fuel
and water into the approved container.
4. Close the water drain valve.
5. Remove lid using a socket or strap wrench.
Rotate counterclockwise for removal. Remove
used o-ring and discard it.
6. Remove the used filter cartridge from the
housing and dispose of according to your local
regulations.
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.
NOTE:
Water In Fuel (WIF) sensor is re-usable. Service kit
comes with new o-ring for filter canister and WIF
sensor.
P
RIMING
I
F
T
HE
E
NGINE
H
AS
R
UN
O
UT
O
F
F
UEL
— D
IESEL
E
NGINE
1. Add a substantial amount of fuel to the tank,
approximately 2 to 5 gal (8L to 19L).
2. Three priming cycles must be completed. Turn
ignition to the RUN position and wait approxi
-
mately 30 seconds. This will activate the in
tank fuel pump. Turn the ignition switch to the
off position, and leave off for at least 30
seconds. Repeat this procedure three times
before cranking the engine.
3. Start the engine using the “Normal Starting”
procedure
Ú
page 134.
4. Once the engine starts, allow the engine to idle
for a minimum of 30 seconds.
1 — Drain Valve
CAUTION!

Diesel fuel will damage blacktop paving
surfaces. Drain the filter into an appropriate
container.

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.
WARNING!
Do not open the high pressure fuel system with
the engine running. Engine operation causes
high fuel pressure. High pressure fuel spray can
cause serious injury or death.
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