Jeep Wrangler: VEHICLE MAINTENANCE / Fuel Filter Replacement — Diesel Engine
NOTE:
Using a fuel filter that does not meet the manufacturer’s
filtration and water separating
requirements can severely impact fuel system
life and reliability. We recommend you use
Mopar® Fuel Filter. Must meet 3 micron rating.
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.
- Ensure engine is turned off.
- Remove the fuel filter protective cover to
access the fuel filter assembly.
![Jeep Wrangler. Fuel Filter Replacement — Diesel Engine](images/fuel_filter_replacement_v_diesel_engine-624/1/jeepwrangler_fuel_filter_replacement_diesel_engine_675.gif)
- Retainers
- Fuel Filter Protective Cover
- Place drain pan under the fuel filter
assembly.
- Open the water drain valve, and let any
accumulated water and fuel drain.
- Close the water drain valve.
![Jeep Wrangler. Fuel Filter Replacement — Diesel Engine](images/fuel_filter_replacement_v_diesel_engine-624/1/jeepwrangler_fuel_filter_replacement_diesel_engine_676.gif)
Fuel Filter Assembly
-
Water Drain Valve
-
Wipe clean the underside of the filter
housing to prevent contamination from
entering fuel system during service.
-
Remove the fuel filter cap and filter from the
housing using a socket. Rotate counterclockwise
for removal.
![Jeep Wrangler. Fuel Filter Replacement — Diesel Engine](images/fuel_filter_replacement_v_diesel_engine-624/1/jeepwrangler_fuel_filter_replacement_diesel_engine_677.gif)
-
Fuel Filter Cap
-
Socket Adapter
-
Remove the used fuel filter cartridge from
the cap and dispose of according to your
local regulations.
-
Wipe clean the sealing surfaces of the cap
and housing.
CAUTION!
Take care when handling the new fuel filter to
prevent contamination from entering the fuel
system.
- Lubricate o-ring on the cap with clean
engine oil.
- Install the new fuel filter cartridge onto the
cap.
- Insert the cap and filter into the housing
with clockwise rotation, use a socket to
tighten.
- After engine start, verify the fuel filter cap
does not leak.
The fuel/water separator housing is located
inside the left frame rail in front of the fuel tank.
The best access to this water drain valve is from
under the vehicle...
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...
Other information:
Use the following procedure to prepare your
vehicle for recreational towing:
WARNING!
You or others could be injured or killed if you
leave the vehicle unattended with the transfer
case in the (N) Neutral position without first
fully engaging the parking brake...
CAUTION!
Lowering of the windshield is NOT recommended
in vehicles equipped with a Power
Sliding Top. Damage will occur to the top as
well as the header seal.
If your vehicle is equipped with a Power Sliding
Top, the control switch can be found on the
front trim panel, to the right of the driver’s side
sun visor...