sensor ISUZU KB P190 2007 Workshop Repair Manual

Engine Mechanical – V6 Page 6A1–218
Page 6A1–218
Left-hand Side (Bank 2) Cylinder Head
1 Remove the intake manifold assembly, refer to 3.10 Intake Manifold Assembly – Complete .
2 Remove the exhaust manifold, refer to 3.11 Exhaust Manifold Assembly.
3 Remove the power steering reservoi r and pump mounting brackets, refer to 3.8 Power Steering Pump Bracket.
NOTE
Do not disconnect the power steering pipes
and/or hoses.
4 Remove the oil filter adapter upper bolt. NOTE
Do not remove the oil filter adapter.
5 Remove the engine coolant temper ature (ECT) sensor, refer to Section 6C1-3 Engine Management – V6 – Service
Operations .
6 Remove engine harness ground terminal attach ing bolt from cylinder head, refer to Section 8A Electrical Body &
Chassis .
7 Remove the left-hand bank secondary timing chain, refer to 3.16 Timing Chains, Tensioners, Shoes and Guides.
8 Remove the camshaft position actuators, refer to 3.18 Camshaft Sprocket.
9 Remove the front M8 (1) cylinder head attaching bolt, two places.
10 Remove the cylinder head attaching bolt (2), eight places.
11 Remove the cylinder head (3).


Figure 6A1 – 367
12 Remove and discard the cylinder head gasket (1).


Figure 6A1 – 368

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Engine Mechanical – V6 Page 6A1–240
Page 6A1–240
Remove
1 Remove the skid plate.
2 Drain the radiator coolant, refer to Section 6B1 Engine Cooling – V6.
3 Disconnect the battery negative and positive terminal, refer to Section 8A Electrical Body & Chassis.
4 Remove the battery from the vehicle.
5 Depressurise the fuel sy stem pressure, refer to Section 6C Fuel System – V6 .
6 Make alignment marks on the bonnet and hinges in order to return the bonnet to the exact original position.
7 Remove the bonnet, refer to Section 2B Sheet Metal.
8 Remove the rubber hose (2) and air duct (1).


Figure 6A1 – 407

9 Disconnect the barometric sensor connector (1).

Figure 6A1 – 408

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–244
Page 6A1–244
28 Remove the centre exhaust pipe (1), refer to
Section 6F Exhaust System - V6 .


Figure 6A1 – 417
29 Disconnect the two post-catalytic converter oxygen sensor wiring harness connectors, 1 each bank.



Figure 6A1 – 418
30 Disconnect the two pre-catalytic converter oxygen sensor wiring harness connectors, 1 each bank.
31 Remove the front exhaust flange nuts, three each bank.
32 Remove the front left-hand exhaust pipe from the rubber mount.

33 Remove the front exhaust pipes from the vehicle, for further information, refer to Section 6F Exhaust
System - V6 .

Figure 6A1 – 419
34 Remove the transfer case from t he vehicle (4WD Only), refer to Section 7D Transfer Case and Adaptor Housing .

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–246
Page 6A1–246

Figure 6A1 – 423
Figure 6A1 – 424
42 Fit the engine lifting brackets (1), (EN–46114) and attach the engine hoist, raise the engine to take the weight off the engine mounts.

Engine Lift Bracket Attaching Bolt
torque specification
............................................................. 58.0 – 72.0.0 Nm

43 Remove the left-hand side knock sensor (1).

Figure 6A1 – 425
NOTE
Removal or the starter motor is only required for
vehicles with an Automatic Transmission.

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Engine Mechanical – V6 Page 6A1–248
Page 6A1–248
50 Unplug the connector from the oil level sensor (1).
51 Remove the attaching bolt (2) holding the ground cable to the engine block.


Figure 6A1 – 429
52 Remove the accessory drive belt using a socket wrench (1), to reduce tension rotate the drive belt
tensioner (2) clockwise, then while holding the
tensioner in the reduced tens ion position, remove the
accessory drive belt (3).


Figure 6A1 – 430
53 Remove the power steering pump bolts (two places),
remove the pump (1) from the mounting bracket and
disconnect the power steering hoses (two places)
from the pump body.

NOTE
Plug the open ends of the power steering hoses
to prevent the ingre ss of contaminants.

Figure 6A1 – 431

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Engine Mechanical – V6 Page 6A1–251
Page 6A1–251
61 Remove the air cleaner cover assembly including the
MAF sensor assembly (1).
62 Remove the air cleaner filt er (2) from the air cleaner
body assembly (3).

Figure 6A1 – 438
63 Disconnect the ECM connectors (1).

Figure 6A1 – 439
64 Disconnect the canister hose (1).

Figure 6A1 – 440

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Engine Mechanical – V6 Page 6A1–252
Page 6A1–252
65 Remove the engine mount attaching nuts (1), (two
places) on the chassis si de of the left-hand and right-
hand engine mounts.


Figure 6A1 – 441
66 Slowly raise the engine using the engine hoist continue to lift and manoeuvre the engine assembly
clear of the engine compartment.

Figure 6A1 – 442
Disassemble
1 Remove the wiring harness connectors and ground connec tions from the engine and transmission assembly and
carefully set the wiring harness to one side, refer to Section 8A Electrical Body & Chassis.
2 Remove the engine control module (ECM) and mounting bracket, refer to Section 6C1-3 Engine Management – V6
– Service Operations .
3 Mount the engine assembly on a suitable engine stand.
5 Drain the engine oil into a suitable, clean container.
6 Remove the following components: a Oil filter adaptor, refer to 3.3 Oil Filter Adaptor.
b Engine coolant inlet pipe, refer to Section 6B1 Engine Cooling – V6.
c Heater pipe assembly, refer to Section 6B1 Engine Cooling – V6.
d Thermostat assembly, refer to Section 6B1 Engine Cooling – V6.
e Exhaust manifold a ssemblies, refer to 3.11 Exhaust Manifold Assembly .
f Engine coolant outlet pipe, refer to Section 6B1 Engine Cooling – V6.
g Crankshaft position sensor, refer to Section 6C1-3 Engine Management – V6 – Service Operations.
h Knock sensors, refer to Section 6C1-3 Engine Management – V6 – Service Operations.
i Engine mounts and brackets, refer to 3.23 Engine Mounts and Brackets.
j Flexplate assemblies, refer to 4.3 Flexplate Assembly.

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Engine Mechanical – V6 Page 6A1–253
Page 6A1–253
k Timing chains, tensioners, shoes, guides & sprockets, refer to 3.16 Timing Chains, Tensioners, Shoes and
Guides .
l Cylinder head assemblies, refer to 3.22 Cylinder Head Assembly.
m Oil pan assembly, refer to 4.2 Oil Pan and Oil Pump Suction Pipe Assembly .
n Piston and connecting rod assemblies, refer to 4.5 Pistons, Pins, Rings, Connecting Rods and Big-end
Bearings .
o Crankshaft assembly, refer to 4.6 Crankshaft and Main Bearings.
p Piston oil nozzles, refer 4.5 Pistons, Pins, Rings, Connecting Rods and Big-end Bearings .
Reassemble
Reassembly of the engine assembly is the reverse of the disassembly procedure.
Reinstall
Reinstallation of the engine assembly is the revers e to the removal procedure, noting the following:
NOTE
Refer to 6 Torque Wrench Specifications for the
correct torque specifications.
1 Tighten the fasteners to the co rrect torque specification.
Engine ground connector bolt
torque specificat ion ............................................ 10.0 Nm
Power steering high pressure line
attaching bolt torque specification ............. 8.0 – 12.0 Nm
Power steering high pressure line
flare nut torque specif ication ................... 25. 0 – 35.0 Nm
Engine mount to frame attaching bolt
torque specification ................................. 44. 0 – 60.0 Nm
Knock Sensor Attaching Nut
torque specification ............................................ 23.0 Nm
2 Use only the specified engine lubricant type and quantity. It is recommended that a fluorescent oil dye, such as that
contained in J 28481-B, be added to assist in any future oil leak diagnosis.
3 Fill the cooling system with the corre ct quantity and grade of coolant, refer to Section 6B1 Engine Cooling – V6.
4 Check transmission fluid level, replenishing as required, using the specified lubricant for the transmission fitted,
refer to Section 7C1 Automatic – 4L60E – General Information .
5 Disable the ignition system, refer to Section 6C1-3 Engine Management – V6 – Service Operations.
6 Crank the engine several times. Listen for any unusual noises or evidence that parts are binding.
7 Enable the ignition system. Start t he engine and listen for any unusual noises.
8 Check the vehicle oil pressure gauge or warning indica tor and confirm the engine has acceptable oil pressure. If
required, install an oil pressure gauge and m easure the engine oil pressure, refer to 2.19 Engine Oil Pressure
Diagnosis .
9 Run the engine at about 1,000 r. p.m. until the engine has reached normal operating temperature.
10 Listen for any unusual noises.
11 Check for oil, fuel, coolant and exhaust leaks wh ile the engine is running, correcting as required.
12 Perform a final inspection for correct engine oil and coolant levels.


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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–255
Page 6A1–255
Disassemble
1 Remove the following:
2 Oil pan drain plug (7) and sleeve (8).
3 Oil level sensor (9).
4 Crankshaft oil deflector bolts (6) and remove the deflector.
5 Oil pump suction pipe bolts (5) and the suction pipe (3).
6 Oil pump suction pipe gasket (4) from the suction pipe and discard.

Figure 6A1 – 444
Clean
1 Remove any remaining thread sealant, gasket material or sealant using a commercially available wooden or plastic
scraper.
2 Clean the oil pan and oil pan components in solvent.
3 Clean out debris from the bolt holes.

Safety glasses must be worn when using
compressed air.
4 Dry the oil pan and oil pan components with compressed air.

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ISUZU KB P190 2007

Engine Mechanical – V6 Page 6A1–256
Page 6A1–256
Inspect
1 Inspect the exterior of the oil pan for the following
conditions:
• Damage to the drain plug or drain plug hole,
• Damage to the transmission mounting bosses,
• Damage to the oil level sensor threads, and
• Dents or damage to the exterior.
2 Inspect the interior of the oil pan for the following conditions:
• Gouges or damage to the oil pan sealing
surfaces,
• Damage to the crankshaft oil deflector,
• Damage to the bolt holes,
• Damage to the oil suction tube mounting
bosses, and
• Damage to the crankshaft oil deflector mounting
bosses.

Figure 6A1 – 445
3 Inspect the oil pan deflector for damage.
4 Repair or replace the o il pan deflector and/or oil pan
as required.


Figure 6A1 – 446
5 Inspect the following:
6 The mounting face (1) of the oil pump suction pipe for possible leakage paths.
7 The oil pump pipe support bracket (2) for cracks or damage.
8 The oil pump suction pipe tube (3) for cracks, imperfections and/or damage.
9 The oil pump screen (4) for blockage, foreign material, tears, cracks and/or damage.
10 Repair or replace the oil pan and/or oil pan components as required.


Figure 6A1 – 447

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