Fuel Filter Replacement — Diesel Engine- Page 428

2021 Jeep Gladiator Owner's Manual

Table of Contents

GETTING TO KNOW YOUR VEHICLE
GETTING TO KNOW YOUR INSTRUMENT PANEL
WARNING LIGHTS AND MESSAGES
STARTING AND OPERATING
MULTIMEDIA
SAFETY
OCCUPANT RESTRAINT SYSTEMS
SERVICING AND MAINTENANCE
VEHICLE MAINTENANCE
TECHNICAL SPECIFICATIONS
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426

SERVICING AND MAINTENANCE

 

F

UEL

 F

ILTER

 R

EPLACEMENT

 — D

IESEL

 

E

NGINE

NOTE:

Using a fuel filter that does not meet FCA US LLC 

filtration and water separating requirements 

can severely impact fuel system life and reli

-

ability.

1. Ensure engine is turned off.
2. Remove the fuel filter protective cover to 

access the fuel filter assembly.

Fuel Filter Assembly

3. Place drain pan under the fuel filter 

assembly.

4. Open the water drain valve, and let any 

accumulated water and fuel drain.

5. Close the water drain valve.

Fuel Filter Drain Valve

6. Wipe clean the underside of the filter 

housing to prevent contamination from 

entering fuel system during service.

7. Remove the fuel filter cap and filter from the 

housing using a socket. Rotate counter

-

clockwise for removal.

CAUTION!

Diesel fuel will damage blacktop paving 

surfaces. Drain the filter into an appro

-

priate 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.

1 — Retainers
2 — Fuel Filter Protective Cover

1 — Water Drain Valve

21_JT_OM_EN_USC_t.book  Page 426  

Detailed Information for 2021 Jeep Gladiator Owner's Manual

Lists of information found in 2021 Jeep Gladiator Owner's Manual - Page 428

  • 1. Ensure engine is turned off.
  • 2. Remove the fuel filter protective cover to access the fuel filter assembly.
  • 3. Place drain pan under the fuel filter assembly.
  • 4. Open the water drain valve, and let any accumulated water and fuel drain.
  • 5. Close the water drain valve.
  • 6. Wipe clean the underside of the filter housing to prevent contamination from entering fuel system during service.
  • 7. Remove the fuel filter cap and filter from the housing using a socket.

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