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SYMPTOM
Reference
section
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Engine Cylinder head
55555 5 5 5
EM-77, EM-88
and EM-104
Cylinder head gasket 2 2
Cylinder block
66666 6 6 6
3Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Valve
mechanism
Timing chain
6
6666 6 6 6
Camshaft
Intake valve
2
Exhaust valve
Hydraulic lash adjuster
Exhaust Exhaust manifold/Tube/Muffler/
Gasket
66666 6 6 6 FE-9
Three way catalyst
Lubrication Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery
66666 6 6 62
MA-29, EM-72
and LC-20
Oil level (Low/Filthy) oil MA-29
Cooling Radiator/Hose/Radiator filler cap
66666 6 6 26
LC-26
Thermostat 5 5
Water pump
Water gallery
Cooling fan 5 5
Coolant level (low)/Contaminated
coolant
MA-26
1 - 6: The numbers refer to the order of inspection.
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
VG33E
Symptom Matrix Chart (Cont’d)
EC-713
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
GI
MA
EM
LC
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