Engine Air Cleaner Filter Inspection and Replacement — Diesel Engine; Draining Fuel/Water Separator Filter — Diesel Engine- Page 426

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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424

SERVICING AND MAINTENANCE

 

Engine Air Cleaner Filter Inspection and 

Replacement — Diesel Engine

Follow the recommended maintenance 

intervals as shown in the Maintenance 

Schedule in this section.
Engine Air Cleaner Filter Removal
1. Loosen the fasteners from the engine air 

cleaner filter cover using a suitable tool.

Engine Air Cleaner Filter Cover

2. Lift the engine air cleaner filter cover to 

access the engine air cleaner filter.

3. Remove the engine air cleaner filter from 

the housing assembly.

Engine Air Cleaner Filter

Engine Air Cleaner Filter Installation

NOTE:

Inspect and clean the housing if dirt or debris is 

present before replacing the engine air cleaner 

filter.

1. Install the engine air cleaner filter into the 

housing assembly with the engine air 

cleaner filter inspection surface facing 

downward.

2. Tighten engine air cleaner filter cover 

fasteners using a suitable tool.

D

RAINING

 F

UEL

/W

ATER

 S

EPARATOR

 

F

ILTER

 — D

IESEL

 E

NGINE

  

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.

1 — Engine Air Cleaner Filter Cover
2 — Fasteners

1 — Engine Air Cleaner Filter Cover
2 — Engine Air Cleaner Filter

CAUTION!

Do not drain the fuel/water separator filter 

when the engine is running.

Diesel fuel will damage blacktop paving 

surfaces. Drain the filter into an appro

-

priate container.

21_JT_OM_EN_USC_t.book  Page 424  

Detailed Information for 2021 Jeep Gladiator Owner's Manual

Lists of information found in 2021 Jeep Gladiator Owner's Manual - Page 426

  • 1. Loosen the fasteners from the engine air cleaner filter cover using a suitable tool.
  • 2. Lift the engine air cleaner filter cover to access the engine air cleaner filter.
  • 3. Remove the engine air cleaner filter from the housing assembly.
  • 1. Install the engine air cleaner filter into the housing assembly with the engine air cleaner filter inspection surface facing downward.
  • 2. Tighten engine air cleaner filter cover fasteners using a suitable tool.

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