2004 ISUZU TF SERIES engine oil

6E-366 3.5L ENGINE DRIVEABILITY AND EMISSIONS
BACKFIRE SYMPTOM
DEFINITIONS: Fuel ignites in the intake manifold, or in
the exhaust system, making a loud popping noise.



Step Action Value (s) Yes No
1
Was the "On-Board Diagnostic (OBD) System Check"
performed?
- Go to Step 2 Go to On Board
Diagnostic (OBD)
System Check
2
1. Perform a bulletin search.
2. If a bulletin that addresses the symptom is found,
correct the condition as instructed in the bulletin.
Was a bulletin found that addresses the symptom?
- Verify repair Go to Step 3
3
Was a visually/physical check performed?
- Go to Step 4 Go to Visual /
physical Check.
4
Check for proper ignition voltage output with the spark
tester.
Was a problem found?
- Verify repair Go to Step 5
5
Check the ignition coils for cracks or carbon tracking.
If a problem is found, repair as necessary.
Was a problem found?
- Verify repair Go to Step 6
6
1. Remove the spark plugs and check for gas or oil
fouling cracks, wear, improper gap, burned
electrodes, heavy deposits, or improper heat
range.
2. If spark plugs are fouled, the cause of fouling must
be determined before replacing the spark plugs.
Was a problem found?
- Verify repair Go to Step 7
7
Check the fuel pressure. Refer to Fuel System
Pressure Test.
Was a problem found?
- Verify repair Go to Step 8
8
Refer to 6E-116 page Fuel System Diagnosis to
determine if there is a problem with fuel delivery.
Was a problem found?
- Verify repair Go to Step 9
9
Check the CKP sensor signal, shield wire, or
installation condition. Refer to DTC P0336 "Crankshaft
Position Sensor Circuit Range/Performance" and DTC
P0337 "Crankshaft Position Sensor Circuit No Signal".
Was a problem found?
- Verify repair Go to Step 10

3.5L ENGINE DRIVEABILITY AND EMISSIONS 6E-369
CRANKSHAFT POSITION (CKP)
SENSOR

Location
Right-hand side of the cylinder block.

Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect connector from the CKP sensor.
3. Loosen a bolt and remove the CKP sensor from
the cylinder block.
NOTE:
Use caution to avoid any hot oil that might drip out.




Installation Procedure
1. Install the CKP sensor to the cylinder block.
Before installation, apply small amount of engine
oil to the O-ring.
2. Tighten CKP sensor by a bolt with specified
tightening torque.
Tightening Torque





Bolt: 10N




m (1.0kgf




m).
3. Connect a sensor connector to the CKP sensor.
4. Connect the negative battery cable.

NOTE:
Verify any DTCs (diagnosis Trouble Code) are not
stored after replacement.

CAMSHAFT POSITION (CMP)
SENSOR

Location
The rear of right bank of the cylinder head.

Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect connector from the CMP sensor.
3. Loosen a bolt and remove the CMP sensor from
the cylinder head.





Installation Procedure
1. Install the CMP sensor to the cylinder head.
Before installation, apply small amount of engine
oil to the O-ring.
2. Tighten CMP sensor by a bolt with specified
tightening torque.
Tightening Torque





Bolt: 10N




m (1.0kgf




m)
3. Connect a sensor connector to the CMP sensor.
4. Connect the negative battery cable.

NOTE:
Verify any DTCs (diagnosis Trouble Code) are not
stored after replacement.

3.5L ENGINE DRIVEABILITY AND EMISSIONS 6E-375
3. Install the common chamber. Refer to common
chamber in engine Mechanical.




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4. Connect the vacuum hose on Canister Solenoid
and positive crankcase ventilation hose.
5. Connect the connectors to, solenoid valve.
6. Connect the accelerator pedal cable to throttle
body and cable bracket.
7. Install the engine cover.
8. Connect the negative battery cable.
9. Crank the engine until it starts. Cranking the
engine may take longer than usual due to trapped
air in the fuel rail and in the injectors.

FUEL INJECTORS

Removal Procedure
NOTE: If the fuel injectors are leaking, the engine oil
may be contaminated with fuel. Check the oil fo
r
signs of contamination and change the oil and the
filter if necessary.
NOTE: Use care in removing the fuel injectors in
order to prevent damage to the fuel injecto
r
electrical connector pins or the fuel injector
nozzles. The fuel injector is an electrical component
and should not be immersed in any type of cleane
r
as this may damage the fuel injector.
Important: Fuel injectors are serviced as a complete
assembly only.
1. Disconnect the negative battery cable.
2. Remove the upper intake manifold. Refer to
Common Chamber in Engine Mechanical..
3. Remove the fuel rail. Refer to Fuel Rail.




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6E-376 3.5L ENGINE DRIVEABILITY AND EMISSIONS
4. Remove the injector retainer clip.






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5. Remove the fuel injector assembly.
6. Remove the O-ring from the fuel injector.
7. Remove the O-ring backup from the fuel injector .

Inspection Procedure
1. Inspect the O-rings for cracks or leaks.
2. Replace worn or damaged O-rings.
3. Lubricate the new O-rings with engine oil before
installation.

Installation Procedure
1. Install the O-ring backup on the fuel injector.
2. Install the new O-ring on the fuel injector.
3. Install the fuel injector on the fuel rail.






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4. Use new fuel injector retainer clips to retain the fuel
injector to the fuel rail.
5. Coat the end of the fuel injector with engine oil.
6. Install the fuel rail. Refer to Fuel Rail.




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7. Install the upper intake manifold. Refer to Common
Chamber in Engine Mechanical.
8. Install the engine cover.
9. Connect the negative battery cable.

3.5L ENGINE DRIVEABILITY AND EMISSIONS 6E-379
IGNITION COIL

Removal Procedure
1. Disconnect battery ground cable.
2. Ignition coil connector and ignition coil.
 Disconnect three connector from ignition coil.
 Remove harness bracket bolt on cylinder head
cover.
 Remove fixing bolts on ignition coil.




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Legend
(1) Ignition Coil Connector
(2) Bolt
(3) Ignition Coil Assembly


Inspection Procedure
Check the ignition coil assembly for insulation. Check
terminals for corrosion or damage, and replace as
necessary.
Measuring resistance of ignition coil assembly.


Terminal No. Limit
1 to 2 Without 0 ohm or infinity
maximum ohm.
1 to 3 Same as above
2 to 3 Same as above


Measure resistance of ignition coil assembly, and
replace the ignition coil assembly if its value exceeds
the standard.





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Installation Procedure
1. Install the ignition coil assembly (3).
Connect ignition coil connector (1) and ignition coil
(3), then tighten bolt (2) to the specified torque.
Torque: 4 N




m (0.4 kg




m/35 lb in)





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2. Connect battery ground cable.

6E-380 3.5L ENGINE DRIVEABILITY AND EMISSIONS
SPARK PLUGS

Removal Procedure
1. Remove spark plugs.

Inspection Procedure
The spark plug affects entire engine performance and
therefore its inspection is very important.
 Check electrode and insulator for presence o
f
cracks, and replace if any.
 Check electrode for wear, and replace if necessary.
 Check gasket for damage, and replace if necessary.
 Measure insulation resistance with an ohmmeter,
and replace if faulty.
 Adjust spark plug gap to 1.0 mm (0.04 in)

1.1 mm
(0.043 in).
 Check fuel and electrical systems if spark plug is
extremely dirty.
 Use spark plugs having low heat value (hot type
plug) if fuel and electrical systems are normal.
 Use spark plugs having high heat value (cold type
plug) if insulator and electrode are extremely
burned.
Sooty Spark Plugs
Much deposit of carbon or oil on the electrode and
insulator of spark plug reduces the engine performance.
Possible causes:
 Too rich mixture
 Presence of oil in combustion chamber
 Incorrectly adjusted spark plug gap
Burning Electrodes
This fault is characterized by scorched or heavily
oxidized electrode or blistered insulator nose.
Possible causes:
 Too lean mixture
 Improper heat value

Measuring Insulation Resistance
 Measure insulation resistance using a 500 volt
megaohm meter.
 Replace spark plugs if measured value is out o
f
standard.
Insulation resistance: 50 M
  or more




011RS010
Cleaning Spark Plugs
 Clean spark plugs with a spark plug cleaner.
 Raise the ground electrode to an angle of 45 to 60
degrees. If electrode is wet, dry it before cleaning.

After spark plug is thoroughly cleaned, check
insulator for presence of cracks.
 Clean threads and metal body with a wire brush.
 File the electrode tip if electrode is extremely worn.

ENGINE LUBRICATION (6VE1 3.5L) 6G-1
ENGINE
ENGINE LUBRICATION (6VE1 3.5L)
CONTENTS

Service Precaution................................................. 6G-1
General Description............................................... 6G-2
Oil Pump.................................................................. 6G-3
Oil Pump and Associated Parts........................ 6G-3
Disassembly........................................................ 6G-4
Inspection and Repair........................................ 6G-4
Reassembly......................................................... 6G-5
Oil Pan and Crankcase.......................................... 6G-7
Removal............................................................... 6G-7

Installation............................................................. 6G-7
Oil Pump.................................................................. 6G-9
Removal................................................................ 6G-9
Installation............................................................. 6G-9
Oil Pump Oil Seal.................................................... 6G-11
Removal................................................................ 6G-11
Installation............................................................. 6G-11
Main Data and Specification.................................. 6G-12


Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLEMENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE
SRS COMPONENTS OR THE SRS WIRING, REFE
R
TO THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN
POSSIBLE AIR BAG DEPLOYMENT, PERSONAL
INJURY, OR OTHERWISE UNNEEDED SRS SYSTEM
REPAIRS.


CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, o
r
other corrosion inhibitors) on threaded fasteners o
r
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener.
When you install fasteners, use the correct
tightening sequence and specifications. Following
these instructions can help you avoid damage to
parts and systems.

6G-2 ENGINE LUBRICATION (6VE1 3.5L)
General Description



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Legend (10) Connecting Rod Bearing
(1) Oil Strainer (11) Connecting Rod
(2) Oil Pump (12) Piston
(3) Relief Valve (13) Oil Gallery; Cylinder Head
(4) Oil Pressure Switch (14) Camshaft
(5) Oil Filter (15) Camshaft Journal
(6) Safety Valve (16) Front Journal; Camshaft Drive Gear
(7) Oil Gallery (17) Rear Journal; Camshaft Drive Gear
(8) Crankshaft Bearing (18) Oil Pan