Mitsubishi Grandis. Manual — part 685

LOOSE PANEL

BODY

42-68

Dash side plate removal steps

•

Front deck crossmember and heater
unit assembly (Refer to GROUP 55,
Heater Unit and Blower Assembly

P.55-200

).

9. Dash side plate <Driver’s side only>

Front backbone stay removal

10. Front backbone stay

Rear backbone stay removal

11. Rear backbone stay

Jack up point bracket removal

12. Jack up point bracket

Rear floor hook removal steps

•

Rear splash shield (Refer to GROUP
51, Rear Bumper

P.51-6

).

13. Rear floor hook

13B-1

GROUP 13B

FUEL SUPPLY

CONTENTS

GENERAL INFORMATION . . . . . . . .

13B-2

ON-VEHICLE SERVICE. . . . . . . . . . .

13B-2

FUEL PUMP OPERATION CHECK . . . . . .

13B-2

FUEL TANK GAUGE UNIT CHECK . . . . . .

13B-2

FUEL TANK PUMP AND GAUGE ASSEMBLY
REPLACEMENT . . . . . . . . . . . . . . . . . . . . .

13B-2

FUEL TANK GAUGE UNIT REPLACEMENT

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13B-3

FUEL TANK . . . . . . . . . . . . . . . . . . . .

13B-5

REMOVAL AND INSTALLATION . . . . . . . .

13B-5

DISASSEMBLY AND REASSEMBLY . . . . .

13B-8

GENERAL INFORMATION

FUEL SUPPLY

13B-2

GENERAL INFORMATION

M1135000100491

• The fuel tank is located under the floor of the rear

seats to provide increased protection and a more
luggage space.

• A fuel tank safety valve, which prevents fuel

leakage when the vehicle banks or rolls over, is
located inside the fuel tank to reduce openings
and piping junctions on the top surface of the fuel
tank.

• A built-in fuel tank filter and a fuel tank suction

hose have been adopted to meet the fuel tank of
a saddleback shape.

ON-VEHICLE SERVICE

FUEL PUMP OPERATION CHECK

M1135001000215

Refer to GROUP 13A - On-vehicle Service, Fuel
Pump Operation Check

P.13A-386

.

FUEL TANK GAUGE UNIT CHECK

M1135003100412

Refer to GROUP 54A

− Combination Meter,

On-vehicle Service, Fuel Tank Gauge Unit Check

P.54A-81

.

FUEL TANK PUMP AND GAUGE
ASSEMBLY REPLACEMENT

M1135004900370

1. Reduce fuel line pressure. (Refer to GROUP 13A,

On-vehicle Service

− Fuel Pump Relay

Disconnection (How to Reduce Pressurized Fuel
Lines

P.13A-386

).

2. Remove the second seat assembly, the rail cover

outer and the rail cover inner. (Refer to GROUP
52A, Second Seat Assembly Removal and
Installation

P.52A-26

).

3. Remove the rear scuff plate (Refer to GROUP

52A, Trim Removal and Installation

P.52A-10

),

and turn up the floor mat.

4. Remove the rear floor fuel gauge maintenance

hole cover (LH).

5. Disconnect the fuel tank pump and gauge

assembly connector, fuel high-pressure hose and
fuel tank hose (return).

6. Remove the fuel tank pump and gauge assembly

mounting nuts.

AC301331

AC

Rear floor
fuel gauge
maintenance hole cover

AC301292 AC

Fuel high-pressure hose

Fuel tank hose
(return)

Fuel tank pump
and gauge assembly
connector

AC301329

AC

Fuel tank pump
and gauge assembly

ON-VEHICLE SERVICE

FUEL SUPPLY

13B-3

CAUTION

• The section hose connecting fuel tank assist

pump has factory preset mating marks.
However, if the marks have been dropped out
because of gasoline adherence, make the
matingmarks and remove the suction hose.

• When withdrawing the fuel tank pump and

gauge assembly via the service hole, be
careful not to damage the gauge and the float.

7. While removing the fuel tank pump and gauge

assembly from service hole, disconnect the
suction hose from fuel tank assist pump, and
remove the fuel tank pump and gauge assembly
from service hole completely.
NOTE: When disassembling and reassembling
the fuel tank pump and gauge assembly, refer to
the items of fuel pump module disassembly and
reassembly.(Refer to

P.13B-8

).

8. Replace the fuel tank pump gasket with a new

one.

CAUTION

• When installing the fuel tank pump and gauge

assembly from service hole to fuel tank,
install it with suction hose mating mark facing
as shown in the illustration not to twist the
suction hose.

• When installing the fuel tank pump and gauge

assembly from the service hole to the fuel
tank, be careful not to damage the gauge of
fuel tank pump and gauge assembly and the
float. In addition, be careful that the float of
fuel gauge does not catch the suction hose in
the fuel tank.

• When installing the fuel tank pump and gauge

assembly from service hole to fuel tank, make
sure that the gauge moving area can move
smoothly.

9. While inserting the fuel tank pump and gauge

assembly from the service hole to fuel tank,
connect the suction hose to the fuel tank assist
pump and install the fuel tank pump and gauge
assembly to the fuel tank.

10.Connect the fuel tank pump and gauge assembly

connector, fuel high-pressure hose and fuel tank
hose.

11.Install the rear floor fuel gauge maintenance hole

cover (LH).

12.Return the floor carpet back to the original state

and install the rear scuff plate. (Refer to GROUP
52A, Trim Removal and Installation

P.52A-10

).

13.Install the rail cover inner, the rail cover outer and

second seat assembly. (Refer to GROUP 52A,
Second Seat Assembly Removal and Installation

P.52A-26

).

FUEL TANK GAUGE UNIT
REPLACEMENT

M1135001400439

1. Remove the second seat assembly, the rail cover

outer and the rail cover inner. (Refer to GROUP
52A, Second Seat Assembly Removal and
Installation

P.52A-26

).

AC302870

AC

Mating marks

Suction hose

Fuel tank pump
and gauge
assembly

Fuel tank assist pump

AC302871

AC302871

AC

Suction hose

Fuel tank assist pump

Fuel tank pump
and gauge
assembly

AC302870

AC

Mating marks

Suction hose

Fuel tank pump
and gauge
assembly

Fuel tank assist pump