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SERVICE INFORMATION
GENERAL
DRIVETRAIN SYSTEM
•
This "Drivetrain System" section covers service of the Automatic Transmission
(AfT)
system and drive mode
(2WD,
4WD with the rear differential locked, 4WD wi th the
fr
ont and rear differentials locked)
select
or.
•
A faulty drivetrain system is often related to poorly connected or corroded connectors. Check those connections before
proceeding.
•
Read "Drivetrain Troubleshooting
Infor
mation" carefully, and inspect and troubleshoot the drivetrain system according
to the
Ole.
Observe each step of the procedures
one
by one. Note the OTe and probable faulty part before starting
diagnosis and troubleshooting.
•
The peM may be damaged if dropped. Also,
jf
a
connector
is disconnected when current is flowing, the excessive volt-
age may damage the PCM
.
Always turn off the ignition switch before servicing.
•
The engine must be removed from the frame when servicing the torque converter and 1st shift clutch. To service the
mainshaft and 2nd/3rd shift clutch
(countershaft),
the crankcase halves must be separated (page 13-6).
•
The engine oil is used for
AfT
oil. Lubrication system service (oil pump and oil cooler) (page 5-2).
•
AfT
and lubricating oil is fed through the oit passage in the front crankcase cover. Clean the oil passages before install-
ing the crankcase cover.
•
Be careful not to damage the crankcase and cover mating surfaces when serviCing.
•
Replace the torque converter as an assembly
if
it is
f
aulty.
•
Front
final clutch and differential lock clutch service (page 19-17).
•
Rear differential lock clutch service
(page
20-15).
•
Drive mode selector lever service (page 19-42).
•
Sub-transmission (Forwa rd-Neutral-Reverse) service
(page
12-2).
For Drivetrain System Troubleshooting
The
dr
ivetrain system is controlled by the PCM. Therefore some detection items that are shared in the PGM-FI and
drivetrain systems, and they may affect the operation of both systems.
Before starting any troubleshooting, check the fo
l
lowing items and refer to the appropriate troubleshooting.
1. MIL blinks or DTC for the
PGM-FI system
and
AfT
system
(page
6- 12).
2. Symptom troubleshooting of the
AfT
system (page 14-6).
SPECIFICATIONS
Unit· mm (in)
I
ITEM
I
STANDARD
SERVICE
LIMIT
Oil
pressure
I
785 kPa
(8.0
kgflcm~-;1
1
4
psi)
at 5,000 rpm
t-
Line
1 st, 2nd and 3rd clutch
i
785 kPa
(8.0
kgflcm
,
114 psi)
Shift clutch
Initial clearance
0.7
0.9
(0.03
0.04)
(1st,
2nd and
Disc thickness
1.88-
2.00 (0.074
0.079)
worn out
lining-
3rd)
Plate thickness
1.95--- 2.05 (0.077
0.081)
discoloration
I
Return spring free length
33.8 (1.33)
31.8
(1.25)
TORQUE VALUES
Oil path bolt
Primary driven gear lock
nut
Stator shaft inner collar stopper pin
Torque converter lock nut
Oil feed pipe setting cap
EaT sensor
18 N'm
(1.8
kgf·m, 13 Ibl-ft)
108 N'm (11.0 kgf·m, 80 Ibf·ft)
14 N'm
(1.4
kgf·m, 10 Ibf.ft)
118 N'm (12.0 kgf·m, 87Ibf·ft)
21 N·m (2.1 kgf·
m
, 15Ibf·ft)
12 N'm
(1.2
kgf-m, 9 Ibf·ft)
Lock
nut: replace with a new one.
App
ly engine oil
t
o the t
h
reads and seating sur-
face. Stake.
Apply locking agent to the threads.
Lock nut: replace with a new one.
Apply engine oil to the
th
reads and seating sur-
face. Stake.
14-3
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Table of Contents
Troubleshooting
