service OPEL FRONTERA 1998 Workshop Manual

5B–1 ANTI–LOCK BRAKE SYSTEM
BRAKES
ANTI-LOCK BRAKE SYSTEM
CONTENTS
Service Precaution 5B–1. . . . . . . . . . . . . . . . . . . . . .
Electronic Hydraulic Control Unit 5B–2. . . . . . . . . .
Electronic Hydraulic Control Unit and
Associated Parts 5B–2. . . . . . . . . . . . . . . . . . . . . .
Removal 5B–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5B–2. . . . . . . . . . . . . . . . . . . . . . . . . . . .
G-Sensor 5B–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 5B–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 5B–3. . . . . . . . . . . . . . . . . .
Installation 5B–3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Wheel Speed Sensor 5B–4. . . . . . . . . . . . . . . Front Wheel Speed Sensor and
Associated Parts 5B–4. . . . . . . . . . . . . . . . . . . . . .
Removal 5B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 5B–5. . . . . . . . . . . . . . . . . .
Installation 5B–5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Wheel Speed Sensor 5B–6. . . . . . . . . . . . . . .
Rear Wheel Speed Sensor and
Associated Parts 5B–6. . . . . . . . . . . . . . . . . . . . . .
Removal 5B–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 5B–6. . . . . . . . . . . . . . . . . .
Installation 5B–6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED 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.CAUTION: Replace all components included in
repair kits used to service this system. Lubricate
rubber parts with clean, fresh brake fluid to ease
assembly. Do not use shop air with in–line
lubricators on brake parts, as damage to rubber
components may result. If any hydraulic component
is removed or brake line disconnected, it may be
necessary to bleed part or all of the brake system.
NOTE: The use of rubber hoses or parts other than those
furnished specifically for the Anti–lock Brake System may
lead to functional problems requiring major overhaul.

6A–1
ENGINE MECHANICAL
ENGINE
CONTENTS
Engine Mechanical 6A. . . . . . . . . . . . . . . . . . . . . .
Engine Cooling 6B. . . . . . . . . . . . . . . . . . . . . . . . .
Engine Fuel 6C. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Electrical 6D1. . . . . . . . . . . . . . . . . . . . . . . .
Ignition System 6D2. . . . . . . . . . . . . . . . . . . . . . . . .
Starting and Charging System 6D3. . . . . . . . . . . . Driveability and Emissions 6E. . . . . . . . . . . . . . . .
Engine Exhaust 6F. . . . . . . . . . . . . . . . . . . . . . . . .
Engine Lubrication 6G. . . . . . . . . . . . . . . . . . . . . .
Engine Speed Control System 6H. . . . . . . . . . . .
Inducton 6J. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE MECHANICAL
CONTENTS
Service Precaution 6A–2. . . . . . . . . . . . . . . . . . . . . .
General Description 6A–3. . . . . . . . . . . . . . . . . . . . .
Engine Diagnosis 6A–4. . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head Cover LH 6A–18. . . . . . . . . . . . . . . . .
Removal 6A–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–19. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head Cover RH 6A–21. . . . . . . . . . . . . . . . .
Removal 6A–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–22. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Common Chamber 6A–24. . . . . . . . . . . . . . . . . . . . . .
Removal 6A–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–24. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust Manifold LH 6A–26. . . . . . . . . . . . . . . . . . . . .
Removal 6A–26. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–26. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust Manifold RH 6A–27. . . . . . . . . . . . . . . . . . . .
Removal 6A–27. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–27. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankshaft Pulley 6A–28. . . . . . . . . . . . . . . . . . . . . . .
Removal 6A–28. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–28. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timing Belt 6A–29. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6A–29. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–30. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Camshaft 6A–33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6A–33. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–33. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head 6A–37. . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6A–37. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–37. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Stem Oil Controller , Valve Spring and
Valve Guide 6A–39. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6A–39. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–39. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Piston, Piston Ring and Connecting Rod 6A–40. . . Removal 6A–40. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–41. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankshaft and Main Bearings 6A–42. . . . . . . . . . . .
Removal 6A–42. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–43. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Oil Seal 6A–47. . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6A–47. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–47. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Assembly 6A–48. . . . . . . . . . . . . . . . . . . . . . . .
Removal 6A–48. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6A–48. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head 6A–52. . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Head and Associated Parts 6A–52. . . . .
Disassembly 6A–52. . . . . . . . . . . . . . . . . . . . . . . . . .
Clean 6A–53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6A–53
. . . . . . . . . . . . . . . . . .
Reassembly 6A–53. . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Spring, Oil Controller, Valve,
Valve Guide 6A–56. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Spring, Oil Controller, Valve,
Valve Guide and Associated Parts 6A–56. . . . . . .
Disassembly 6A–56. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6A–57. . . . . . . . . . . . . . . . . .
Reassembly 6A–60. . . . . . . . . . . . . . . . . . . . . . . . . .
Valve Clearance Adjustments 6A–61. . . . . . . . . . . . .
Camshaft 6A–63. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Camshaft and Associated Parts 6A–63. . . . . . . . .
Disassembly 6A–63. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6A–64. . . . . . . . . . . . . . . . . .
Reassembly 6A–66. . . . . . . . . . . . . . . . . . . . . . . . . .
Crankshaft 6A–69. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Crankshaft and Associated Parts 6A–69. . . . . . . .
Disassembly 6A–69. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6A–70. . . . . . . . . . . . . . . . . .
Inspection and Repair 6A–71. . . . . . . . . . . . . . . . . .
Reassembly 6A–73. . . . . . . . . . . . . . . . . . . . . . . . . .

6A–2
ENGINE MECHANICAL
Piston and Connecting Rod 6A–77. . . . . . . . . . . . . . .
Piston, Connecting Rod and Associate
Parts 6A–77. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly 6A–77. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6A–78. . . . . . . . . . . . . . . . . .
Reassembly 6A–82. . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Block 6A–85. . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinder Block and Associated Parts 6A–85. . . . .
Disassembly 6A–85. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 6A–86. . . . . . . . . . . . . . . . . .
Reassembly 6A–87. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specification 6A–90. . . . . . . . . . . . . .
Special Tool 6A–96. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED 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.

6A–3
ENGINE MECHANICAL
General Description
Engine Cleanliness And Care
An automobile engine is a combination of many
machined, honed, polished and lapped surfaces with
tolerances that are measured in the thousandths of a
millimeter (ten thousandths of an inch). Accordingly,
when any internal engine parts are serviced, care and
cleanliness are important. Throughout this section, it
should be understood that proper cleaning and protection
of machined surfaces and friction areas is part of the
repair procedure. This is considered standard shop
practice even if not specifically stated.
A liberal coating of engine oil should be applied to all
friction areas during assembly to protect and lubricate
the surfaces on initial operation.
Whenever valve train components, pistons, piston
rings, connecting rods, rod bearings, and crankshaft
journal bearings are removed for service, they should
be retained in order.
At the time of installation, they should be installed in
the same locations and with the same mating
surfaces as when removed.
Battery cables should be disconnected before any
major work is performed on the engine. Failure to
disconnect cables may result in damage to wire
harness or other electrical parts.
The six cylinders of this engine are identified by
numbers; Right side cylinders 1, 3 and 5, Left side
cylinders 2, 4 and 6, as counted from crankshaft
pulley side to flywheel side.
General Information on Engine Service
The following information on engine service should be
noted carefully, as it is important in preventing damage
and contributing to reliable engine performance:
When raising or supporting the engine for any reason,
do not use a jack under the oil pan. Due to the small
clearance between the oil pan and the oil pump
strainer, jacking against the oil pan may cause
damage to the oil pick–up unit.
The 12–volt electrical system is capable of damaging
circuits. When performing any work where electrical
terminals could possibly be grounded, the ground
cable of the battery should be disconnected at the
battery.
Any time the intake air duct or air cleaner is removed,
the intake opening should be covered. This will
protect against accidental entrance of foreign
material into the cylinder which could cause extensive
damage when the engine is started.
Cylinder Block
The cylinder block is made of aluminum die–cast casting
for 75
V–type six cylinders. It has a rear plate integrated
structure and employs a deep skint. The cylinder liner is
cast and the liner inner diameter and crankshaft journal
diameter are classified into grades. The crankshaft is
supported by four bearings of which width of No.3 bearing
on the body side is different in order to support the thrust
bearing. The bearing cap is made of nodular cast iron and
each bearing cap uses four bolts and two side bolts.
Cylinder Head
The cylinder head, made of aluminum alloy casting
employs a pent–roof type combustion chamber with a
spark plug in the center. The intake and exhaust valves
are placed in V–type design. The ports are cross–flow
type.
Va l v e Tr a i n
Intake and exhaust camshaft on the both side of banks
are driven through an camshaft drive gear by timing belt.
The valves are operated by the camshaft and the valve
clearance is adjusted to select suitable thickness shim.
Intake Manifold
The intake manifold system is composed of the aluminum
cast common chamber and intake manifold attached with
six fuel injectors.
Exhaust Manifold
The exhaust manifold is made of nodular cast iron.
Pistons and Connecting Rods
Aluminum pistons are used after selecting the grade that
meets the cylinder bore diameter. Each piston has two
compression rings and one oil ring. The piston pin is made
of chromium steel is offset 1mm toward the thrust side,
and the thrust pressure of piston to the cylinder wall varies
gradually as the piston travels. The connecting rods are
made of forged steel. The connecting rod bearings are
graded for correct seze selection.
Crankshaft and Bearings
The crankshaft is made of Ductile cast–iron. Pins and
journals are graded for correct size selection for their
bearing.
Engine Lubrication
The oil discharged by a trochoid–type oil pump driven by
the crankshaft is fed through full–flow oil filter and to the oil
gallery provided under the crankshaft bearing cap. The oil
is then led to the crankshaft journals and cylinder head.
The crank pins are lubricated with oil from crankshaft
journals through oil holes. Also, an oil jet is fed to each
cylinder from crankshaft juornals on the connecting rod
for piston cleaning. The oil pan flange is dealed with liquid
packing only; do not deform or damage the flange surface
during removal or installation.

6A–78
ENGINE MECHANICAL
015RS031
Remove any ridge or carbon build up from the top
end of the cylinder.
9. Remove the piston rings (8) with a piston ring
expander. Arrange the removed piston rings in the
cylinder number order.
015RS022
10. Remove the piston pin (9) using 5–8840–0551–0
piston pin service set and piston support with a press.
NOTE: Keep the parts removed from each cylinder
separate. All parts must be reinstalled in their original
positions. Heating the connecting rod will permit easy
removal of the piston pin.
015RX001
Legend
(1) Press Ram
(2) Piston
(3) Connecting Rod
(4) Piston Pin
11. Piston (10)
12. Connecting rod (11)
Inspection and Repair
Pistons (10)
Carefully clean away all the carbon adhering to the piston
head and the piston ring grooves.
NOTE: Never use a wire brush to clean the pistons.
Damage will result. Visually check each piston for
cracking, scoring, and other signs of excessive wear. If
any of the above conditions are found, the piston must be
replaced.
Piston Diameter
1. Measure the piston outside diameter with micrometer
at the piston grading position and a right angle to the
piston pin.
Piston grading position (from piston head)
Piston grading position : 43.0 mm (1.6929 in)

6A–83
ENGINE MECHANICAL
Attach the piston to the connecting rod with the
piston front mark and the connecting rod front mark
on the same side.
015RS036
With 5–8840–0551–0 Piston pin service set and a
press, press fit the piston pin.
NOTE: Heat the connecting rod small end to a suitable
temperature to ensure smooth installation.
015RX001
Legend
(1) Press Ram
(2) Piston
(3) Connecting Rod
(4) Piston Pin
4. Install piston ring with the piston ring expander.
The compression ring must be set with the T mark (1)
facing up.
Marked T : No.1 Compression ring
Marked T2 : No.2 Compression ring
015RS027
Install piston rings in the following sequence.
1. Oil ring
1. Expander ring
2. Upper side rail
3. Lower side rail
2. 2nd compression ring
3. 1st compression ring
The compression rings must be set with the T or T2
mark facing up.
Marked T : No.1 Compression ring
Marked T2 : No.2 Compression ring
After installation, apply engine oil to the entire
circumference of the piston rings. Check to see that
all the rings rotate smoothly.
015RS038
5. Install piston and connecting rod assembly.
Insert the bearings into the connecting rods and
caps. Apply new engine oil to the bearing faces and
nuts.

ENGINE COOLING6B–1
ENGINE
ENGINE COOLING
CONTENTS
Service Precaution 6B–1. . . . . . . . . . . . . . . . . . . . . .
General Description 6B–2. . . . . . . . . . . . . . . . . . . . .
Diagnosis 6B–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Draining and Refilling Cooling System 6B–6. . . . .
Water Pump 6B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Water Pump and Associated Parts 6B–7. . . . . . .
Removal 6B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 6B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermostat 6B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermostat and Associated Parts 6B–8. . . . . . . .
Removal 6B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 6B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation 6B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator 6B–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator and Associated Parts 6B–9. . . . . . . . . .
Removal 6B–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 6B–10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6B–11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Belt and Cooling Fan 6B–12. . . . . . . . . . . . . . .
Drive Belt and Associated Parts 6B–12. . . . . . . . .
Inspection 6B–12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6B–12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 6B–13. . . . . . . . . . . . .
Special Tool 6B–14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED 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.

6B–6
ENGINE COOLING
Draining and Refilling Cooling
System
Before draining the cooling system, inspect the system
and perform any necessary service to ensure that it is
clean, does not leak and is in proper working order. The
engine coolant (EC) level should be between the “MIN”
and “MAX” lines of reserve tank when the engine is cold.
If low, check for leakage and add EC up to the “MAX” line.
There should not be any excessive deposit of rust or
scales around the radiator cap or radiator filler hole, and
the EC should also be free from oil.
Replace the EC if excessively dirty.
1. Completely drain the cooling system by opening the
drain plug (2) at the bottom of the radiator.
110RW002
2. Remove the radiator cap.
WARNING: TO AVOID THE DANGER OF BEING
BURNED, DO NOT REMOVE THE CAP WHILE THE
ENGINE AND RADIATOR ARE STILL HOT.
SCALDING FLUID AND STEAM CAN BE BLOWN OUT
UNDER PRESSURE.
3. Disconnect all hoses from the EC reserve tank.
Scrub and clean the inside of the reserve tank with
soap and water. Flush it well with clean water, then
drain it. Install the reserve tank and hoses.
4. Refill the cooling system with the EC using a solution
that is at least 50 percent antifreeze but no more than
70 percent antifreeze.
5. Fill the radiator to the base of the filler neck.
Fill the EC reserve tank to “MAX” line when the engine
is cold.
6. Block the drive wheels and firmly apply the parking
brake. Shift an automatic transmission to “P” (Park)
or a manual transmission to neutral.
7. Remove the radiator cap. Start the engine and warm
it up at 2,500
3,000 rpm for about 30 minutes.
8. When the air comes out from the radiator filler neck
and the EC level has gone down, replenish with the
EC. Repeat this procedure until the EC level does not
go down. Then stop the engine and install the radiator
cap. Let the engine cool down.9. After the engine has cooled, replenish with EC up to
the “MAX” line of the reserve tank.
10. Start the engine. With the engine running at 3,000
rpm, make sure there is no running water sound from
the heater core (behind the center console).
11. If the running water sound is heard, repeat steps 8 to
10.

6C–1
ENGINE FUEL
ENGINE
ENGINE FUEL
CONTENTS
Service Precaution 6C–1. . . . . . . . . . . . . . . . . . . . . .
General Description 6C–2. . . . . . . . . . . . . . . . . . . . .
Fuel Metering 6C–3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Filter 6C–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Filter and Associated Parts 6C–4. . . . . . . . .
Removal 6C–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 6C–4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6C–5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 6C–5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
In–Tank Fuel Filter 6C–5. . . . . . . . . . . . . . . . . . . . .
Fuel Pump Flow Test 6C–5. . . . . . . . . . . . . . . . . . .
Fuel Pump 6C–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Pump and Associated Parts 6C–6. . . . . . . .
Removal 6C–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6C–6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Pump Relay 6C–7. . . . . . . . . . . . . . . . . . . . . . . .
General Description 6C–7. . . . . . . . . . . . . . . . . . . . .
Fuel Tank 6C–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuel Tank and Associated Parts 6C–7. . . . . . . . .
Removal 6C–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6C–8. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Tube / Quick – Connect Fittings 6C–8. . . . . . .
Precautions 6C–8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Cautions During Work 6C–8. . . . . . . . . . . . . . . . . .
Removal 6C–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reuse of Quick–Connector 6C–10. . . . . . . . . . . . . . .
Assembling Advice 6C–10. . . . . . . . . . . . . . . . . . . . . .
Fuel Gauge Unit 6C–11. . . . . . . . . . . . . . . . . . . . . . . .
Fuel Gauge Unit and Associated Parts 6C–11. . .
Removal 6C–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 6C–11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel Filler Cap 6C–12. . . . . . . . . . . . . . . . . . . . . . . . . .
General Description 6C–12. . . . . . . . . . . . . . . . . . . . .
Inspection 6C–12. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 6C–12. . . . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED 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.

ENGINE ELECTRICAL6D1–1
ENGINE
ENGINE ELECTRICAL
CONTENTS
Service Precaution 6D1–1. . . . . . . . . . . . . . . . . . . . . .
Battery 6D1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Description 6D1–2. . . . . . . . . . . . . . . . . . . .
Diagnosis 6D1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Charging 6D1–3. . . . . . . . . . . . . . . . . . . . . . Jump Starting 6D1–3. . . . . . . . . . . . . . . . . . . . . . . . .
Battery Removal 6D1–4. . . . . . . . . . . . . . . . . . . . . .
Battery Installation 6D1–4. . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 6D1–5. . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED 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.