engine ISUZU TROOPER 1998 Service Repair Manual

6G±13 ENGINE LUBRICATION
Oil Filter
Removal
1. Disconnect battery ground cable.
2. Drain engine oil.
3. Remove oil filter using 5-8840-0203-0 filter wrench.
Installation
1. Clean filter fitting surface and apply small amount of
engine oil to sealing surface.
2. Install oil filter cartridge by hand until it comes in
contact with sealing surface then rotate additional 2/3
turn to tighten using 5-8840-0203-0 filter wrench.
050RW001
Legend
(1) Oil Pump
(2) Oil Filter
(3) Oil Gallery
(4) From Filter
(5) To Filter
3. Fill engine oil until full level on dipstick.
4. Reconnect battery ground cable.

6G±14
ENGINE LUBRICATION
Main Data and Specification
General Specification
ItemSpecificationsItem6VD16VE1
Oil capacity5.3 liters
Torque Specifications
Crankcase, Oil pan, Timing belt tensioner, Timing
pulley, timing belt cover, Oil pump, Oil gallery, Oil
strainer N´m (Kg´m/lb ft)
E06RW045

6G±15 ENGINE LUBRICATION
Special Tool
ILLUSTRATIONTOOL NO.
TOOL NAME
5±8840±2287±0
(J±39202)
Installer; Oil pump oil
seal
5±8840±2153±0
(J±37228)
Seal cutter
5±8840±2005±0
(J±29107)
Universal pitman arm
puller
5±8840±0203±0
(J±36390)
Wrench; Oil filter

6H±1 ENGINE SPEED CONTROL SYSTEM
ENGINE
ENGINE SPEED CONTROL SYSTEM
CONTENTS
Service Precaution 6H±1. . . . . . . . . . . . . . . . . . . . . .
Accelerator Pedal Control Cable 6H±2. . . . . . . . . .
Removal 6H±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 6H±2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6H±2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment 6H±2. . . . . . . . . . . . . . . . . . . . . . . . . . . Accelerator Pedal 6H±3. . . . . . . . . . . . . . . . . . . . . . .
Accelerator Pedal and Associated Parts 6H±3. .
Removal 6H±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6H±3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment 6H±3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Precaution
WARNING: I F S O E Q U IPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.

6H±2
ENGINE SPEED CONTROL SYSTEM
Accelerator Pedal Control Cable
Removal
1. Loosen the adjusting nut(5) on the cable bracket
mounted on the common chamber.
2. Remove cable clip(3).
3. Disconnect accelerator pedal (AP) control cable(6).
(on throttle valve side)
4. Disconnect AP control cable(1). (on AP pedal(7) side)
5. Remove molding cap(2).
6. Remove AP control cable(4).
101RW001
Inspection
Check the following items, and replace the control cable if
any abnormality is found:

The control cable should move smoothly.

The control cable should not be bent or kinked.

The control cable should be free of damage and
corrosion.
Installation
1. Install AP control cable(4).
2. Install molding cap(2).
3. Connect AP control cable(1). (on AP side)
4. Connect AP control cable(6). (on throttle valve side)
5. Install cable clip(3).
6. Install adjusting nut(5).
101RW001
Adjustment
1. Loosen adjusting nut and lock nut.
2. Pull outer cable while closing fully the throttle valve.
3. Tighten adjusting nut and lock nut temporarily.
4. Loosen adjusting nut by three turns and tighten lock
nut.
Then, manually operating the throttle valve, make
sure that the valve lever returns up to the stopper
screw.
If it does not reach the stopper screw, repeat from
step 1.
035RW004
Legend
(1) Clearance
(2) Lock Nut
(3) Adjusting Nut

6H±3 ENGINE SPEED CONTROL SYSTEM
Accelerator Pedal
Accelerator Pedal and Associated
Parts
035RW028
Legend
(1) Accelerator Pedal Control Cable
(2) Accelerator Pedal Assembly
Removal
1. Accelerator Pedal control cable(1).
2. Accelerator Pedal assembly(2).
Installation
1. Accelerator pedal assembly(2).
2. Accelerator pedal control cable(1).
Adjustment
Manual Transmission:

Rotate counterclockwise to loosen the lock nut and
screw the stopper bolt in sufficiently.

Fully depress the pedal and hold it there with your
hand. Next, rotate the stopper bolt until it hits the
stopper of pedal bracket. Then, lock the stopper bolt
there.
Automatic Transmission:

Rotate counterclockwise to loosen the kickdown
switch sufficiently.

Fully depress the pedal and hold it there with your
hand. Rotate the switch clockwise and then rotate
further by 1/2 turn from the position where the switch
clicks. Lock the switch there.

Step on the accelerator pedal and make sure that you
can hear a clicking sound at the full stroke position.

6H±4
ENGINE SPEED CONTROL SYSTEM
MEMO

INDUCTION6J±1
ENGINE
INDUCTION
CONTENTS
Service Precaution 6J±1. . . . . . . . . . . . . . . . . . . . . .
Air Cleaner Element 6J±2. . . . . . . . . . . . . . . . . . . . .
Removal 6J±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 6J±2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6J±2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Precaution
WARNING: I F S O E Q U IPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM
(SRS),REFER TO THE SRS COMPONENT AND
WIRING LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE PERFORMING SERVICE
ON OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED, do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener. When
you install fasteners, use the correct tightening
sequence and specifications. Following these
instructions can help you avoid damage to parts and
systems.

00 Ð 2 SERVICE INFORMATION
TROUBLESHOOTING
CONTENTS
PAGE
Hard Starting ................................................................................................................... 00- 3
Starter Motor Inoperative ........................................................................................... 00- 3
Starter Motor Operates but Engine does not turn over ........................................... 00- 3
Engine turns over but does not start ......................................................................... 00- 4
Quick-on Start System (QOS III) ................................................................................. 00- 5
Unstable Idling ................................................................................................................. 00- 5
Insufficient Power ............................................................................................................ 00- 7
Excessive Fuel Consumption .......................................................................................... 00- 9
Excessive Oil Consumption ............................................................................................. 00- 9
Overheating ...................................................................................................................... 00-10
White Exhaust Smoke ..................................................................................................... 00-10
Dark Exhaust Smoke ........................................................................................................ 00-11
Oil Pressure Does Not Rise .............................................................................................. 00-11
Abnormal Engine Noise ................................................................................................... 00-12
Engine Knocking .......................................................................................................... 00-12
Gas Leakage noise ....................................................................................................... 00-12
Continuous noise ......................................................................................................... 00-12
Slapping noise .............................................................................................................. 00-13
Engine Cooling Trouble ................................................................................................... 00-14
Engine Electrical ............................................................................................................... 00-15
Starter does not run .................................................................................................... 00-15
Faulty Meshing or Pinion and Ring Gear ................................................................... 00-16
Magnetic Switch does not operate though starter switch is turned to ÒStart (ST)Ó ...00-17
Pinion Meshes with ring gear but engine does not run ........................................... 00-18
Starter does not stop though starter switch is returned to ÒONÓ .......................... 00-19

SERVICE INFORMATION 00 Ð 3
1. HARD STARTING
Checkpoint Possible cause Correction
Battery Loose battery cable terminal
Poor connections due to rustingClean and/or retighten the battery
cable terminal
1. STARTER MOTOR INOPERATIVE
Battery discharged or weak Recharge or replace the battery
Fan belt loose or broken Adjust or replace the fan belt
Fusible link Fusible link shorted Replace the fusible link
Starter switch Defective starter switch or starter relay Replace the starter switch or the
starter relay
Starter motor Defective magnetic switch or starter relay Repair or replace the magnetic
switch
Defective starter motor Repair or replace the starter motor
2. STARTER MOTOR OPERATES BUT ENGINE DOES NOT TURN OVER
Battery Loose battery cable terminal
Poor connections due to rustingClean and/or retighten the battery
cable terminal
Battery discharged or weak Recharge or replace the battery
Fan belt loose or broken Adjust or replace the fan belt
Starter motor Defective pinion gear Replace the pinion gear
Defective magnetic switch Repair or replace the magnetic
switch
Brush wear, Weak brush spring Replace the brush and/or the brush
spring
Engine Piston, crank bearing seizuer, or other
damageRepair or replace the related parrts