Priming If The Engine Has Run Out Of Fuel — Diesel Engine- Page 429

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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SERVICING AND MAINTENANCE

427

Fuel Filter Cap

8. Remove the used fuel filter cartridge from 

the cap and dispose of according to your 

local regulations.

9. Wipe clean the sealing surfaces of the cap 

and housing.

10. Lubricate o-ring on the cap with clean 

engine oil.

11. Install the new fuel filter cartridge onto the 

cap.

12. Insert the cap and filter into the housing 

with clockwise rotation, use a socket to 

tighten.

13. After engine start, verify the fuel filter cap 

does not leak.

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. Push ignition switch twice without your foot 

on brake to put vehicle in RUN position. This 

will activate the in tank fuel pump for 

approximately 30 seconds. Repeat this 

process twice.

3. Start the engine using the Normal Starting 

procedure  

Ú

page 151.

NOTE:

The engine may run rough until the air is forced 

from all the fuel lines.

1 — Fuel Filter Cap
2 — Socket Adapter

CAUTION!

Take care when handling the new fuel filter to 

prevent contamination from entering 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.

CAUTION!

The starter motor will engage for 

approximately 30 seconds at a time. Allow 

two minutes between cranking intervals.

WARNING!

Do not use alcohol or gasoline as a fuel 

blending agent. They can be unstable under 

certain conditions and be hazardous or 

explosive when mixed with diesel fuel.

CAUTION!

Due to lack of lubricants in alcohol or 

gasoline, the use of these fuels can cause 

damage to the fuel system.

8

21_JT_OM_EN_USC_t.book  Page 427  

Detailed Information for 2021 Jeep Gladiator Owner's Manual

Lists of information found in 2021 Jeep Gladiator Owner's Manual - Page 429

  • 8. Remove the used fuel filter cartridge from the cap and dispose of according to your local regulations.
  • 9. Wipe clean the sealing surfaces of the cap and housing.
  • 11. Install the new fuel filter cartridge onto the cap.
  • 12. Insert the cap and filter into the housing with clockwise rotation, use a socket to tighten.
  • 13. After engine start, verify the fuel filter cap does not leak.
  • 1. Add a substantial amount of fuel to the tank, approximately 2 to 5 gal (8L to 19L).
  • 2. Push ignition switch twice without your foot on brake to put vehicle in RUN position.
  • 3. Start the engine using the Normal Starting procedure Ú page 151.

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