2007 ISUZU KB P190 sensor

Engine Mechanical – V6 Page 6A1–189

28 Remove the centre exhaust pipe (1), refer to 6F
Exhaust System - V6 - V6.

Figure 6A1 – 327
29 Disconnect the two post-catalytic converter oxygen sensor wiring harness connectors, 1 each bank.


Figure 6A1 – 328
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 6F Exhaust System - V6.
Figure 6A1 – 329
34 Remove the transfer case from the vehicle (4W D Only), refer to 7D Transfer Case and Adaptor Housing.

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Engine Mechanical – V6 Page 6A1–191

Figure 6A1 – 332
Figure 6A1 – 333 Figure 6A1 – 334
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 – 335
NOTE
Removal or the starter motor is only required for
vehicles with an Automatic Transmission.

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Engine Mechanical – V6 Page 6A1–192



44 Remove the left-hand side engine mount (1), (automatic transmission only).

Figure 6A1 – 336
45 Unclip the oil level sensor harness from the heat shield (1).
a Remove the heat shield retaining screw (2).
b Remove the lower starter motor attaching bolt (3).
c Remove the heat shield.
d Remove the upper starter motor retaining bolt (3).
46 Remove the starter motor from the engine block and lower the starter motor as far as possible to gain
access to the wiring harness connections.
47 Remove the starter motor, (automatic transmission only).
Figure 6A1 – 337
48 Reinstall the left-hand side engine mount (1), (automatic transmission only).
49 Remove the transmission assembly, refer to 7C1 Automatic – 4L60E – General Information.



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Engine Mechanical – V6 Page 6A1–193

Figure 6A1 – 338
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 – 339
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 tension position, remove the
accessory drive belt (3).

Figure 6A1 – 340
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 ingress of contaminants.
Figure 6A1 – 341

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Engine Mechanical – V6 Page 6A1–196

61 Remove the air cleaner cover assembly including the
MAF sensor assembly (1).
62 Remove the air cleaner filter (2) from the air cleaner body assembly (3).
Figure 6A1 – 348
63 Disconnect the ECM connectors (1).
Figure 6A1 – 349
64 Disconnect the canister hose (1).
Figure 6A1 – 350

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Engine Mechanical – V6 Page 6A1–197

65 Remove the engine mount attaching nuts (1), (two
places) on the chassis side of the left-hand and right-
hand engine mounts.

Figure 6A1 – 351
66 Slowly raise the engine using the engine hoist continue to lift and manoeuvre the engine assembly
clear of the engine compartment.
Figure 6A1 – 352
Disassemble
1 Remove the wiring harness connectors and ground connections from the engine and transmission assembly and carefully set the wiring harness to one side, refer to 8A Electrical Body & Chassis.
2 Remove the engine control module (ECM) and mounting bracket, refer to 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 6B1 Engine Cooling – V6.
c Heater pipe assembly, refer to 6B1 Engine Cooling – V6.
d Thermostat assembly, refer to 6B1 Engine Cooling – V6.
e Exhaust manifold assemblies, refer to 3.11Exhaust Manifold Assembly.
f Engine coolant outlet pipe, refer to 6B1 Engine Cooling – V6.
g Crankshaft position sensor, refer to 6C1-3 Engine Management – V6 – Service Operations.
h Knock sensors, refer to 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 6A1–198

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 reverse 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 correct torque specification.
Engine ground connector bolt
torque specification ............................................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 specification ...................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 correct quantity and grade of coolant, refer to 6B1 Engine Cooling – V6.
4 Check transmission fluid level, replenishing as required, using the specified lubricant for the transmission fitted, refer to 7C1 Automatic – 4L60E – General Information.
5 Disable the ignition system, refer to 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 the engine and listen for any unusual noises.
8 Check the vehicle oil pressure gauge or warning indicator and confirm the engine has acceptable oil pressure. If required, install an oil pressure gauge and measure 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 while the engine is running, correcting as required.
12 Perform a final inspection for correct engine oil and coolant levels.

4.2 Oil Pan and Oil Pump Suction Pipe Assembly
Remove
1 Remove the engine assembly from the vehicle, refer to 4.1 Engine .
2 Separate the engine and transmission assemblies, refer to 7C1 Automatic – 4L60E – General Information.
3 Mount the engine assembly on a suitable engine stand.
4 Remove the engine front cover, refer to 3.15 Front Cover Assembly.

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Engine Mechanical – V6 Page 6A1–200

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 – 354
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