This manual provides explanations, etc. concerning
procedures for the inspection, maintenance, repair
and servicing of the subject model. Note, however,
that for engine and transmission-related component
parts, this manual covers only on-vehicle inspec-
tions, adjustments, and the removal and installation
procedures for major components. For detailed infor-
mation concerning the inspection, checking, adjust-
ment, disassembly and reassembly of the engine,
transmission and major components after they have
been removed from the vehicle, please refer to sepa-
rate manuals covering the engine and the transmis-
sion.
ON-VEHICLE SERVICE
"On-vehicle Service" is procedures for performing
inspections and adjustments of particularly important
locations with regard to the construction and for
maintenance and servicing, but other inspection (for
looseness, play, cracking, damage, etc.) must also
be performed.

INSPECTION
Under this title are presented inspection and check-
ing procedures to be performed by using special
tools and measuring instruments and by feeling, but,
for actual maintenance and servicing procedures,
visual inspections should always be performed as
well.

DEFINITION OF TERMS

STANDARD VALUE
Indicates the value used as the standard for judging
the quality of a part or assembly on inspection or the
value to which the part or assembly is corrected and
adjusted. It is given by tolerance.

LIMIT
Shows the standard for judging the quality of a part
or assembly on inspection and means the maximum
or minimum value within which the part or assembly
must be kept functionally or in strength. It is a value
established outside the range of standard value.

REFERENCE VALUE
Indicates the adjustment value prior to starting the
work (presented in order to facilitate assembly and
adjustment procedures, and so they can be com-
pleted in a shorter time).

DANGER, WARNING, AND CAUTION
DANGER, WARNING, and CAUTION call special
attention to a necessary action or to an action that
must be avoided. The differences among DANGER,
WARNING, and CAUTION are as follows:

• If a DANGER is not followed, the result is severe

bodily harm or even death.

• If a WARNING is not followed, the result could be

bodily injury.

• If a CAUTION is not followed, the result could be

damage to the vehicle, vehicle components or
service equipment.

INDICATION OF TIGHTENING TORQUE

Tightening torques (units: N

⋅m) are set to take into

account the central value and the allowable toler-
ance. The central value is the target value, and the
allowable tolerance provides the checking range for
tightening torques. If bolts and nuts are not provided
with tightening torques.

MODEL INDICATIONS

The following abbreviations are used in this manual
for identification of model types.
2500:Indicates an engine with the 2,477mL <4D56>

diesel engine.

2WD:Indicates the 2-wheel drive vehicles.
4WD:Indicates the 4-wheel drive vehicles.
A/C:Indicates the air conditioner.
A/T:Indicates the automatic transmission.
DOHC: Indicates an engine with the double over-

head camshaft.

M/T:Indicates the manual transmission.

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