2002 ISUZU AXIOM Service Repair Manual

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Page 825 of 2100

ISUZU AXIOM 2002 Service Repair Manual 6A±15
ENGINE MECHANICAL (6VE1 3.5L)
Condition CorrectionPossible cause
Trouble in cylinder head partsCarbon deposits in combustion
chamberRemove carbon
Carbon deposit on valve, valve seat
and valve g

Page 826 of 2100

ISUZU AXIOM 2002 Service Repair Manual 6A±16
ENGINE MECHANICAL (6VE1 3.5L)
Engine Oil Consumption Excessive
ConditionPossible causeCorrection
Oil leakingOil pan drain plug looseRetighten or replace gasket
Crankcase fixing bolts loosenedRe

Page 827 of 2100

ISUZU AXIOM 2002 Service Repair Manual 6A±17
ENGINE MECHANICAL (6VE1 3.5L)
Fuel Consumption Excessive
ConditionPossible causeCorrection
Trouble in fuel systemMixture too rich or too lean due to
trouble in fuel injection systemRefer to ªA

6A±17
ENGINE MECHANICAL (6VE1 3.5L)
Fuel Consumption Excessive
ConditionPossible causeCorrection
Trouble in fuel systemMixture too rich or too lean due to
trouble in fuel injection systemRefer to ªAbnormal Combustionº
Fuel cut function does not workRefer to ªAbnormal Combustionº
Trouble in ignition systemMisfiring or abnormal combustion
due to trouble in ignition systemRefer to ªHard Startº or ªAbnormal
Combustionº
OthersEngine idle speed too highReset Idle Air Control Valve
Fuel system leakageCorrect or replace
Clutch slippingCorrect
Brake dragCorrect
Selection of transmission gear
incorrectCaution operator of incorrect gear
selection
Excessive Exhaust Gas
Recirculation flow due to trouble in
Exhaust Gas Recirculation systemRefer to ªAbnormal Combustionº
Lubrication Problems
ConditionPossible causeCorrection
Oil pressure too lowWrong oil in useReplace with correct engine oil
Relief valve stickingReplace
Oil pump not operating properlyCorrect or replace
Oil pump strainer cloggedClean or replace strainer
Oil pump wornReplace
Oil pressure gauge defectiveCorrect or replace
Crankshaft bearing or connecting
rod bearing wornReplace
Oil contaminationWrong oil in useReplace with correct engine oil
Oil filter cloggedReplace oil filter
Cylinder head gasket damageReplace gasket
Burned gases leakingReplace piston and piston rings or
cylinder body assembly
Oil not reaching valve systemOil passage in cylinder head or
cylinder body cloggedClean or correct
Engine Oil Pressure Check
1. Check for dirt, gasoline or water in the engine oil.
a. Check the viscosity of the oil.
b. Check the viscosity of the oil.
c. Change the oil if the viscosity is outside the
specified standard.
d. Refer to the ªMaintenance and Lubricationº section
of this manual.
2. Check the engine oil level.
The level should fall somewhere between the ªADDº
and the ªFULLº marks on the oil level dipstick.
If the oil level does not reach the ªADDº mark on the
oil level dipstick, engine oil must be added.3. Remove the oil pressure unit.
4. Install an oil pressure gauge.
5. Start the engine and allow the engine to reach normal
operating temperature (About 80C).
6. Measure the oil pressure.
Oil pressure should be:
392±550 kPa (56.9±80.4 psi) at 3000 rpm.
7. Stop the engine.
8. Remove the oil pressure gauge.
9. Install the oil pressure unit.
10. Start the engine and check for leaks.

Page 828 of 2100

ISUZU AXIOM 2002 Service Repair Manual 6A±18
ENGINE MECHANICAL (6VE1 3.5L)
Malfunction Indicator Lamp
The instrument panel ªCHECK ENGINEº Malfunction In-
dicator Lamp (MIL) illuminates by self diagnostic system
when the system checks th

Page 829 of 2100

ISUZU AXIOM 2002 Service Repair Manual 6A±19
ENGINE MECHANICAL (6VE1 3.5L)
Cylinder Head Cover LH
Removal
1. Disconnect battery ground cable.
2. Remove engine cover from the dowels on the
common chamber.
F06RY001
3. Disconnect positive cr

Page 830 of 2100

ISUZU AXIOM 2002 Service Repair Manual 6A±20
ENGINE MECHANICAL (6VE1 3.5L)
Installation
1. Install cylinder head cover.
Clean the sealing surface of cylinder head and
cylinder head cover to remove oil and sealing
materials completely.
A

Page 831 of 2100

ISUZU AXIOM 2002 Service Repair Manual 6A±21
ENGINE MECHANICAL (6VE1 3.5L)
Cylinder Head Cover RH
Removal
1. Disconnect battery ground cable.
2. Remove engine cover from the dowele on the
common chamber.
F06RY001
3. Disconnect ventilation

Page 832 of 2100

ISUZU AXIOM 2002 Service Repair Manual 6A±22
ENGINE MECHANICAL (6VE1 3.5L)
Common Chamber
Removal
1. Disconnect battery ground cable.
2. Remove air cleaner duct assembly.
013RY00001
Legend
(1) Positive Crankcase Ventilation Hose Connector

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