2007 ISUZU KB P190 fuel tank removal

FUEL SYSTEM (4JK1/4JJ1) 6C-43
Removal
Note: W hen repairs to the fuel system have been
completed, start the engine and check the fuel system
for loose connections or leakage. For the fuel system
diagnosis, see Section "Drivability and Emission".
1. Remove the fuel tank assembly (8). Refer to "Fuel Tank Removal" in this section.
2. Disconnect the quick connector (1) of the fuel tube from the fuel gauge unit.






140R100035
3. Remove the retainer ring (3) from the fuel tank
with the removal tool 5-8840-2602-0.
4. Slowly remove the fuel gauge unit (6) from the fuel tank as no bend float arm.
Note: Cover opening for the fuel gauge unit on the fuel
tank to prevent any dust entering.
5. Discard the fuel gauge unit seal (7) because it cannot be reused.

Installation
1. Clean the seal surface of the fuel tank and the fuel
gauge unit.
Note: If there is dust on the seal surface, it can cause a
fuel leak.
2. Install the new fuel gauge unit seal (7) to the opening of the fuel tank along the groove.
3. Slowly install the fuel gauge unit (6) into the fuel tank so there is no bend in the float arm.
4. Set the flange of the fuel gauge unit on the fuel gauge unit seal as mating convexity of the fuel
gauge unit and reentrant of the fuel tank.
5. Slowly lock the retainer ring (3) to the fuel tank with the remover tool 5-8840-2602-0.
6. Connect the quick connector (1) of the fuel tube to the gauge unit.
Note: Pull off the left checker of the fuel pipe.
Note: Refer to "Fuel Tube/Quick Connector Fittings" in
this section when performing any repairs.
7. Check for leak. Method of leak check.
1. Plug the end of the quick connector and breather hose (Pull off the breather hose from
fuel tank) and tighten fuel filler cap until at least
one click is heard.
2. Apply soapy water around the fuel gauge unit seal area.
3 Pressure air into the fuel tank from the end o
f
the breather pipe at 34.3 kPa (0.35 kg / cm2 / 5
psi) over 15 seconds.
4 Verify that no bubbles from around the fuel gauge unit seal area.
8. Install the fuel tank assembly (8).
Note: Refer to "Install the fuel tank" in this section.



Special Tool


ILLUSTRATION PART NO.
PART NAME

5-8840-2602-0
Remover: fuel pump retainer ring


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ISUZU KB P190 2007

6C-44 FUEL SYSTEM (4JK1/4JJ1)
Fuel Tube / Quick - Connector Fittings
Precautions
• Do not light a match or create a flame.
• Keep flames away from your work area to prevent
flammable materials from catching fire.
• Disconnect the battery ground cable to prevent
electrical shorts.
• Pre −treat the piping system or associated parts
from thermal damage or from spattering when
welding or similar heat −generating work.

Cautions During Work
Do not expose the assembly to battery electrolyte or do
not wipe the assembly with a cloth used to wipe off spilt
battery electrolyte.
Piping that has been splattered with battery electrolyte
or battery electrolyte soaked cloth that was wiped on the
piping cannot be used.






140R100032
Legend
1. O-ring
2. Port
3. Connector
4. Plastic Tube


Removal
1. Open the fuel cap to relieve the fuel pressure in
the tank. Use compressed air to remove any dirt
on the fuel quick connect fittings prior to
disconnecting the fittings. W hen disconnecting the
fuel pipe, cover the area with a cloth to prevent
fuel from splashing as the fuel pipe may still have
some pressure in it.





140R100002
2. For removal of the quick connector, hold the quick
connector in one hand, and pull out the connecto
r
with the other hand while pressing the square
release button of the connector, as illustrated.


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ISUZU KB P190 2007

6C-46 FUEL SYSTEM (4JK1/4JJ1)
Filler Neck
Removal
1. Remove the fuel tank.
Note: Refer to "Fuel Tank" in this section. 2. Put a marking on the following points as the fille
r
neck assembly is restored.
• Each joint area of the hose (to restore axial
direction and insertion length of the hose)
• Each fasten area of the clamp (to restore axial
direction and position of the clamp)
• Each bolt in the clamp (to restore fasten length
of bolt in the clamp)
• The band clip (to restore position and fasten
length of the band clip)
Note: Cover end of each hose and pipe to prevent an
y
dust entering.
Installation
1. Align each marking and restore the following point. • Each joint area of the hose (Restore axial
direction and insertion length of the hose)
• Each fasten area of the clamp (Restore axial
direction and position of the clamp)
Tightening torque: 2.5 N·m (0.25 kg ⋅
⋅⋅
⋅
m /21.7 lb in)
Filler neck side except flat deck model.
• Each bolt in the clamp (Restore fasten length o
f
bolt in the clamp)
Tightening torque: 2.5 N·m (0.25 kg ⋅
⋅⋅
⋅
m /21.7 lb in)
Filler neck side except flat deck model.
• The band clip (Restore position and fasten
length of the band clip)
2. Install the fuel tank.
Note: Refer to "Fuel Tank" in this section.







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ISUZU KB P190 2007

ENGINE FUEL (C24SE) 6C-1
SECTION 6C
ENGINE FUEL (C24SE)
TABLE OF CONTENTS

General Description ............................................. 6C-2
Service Precaution ............................................... 6C-3
Fuel Metering ......................................................... 6C-4
Fuel Filter ................................................................ 6C-5
Removal ............................................................... 6C-5
Inspection ............................................................ 6C-6
Installation ........................................................... 6C-6
Inspection ............................................................ 6C-6
In-Tank Fuel Filter ............................................. 6C-6
Fuel Pump Flow Test ........................................ 6C-7
Fuel Pump ............................................................... 6C-8
Fuel Pump and Associated Parts .................. 6C-8
Removal ............................................................... 6C-8
Installation ........................................................... 6C-9
Fuel Tube / Quick - Connector Fittings ........... 6C-10
Precautions ......................................................... 6C-10
Cautions During Work ...................................... 6C-10

Removal .............................................................. 6C-10
Reuse of Quick-Connector ............................. 6C-11
Assembling Advice ........................................... 6C-11
Fuel Pump Relay ................................................... 6C-12
General Description ......................................... 6C-12
Fuel Tank ................................................................ 6C-13
Fuel Tank and Associated Parts ................... 6C-13
Removal .............................................................. 6C-14
Installation .......................................................... 6C-14
Filler Neck .............................................................. 6C-15
Removal .............................................................. 6C-15
Installation .......................................................... 6C-15
Fuel Gauge Unit .................................................... 6C-15
Removal and Installation ................................ 6C-15
Fuel Filler Cap ....................................................... 6C-16
General Description ......................................... 6C-16
Inspection ........................................................... 6C-16
Main Data and Specifications ............................ 6C-17
Special Tool ........................................................ 6C-18



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ISUZU KB P190 2007

6C-8 ENGINE FUEL (C24SE)
Fuel Pump
Fuel Pump and Associated Parts



RTW 46FMF000401
Legend (6) Fuel Tube/Quick Connector
(1) Fuel Feed Port (7) Retainer Ring (Fuel Pump Lock)
(2) Fuel Return Port (8) Seal; Fuel Pump
(3) Fuel Emission Port (9) Fuel Tank Assembly
(4) Fuel Pump and Sender Assembly (10) Evapo Tube/Quick Connector
(5) Connector; Fuel Feed Pump & Sender

Removal
CAUTION: When repair to the fuel system has been
completed, start engine and check the fuel system
for loose connection or leakage. For the fuel system
diagnosis, see Section “Driveability and Emission".
1. Remove fuel tank assembly (9). Refer to “Fuel Tank Removal" in this section.
2. Disconnect the quick connector (6) into the fuel tube from fuel pump.
3. Disconnect the quick connector (10) into the evapo tube from fuel pump.


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ISUZU KB P190 2007

ENGINE FUEL (C24SE) 6C-9
3. Remove the retainer ring (7) from the fuel tank
with the removal tool 5-8840-2602-0.




140R100035
4. Remove slowly the fuel pump (4) from the fuel
tank as no bend float arm.
NOTE: Cover opening for the fuel pump on fuel tank to
prevent any dust enthering.
5. Discard fuel pump seal (8) because it cannot be
reusable.
Installation
1. Clean the seal surface of the fuel tank and the fuel pump.
NOTE: If there is dust on the seal surface, it becomes
cause of fuel leak.
2. Install the new fuel pump seal (8) to opening of the fuel tank as along the groove.
3. Install slowly the fuel pump (4) into the fuel tank as no bend float arm.
4. Set flange of the fuel pump on fuel pump seal as
mating convexity of the fuel pump and reentrant o
f
the fuel tank.
5. Lock slowly the retainer ring (7) to the fuel tank
with the remover tool 5-8840-2602-0.
6. Connector the quick conector (10) into the evapo tube to fuel pump.
7. Connect the quick connector (6) into the fuel tube
to fuel pump.
NOTE: Pull off the left ckecker into the fuel pipe.
NOTE: Refer to “Fuel Tube/Quick Connector Fittings” in
this section when performing any repairs.

8. Check leak.
Methed of leak check.
(1) Plug end of quick connector and breather hose
(Pull off the breather hose from fuel tank) and
tighten fuel filler cap until at least one click are
heard.
(2)
Apply water soap around the fuel pump seal
area.
(3) Pressure air into the fuel tank from end o
f
breather pipe at 5psi (34.3 kPa/2.8kgf/cm2)
over 15 seconds.
(4) Verify no bubbles around the fuel pump seal
area.
8. Install the fuel tank assembly (9).
NOTE: Refer to “Install the fuel tank” in this section.





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ISUZU KB P190 2007

6C-10 ENGINE FUEL (C24SE)
Fuel Tube / Quick – Connector Fittings
Precautions
• Do not light a match or create a flame.
• Keep flames away from your work area to prevent
flammable materials from catching fire.
• Disconnect battery ground cable to prevent
electrical shorts.
• Pre-treat piping system or associated parts from
thermal damage or from spattering when welding
or similar heat-generating work.
Cautions During Work




140R100032
Legend
(1) O-ring
(2) Port
(3) Connector
(4) Plastic Tube

Do not expose the assembly to battery electrolyte or do
not wipe the assembly with a cloth used to wipe off spilt
battery electorolyte.
Piping that has been splattered with battery electrolyte
or battery electrolyte soaked cloth that was wiped on the
piping cannot be used.
Removal
1. Open the fuel cap to relieve the fuel pressure in the
tank.
Use compressed air to remove any dirt on the fuel
quick connect fittings prior to disconnecting the
fittings.





141R100002
W hen disconnecting the fuel pipe, cover the area
with a cloth to prevent fuel from splashing as the
fuel pipe may still have some pressure in it.
2. For removal of the quick connector, hold the quick
connector in one hand, and pull out the connento
r
with the other hand while pressing the square
relieve button of the connector, as illustrated.






140R100037
NOTE: Do not use tools of any kind. Only use bare
hands when disconnecting the connector. Use a
lubricant (light oil) and/or push and pull the connecto
r
until the pipe is disconnected.
Cover the connectors that was removed with a
plastic bag, to prevent dust or rain water from
entering.


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ISUZU KB P190 2007

6C-14 ENGINE FUEL (C24SE)
Removal
CAUTION: When repair to the fuel system has been
completed, start engine and check the fuel system
for loose connection or leakage. For the fuel system
diagnosis, see Section “Driveability and Emission".
1. Disconnect battery ground cable.
2. Loosen slowly the fuel filler cap.
NOTE: To prevent spouting out fuel to change the
pressure in the fuel tank.
NOTE: Cover opening of the filler neck to prevent an
y
dust entering.
3. Jack up the vehicle.
4. Support underneath of the fuel tank with a lifter.
5. Remove the inner liner of the wheel house on rea
r
left side.
6. Remove fasten bolt to the filler neck from the body.
7. Disconnect the quick connector (8) into the fuel
tube from the fuel pipe and the evapo tube from
evapo joint connector.
NOTE: Cover the quick connector to prevent any dust
entering and fuel leaking.
NOTE: Refer to “Fuel Tube/Quick Connector Fittings” in
this section when performing any repairs.
8. Remove fasten bolt (1) to the tank band and the tank band (2).
9. Disconnect the pump and sender connector on the
fuel pump and remove the harness from weld clip
on the fuel tank.
10. Lower the fuel tank (6).
NOTE: W hen the fuel tank is lowered from the vehicle,
don’t scratch each hose and tube by around other pars.


Installation
1. Rise the fuel tank into position.
NOTE: Ensure hoses and tubes do not foul on othe
r
component. 2. Connect the pump and sender connector to the
fuel pump and install harness to into the plastic clip
welded to the top of the fuel tank..
NOTE: The connector must be certainly connected
against stopper.
Ensure tank band anchor mates with guide hole on
frame.
3. Install the tank band to fasten bolt.
Torque: 68 N ⋅
⋅⋅
⋅
m (6.9kg ⋅
⋅⋅
⋅
m/50 lb ft)
NOTE: The anchor of the tank band must be certainl
y
installed to guide hole on frame. 4. Connect the quick connector from the fuel tube to
the fuel pipe and the evapo tube from evapo joint
connector.
NOTE: Pull off the left checker into the fuel pipe.
NOTE: Refer to “Fuel Tube/Quick Connector Fittings” in
this section when performing any repairs.
5. Install the filler neck to the body by bolt.
6. Install the inner liner of the wheel house on rea
r
side.
7. Remove lifter to support underneath of the fuel tank.
8. Put back the vehicle.
9. Tigten the filler cap until at least three clicks are
heard.
10. Connect the battery ground cable.



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ISUZU KB P190 2007