Mitsubishi Montero Sport (2004+). Manual - part 582

SPECIAL TOOLS

TSB Revision

FUEL SUPPLY

13B-5

SPECIAL TOOLS

M1135000600333

TOOL

TOOL NUMBER AND 
NAME

SUPERSESSION

APPLICATION

MB991958

A: MB991824
B: MB991827
C: MB991910
D: MB991911
E: MB991914
F: MB991825
G: MB991826

MUT-III Sub Assembly

A: Vehicle 

communication 
interface

B: MUT-III USB Cable
C: MUT-III Main Harness 

A (Vehicles with CAN 
communication 
system)

D: MUT-III Main Harness 

B (Vehicles without 
CAN communication 
system)

E: MUT-III Main Harness 

C (for Chrysler models 
only)

F: MUT-III measurement 

adapter

G: MUT-III trigger 

harness

MB991824-KIT

Reading diagnostic 
trouble code

CAUTION

MUT-III Main Harness B 
(MB991911) should be 
used. MUT-III main 
harness A and C should 
not be used for this 
vehicle.

MB991348 Test harness 
set

MB991348-01

Fuel tank differential 
pressure sensor check

MB991910

MB991826

MB991958

MB991911

MB991914

MB991824

MB991827

MB991825

A

B

C

D

E

F

G

DO NOT USE

DO NOT USE

MB991348

FUEL TANK

TSB Revision

FUEL SUPPLY

13B-6

FUEL TANK

REMOVAL AND INSTALLATION

M1135001900252

Pre-removal Operation
• Draining Fuel

• Fuel Line Pressure Reduction (Refer to GROUP 13A − 

On-vehicle service 

P.13A-887

.)

Pre-installation Operation
• Refilling Fuel

• Fuel Leakage Inspection

AC004609AB

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

23

23

24 23

27 N·m
20 ft-lb

2.5 N·m
22 in-lb

2.5 N·m
22 in-lb

2.5 N·m
22 in-lb

2.5 N·m
22 in-lb

2.5 N·m
22 in-lb

N

N

1.

DRAIN PLUG

2.

FUEL TANK FILTER TUBE 
PROTECTOR
FUEL TANK REMOVAL STEPS

3.

LEVELING HOSE

4.

FILLER HOSE

5.

VAPOR HOSE

6.

FUEL HOSE

7.

HIGH-PRESSURE FUEL HOSE 
CONNECTION (FUEL TANK SIDE)

8.

FUEL GAUGE UNIT CONNECTOR

9.

FUEL PUMP CONNECTOR

10. FUEL TANK DIFFERENTIAL 

PRESSURE SENSOR 
CONNECTOR

11. FUEL TANK
12. HIGH-PRESSURE FUEL HOSE
13. FUEL GAUGE UNIT

14. FUEL TANK DIFFERENTIAL 

PRESSURE SENSOR

15. FUEL PUMP ASSEMBLY
16. PACKING
17. LEVELING VALVE
18. FUEL CUT-OFF VALVE

FUEL TANK FILLER TUBE 
REMOVAL STEPS

2.

FUEL TANK FILTER TUBE 
PROTECTOR

3.

LEVELING HOSE

4.

FILLER HOSE

19. VAPOR HOSE
20. FUEL TANK FILLER TUBE CAP
21. PACKING
22. FUEL TANK FILLER TUBE
23. VAPOR HOSE
24. FUEL CHECK VALVE

FUEL TANK REMOVAL STEPS 

FUEL TANK

TSB Revision

FUEL SUPPLY

13B-7

INSPECTION

M1135002000263

FUEL SHUT-OFF VALVE CHECK

Check that the flapper and valve open and close as shown in 
the illustration.

FUEL CUT-OFF VALVE CHECK

1. Shake the fuel tank rollover valve assembly up and down to 

check if the float inside the fuel tank rollover valve assembly 
is not seized. If seized, replace the fuel tank rollover valve 
assembly.

2.  Obtain a container, which is full of water.
3.  Invert the fuel tank rollover valve assembly, and submerge it 

slowly in the water while placing your fingers over the 
nozzle.

4. Check that no more air bubbles appears from the fuel tank 

rollover valve assembly, and withdraw it slowly.

AC005004AB

CLOSED

OPEN

FLAPPER

80˚

ACX00760AB

AC102262

NOZZLE

AB

FUEL TANK

TSB Revision

FUEL SUPPLY

13B-8

5. Open the fuel tank rollover valve assembly nozzle. If no 

water flows out from the nozzle aperture, the valve is 
normal. If water flows out, the float or spring inside the fuel 
tank rollover valve is defective. Replace the fuel tank rollover 
valve assembly.

FUEL TANK DIFFERENTIAL PRESSURE SENSOR 
CHECK

Required Special Tool:

• MB991348: Test harness set

1. Disconnect the fuel tank differential pressure sensor 

connector and connect special tool MB991348 between the 
terminals of the disconnected connector.

2. Turn the ignition switch to "ON" and take a reading of the 

following output voltage. Between terminals (2) and (3).

Standard value: 2.0 

− 3.0 V

FUEL GAUGE UNIT CHECK

Refer to GROUP 54, Combination Meter 

P.54-117

.

FUEL FILTER REPLACEMENT

M1135001300067

1. Bleed the residual pressure from inside the fuel line. (Refer 

to GROUP 13A, On-vehicle Service 

P.13A-887

.)

AC102263

<NORMAL>

<DEFECTIVE>

AB

ACX00762 AB

MB991348