2004 ISUZU TF SERIES battery location

6E-370 3.5L ENGINE DRIVEABILITY AND EMISSIONS
ENGINE COOLANT TEMPERATURE
(ECT) SENSOR

Location
Installed to the thermostat housing.

Removal Procedure
1. Disconnect the negative battery cable.
2. Drain enough engine coolant so that the coolan
t
level will be below the ECT sensor.
3. Disconnect connector from the ECT sensor.
4. Loosen and remove the ECT sensor from the
thermostat housing.
NOTE:
Cool down the engine before above procedures are
carried out.










Installation Procedure
1. Apply sealer to threads of screw at the ECT
sensor.
2. Tighten the ECT sensor with specified tightening
torque.
Tightening Torque





13N




m (1.3kgf




m)
3. Connect a ECT sensor connector to the ECT
sensor.
4. Fill the engine coolant.
5. Connect the negative battery cable.

NOTE:
Verify any DTCs (diagnosis Trouble Code) are not
stored after replacement.
Verify no engine coolant leaking from the senso
r
threads after replacement.


MASS AIR FLOW (MAF) SENSOR &
INTAKE AIR TEMPERATURE (IAT)
SENSOR
Location
Installed to the intake duct housing.

Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect a MAF & IAT sensor connector from
the MAF & IAT sensor.
3. Loosen two screws and remove the MAF & IAT
sensor from the intake duct.





Installation Procedure
1. Install the MAF & IAT sensor into intake air duct.
2. Tighten MAF & IAT sensor by two screws.
Tightening Torque : 1.5 N




m (0.15 kgf




m)
3. Connect a sensor connector to the MAF & IAT
sensor.
4. Connect the negative battery cable.

NOTE:
Verify any DTCs (diagnosis Trouble Code) are not
stored after replacement.

3.5L ENGINE DRIVEABILITY AND EMISSIONS 6E-371
THROTTLE POSITION SENSOR
(TPS)

Location
Installed on the throttle body.

Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the TPS connector.
3. Loosen two screws and remove TPS from the
throttle body.




Installation Procedure
1. Temporary tighten the TPS by two screws.
2. Connect a TPS connectors to the TPS.
3. Connect the Tech2 to the vehicle.
4. Connect the negative battery cable.
5. Select "Data Display" with the Tech2.
6. Check the throttle position data and adjust the TPS
position.
7. Tighten two screws.

NOTE:
Verify any DTCs (diagnosis Trouble Code) are not
stored after replacement.



IDLE AIR CONTROL (IAC) VALVE

Location
Installed on the throttle body.

Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the IAC valve connector.
3. Loosen two screws and remove IAC valve from
the throttle body.




Cleaning and Inspection
1. Clean the IAC valve O-ring sealing surface, pintle
valve seat and air passage.
2. Use carburetor cleaner and a parts cleaning brush
to remove carbon deposit.
Do not use a cleaner that contain methyl ethyl
ketone. This is an extremely strong solvent and no
t
necessary for this type of deposit.
3. Shiny spots on the pintle are normal and do no
t
indicate misalignment or a bent pintle shaft.
4. Inspect the IAC valve O-ring for cuts, cracks o
r
distortion.

6E-372 3.5L ENGINE DRIVEABILITY AND EMISSIONS
Measurement
In order to install a new IAC valve, messier the distance
between the tip of the pintle and the mounting flange. I
f
that measurement is 28mm (1.1in.) or less, the valve
need no adjustment. If the measurement is greater than
28mm (1.1in.), apply finger pressure and retract the
valve. The force required to retract the pintle on a ne
w
valve will not damage the valve, shaft, or pintle.




28mm(1.1in.)
or less


Installation Procedure
1. Tighten the IAC valve by two screws.
2. Connect a IAC valve connector to the IAC valve.
3. Connect the negative battery cable.

NOTE:
Verify any DTCs (diagnosis Trouble Code) are not
stored after replacement.


HEATED OXYGEN SENSOR (HO2S)

Location
Installed on the exhaust pipe for each bank.

Removal Procedure
1. Disconnect the negative battery cable.
2. Disconnect the O2 sensor connector.
3. Loosen and remove the O2 sensor from the
exhaust pipe.



Bank 1 Heated Oxygen Sensor (Right bank)



Bank 2 Heated Oxygen Sensor (Left bank)

3.5L ENGINE DRIVEABILITY AND EMISSIONS 6E-373
Inspection
 Inspect the louvered end of the sensor for grease,
dirt, excessive carbon build up or othe
r
contamination.
 A special anti-seize compound is used on the O2
sensor threads. This compound consists of glass
breads suspended in a liquid graphite solution.
The graphite burns away with engine heat, but the
glass breads will remain, marking the senso
r
easier to remove.
 New or service sensors will already have the
compound applied to the threads. If a sensor is
removed and is to be reinstalled for any reason,
the threads must have anti-seize compound
applied.


Installation Procedure
1. Install the O2 sensor to the exhaust pipe.
Apply anti-seize compound or the equivalent to the
threads of the oxygen sensor, if necessary.
2. Tighten the O2 sensor with specified tightening
torque.
Tightening Torque





Bolt: 42N




m (4.3kgf




m)
3. Connect a sensor connector to the O2 sensor.
4. Connect the negative battery cable.

NOTE:
Verify any DTCs (diagnosis Trouble Code) are not
stored after replacement.
Verify no exhaust gas leaking from the senso
r
threads after replacement.



EVAP CANISTER PURGE VALVE
SOLENOID

Location
On the intake manifold.

Removal Procedure
1. Disconenct the negative battery cable.
2. Disconnect a purge solenoid connector from the
purge solenoid.
3. Disconnect two hoses from the purge solenoid
valve.
4. Loosen a bolt and remove the purge solenoid from
the intake manifold.






Installation Procedure
1. Put on the purge solenoid on the intake manifold.
2. Tighten the purge solenoid by a bolt.
3. Connect a connector to the purge solenoid.
4. Connect two hoses to the purge solenoid valve.
5. Connect the negative battery cable.

NOTE:
Verify any DTCs (diagnosis Trouble Code) are not
stored after replacement.
Verify proper connection of two hoses.

6A-4 ENGINE MECHANICAL (C24SE)
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 surfaced 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 four cylinders of this engine are identified by numbers; cylinders 1, 2, 3 and 4, as counted from crankshaft
pulley.
General Information on Engine Service
The following information on engine service should be noted carefully, as it is important in preventing damage and

6A-12 ENGINE MECHANICAL (C24SE)
Engine - General C24SE
Fuel system Electronically controlled Multi Port Fuel Injection System
Fuel pump type Electric
Fuel pressure kg/cm2 (psi/Pa) 3.4 (48.4/334)
Fuel filter type Cartridge paper element
Air cleaner type Dry paper element
Battery Type/V-Ax No. of units 34B19L/50D20L
Alternator
Capacity V-A(W) 12-90 (1080), 12-100 (1200)
Starter
Output V-kW 1.4
Exhaust system CO Adjustment (1) Applicable to Open Loop System (Not equipped H2OS)
(2) Not applicable to Closed Loop System (Equipped H2OS)
Compression Ratio (with Tolerance) 9.6:10.25
Cylinder Head Material Aluminum Alloy (gravity cast)
Cylinder Block Material Cast Iron
No. of Mounting Points (including trans.) 3
Engine Installation Angles
-Longitudinal4 60'
-Lateral 7 50' (towards exhaust side)
Overall Dimensions (L




W




H):
- TF (2.4Litre/2WD) 610
564
708mm
- TF (2.4Litre/4WD) 610
564
746mm
Engine Weight
Engine Weight
- TF (2.4Liter/Man)140kg
Camshaft Type SOHC
No. of Valves per Cylinder
- Inlet1
- Exhaust 1
Spark Plug Location Side
Port Arrangement Cross Flow
Working Principle Spark Ignition 4-stroke

ENGINE FUEL (C24SE) 6C-3


When working on the fuel system, there are several things to
keep in mind:


Any time the fuel system is being worked on, disconnect the
negative battery cable except for those tests where battery
voltage is required.


Always keep a dry chemical (Class B) fire extinguisher near
the work area.

Replace all pipes with the same pipe and fittings that were
removed.

Clean and inspect "O" rings. Replace if required.


Always relieve the line pressure before servicing any fuel
system components.

Do not attempt repairs on the fuel system until you have
read the instructions and checked the pictures relating to
that repair.

Adhere to all Notices and Cautions.
All gasoline engines are designed to use only unleaded
gasoline. Unleaded gasoline must be used for proper emission
control system operation.
Its use will also minimize spark plug fouling and extend engine
oil life. Using leaded gasoline can damage the emission control
system and could result in loss of emission warranty coverage.
All cars are equipped with an Evaporative Emission Control
System. The purpose of the system is to minimize the escape
of fuel vapors to the atmosphere.



Service Precaution
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 othe
r
corrosion inhibitors) on threaded fasteners or fastene
r
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.

6D1-2 ENGINE ELECTRICAL

Battery
General Description
There are six battery fluid caps on top of the battery.
These are covered by a paper label.
The battery is completely sealed except for the six small vent
holes on the side. These vent holes permit the escape of small
amounts of gas generated by the battery.
This type of battery has the following advantages over
conventional batteries:
1. There is no need to add water during the entire service life
of the battery.
2. The battery protects itself against overcharging.
The battery will refuse to accept an extensive charge.
(A conventional battery will accept an excessive charge,
resulting in gassing and loss of battery fluid.)
3. The battery is much less vulnerable to self discharge than a
conventional type battery.



Service Precaution
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.