1996 TOYOTA LAND CRUISER Engine no stop

EM0KR−04
−
ENGINE MECHANICAL COMPRESSION
EM−3
506
Author: Date:
1996 LAND CRUISER (RM451U)
COMPRESSION
INSPECTION
HINT:
If there is lack of power, excessive oil consumption or poor fuel
economy, measure the compression pressure.
1. WARM UP AND STOP ENGINE
Allow the engine to warm up to normal operating temperature.
2. DISCONNECT DISTRIBUTOR CONNECTOR
3. REMOVE SPARK PLUGS (See page IG−1 )
4. CHECK CYLINDER COMPRESSION PRESSURE
(a) Insert a compression gauge into the spark plug hole.
(b) Fully open the throttle.
(c) While cranking the engine, measure the compression pressure.
HINT:
Always use a fully charged battery to obtain engine speed of
250 rpm or more.
(d) Repeat steps (a) through (c) for each cylinder.
NOTICE:
This measurement must be done in as short a time as pos-
sible. Compression pressure:
1,176 kPa (12.0 kgf/cm
2, 171 psi) or more
Minimum pressure: 883 kPa (9.0 kgf/cm
2, 128 psi)
Difference between each cylinder:
98 kPa (1.0 kgf/cm
2, 14 psi) or less
If the cylinder compression in one or more cylinders is low, pour
a small amount of engine oil into the cylinder through the spark
plug hole and repeat steps (a) through (c) for cylinders with low
compression.
If adding oil helps the compression, it is likely that
the piston rings and/or cylinder bore are worn or
damaged.
If pressure stays low, a valve may be sticking or
seating is improper, or there may be leakage past
the gasket.
5. REINSTALL SPARK PLUGS (See page IG−1 )
6. RECONNECT DISTRIBUTOR CONNECTOR
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MA02Q−04
MA−2
−
MAINTENANCE INSIDE VEHICLE
42
Author: Date:
1996 LAND CRUISER (RM451U)
INSIDE VEHICLE
GENERAL MAINTENANCE
The owners are responsible for these maintenance and inspection items.
They can be done by the owner or they can have them done at a service sh\
op.
These items include those which should be checked on a daily basis, thos\
e which, in most cases, do not
require (special) tools and those which are considered to be reasonabl\
e for the owner to do.
Items and procedures for general maintenance are as follows.
1. GENERAL NOTES
Maintenance items may vary from country to country. Check the owner’s manual supplement in which
the maintenance schedule is shown.
Every service item in the periodic maintenance schedule must be performe\
d.
Periodic maintenance service must be performed according to whichever interval in\
the periodic main-
tenance schedule occurs first, the odometer reading (miles) or the time inter\
val (months).
Maintenance service after the last period should be performed at the same interval \
as before unless
otherwise noted.
Failure to do even one item can cause the engine to run poorly and incre\
ase exhaust emissions.
2. LIGHTS
(a) Check that the headlights, stop lights, taillights, turn signal lights, \
and other lights are all working.
(b) Check the headlights aim.
3. WARNING LIGHTS AND BUZZERS
Check that all warning lights and buzzers function properly.
4. HORN
Check that it is working.
5. WINDSHIELD
Check for scratches, pits or abrasions.
6. WINDSHIELD WIPER AND WASHER
(a) Check operation of the wipers and washer.
(b) Check that the wipers do not streak.
7. WINDSHIELD DEFROSTER
Check that air comes out from the defroster outlet when operating the heater \
or air conditioner at defroster
mode.
8. REAR VIEW MIRROR
Check that it is mounted securely.
9. SUN VISORS
Check that they move freely and mounted securely.
10. STEELING WHEEL
Check that it has the specified freeplay. Be alert for changes in steering condition, such as hard steering,
excessive freeplay or strange noises.
11. SEATS
(a) Check that all front seat controls such as seat adjusters, seatback recl\
iner, etc. operate smoothly.
(b) Check that all latches lock securely in any position.
(c) Check that the head restraints move up and down smoothly and that the lo\
cks hold securely in any latch position.
(d) For folding −down rear seat backs, check that the latches look securely.
12. SEAT BELTS
(a) Check that the seat belt system such as buckles, retractors and anchors operat\
e properly and smooth-
ly.
(b) Check that the belt webbing is not cut, frayed, worn or damaged.
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PP300−01
PP−2
−
PREPARATION ENGINE MECHANICAL
51
Author: Date:
1996 LAND CRUISER (RM451U)
ENGINE MECHANICAL
SST (Special Service Tools)
09201−10000Valve Guide Bushing Remover &
Replacer Set
(09201−01070)Valve Guide Bushing Remover &
Replacer 7
09202−70020Valve Spring Compressor
(09202−00010)Attachment
09213−58012Crankshaft Pulley Holding Tool
09223−15030Oil Seal & Bearing ReplacerCrankshaft rear oil seal
09236−00101Water Pump Overhaul Tool Set
(09236−15010)Bearing StayValve stem oil seal
09248−06020Valve Lifter Stopper
09248−55050Valve Clearance Adjust Tool Set
(09248−05510)Valve Lifter Press
09316−60011Transmission & Transfer Bearing
Replacer
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Z07254
M3 M4 M1 M2
Z07255
Wire Harness Side
SA−102
−
SUSPENSION AND AXLE DIFFERENTIAL LOCKING SYSTEM
959
Author: Date:
1996 LAND CRUISER (RM451U)
(6) Check the voltage between the terminals of the Diff.
lock ECU when switching the Diff. lock control
switch with the speedometer, registering approx. 8
km/h (5 mph) or more.
(7) Check that the indicator lights blink when center Diff. lock release mode is set.
Diff. lock is released for both the front wheels and
rear wheels at this time.
(8) Return the Diff. lock control switch to OFF.
(9) Stop the engine and lower the vehicle.
2. INSPECT DIFF. LOCK SYSTEM CIRCUIT
(a) Inspect the system circuit with connector disconnected. Disconnect the connector from the Diff. lock ECU and in-
spect the connector on the wire harness side, as shown
in the chart.
Trouble Part/
Terminals (Symbols)ConditionSpecified V alue
Rear diff. lock actuator/
1 (M2) − 3 (M1)−Less than 100 Ω
Front diff. lock actuator/
5 (M4) − 7 (M1)−Less than 100 Ω
Body ground/
13 (GND) − Body ground−Continuity
Vehicle speed sensor/
4(SPD) − Body groundVehicle moving slowly1 pulse each 40 cm (15.75 in.)
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FI1654
Fulcrum Length
30 cm
SST
−
SFI SFI SYSTEM
SF−3
631
Author: Date:
1996 LAND CRUISER (RM451U)
8. FUEL SYSTEM
(a) When disconnecting the high fuel pressure line, a large
amount of gasoline will spill out, so observe the following
procedures:
(1) Disconnect the fuel pump connector.
(2) Start the engine. After the engine has stopped onits own, turn off the ignition switch.
(3) Put a container under the connection.
(4) Slowly loosen the connection.
(5) Disconnect the connection.
(6) Plug the connection with 2 rubber plugs.
(7) Reconnect the fuel pump connector.
(b) When connecting the union bolt on the high pressure pipe
union, observe the following procedures:
(1) Always use a new gasket.
(2) Tighten the union bolt by hand.
(3) Tighten the union bolt to the specified torque.
Torque: 29 N·m (300 kgf·cm, 21 ft·lbf)
(c) When connecting the flare nut on the high pressure pipe union, observe the following procedures:
(1) Apply a light coat of engine oil to the flare and tight-
en the flare nut by hand.
(2) Using SST, tighten the flare nut to the specified torque.
SST 09631−22020
NOTICE:
Do not rotate the fuel pipe, when tightening the flare nut.
Torque: 30 N·m (310 kgf·cm, 22 ft·lbf)
HINT:
Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).
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−
SFI THROTTLE BODY
SF−43
671
Author: Date:
1996 LAND CRUISER (RM451U)
If not as specified, adjust using the following procedure:
(1) Stop the engine.
(2) Loosen the lock nut of the stopper bolt.
(3) Adjust the dashpot setting speed by turning thestopper bolt.
(4) Start the engine and check the dashpot setting speed.
(5) Retighten the lock nut.
(e) Maintain the engine at 3,500 rpm.
(f) Release the throttle valve, and check that the engine re- turns to idle in a few seconds.
4. CHECK THROTTLE OPENER
(a) Disconnect the vacuum hose from the throttle opener, and plug the hose end.
(b) Check the throttle opener setting speed. Throttle opener setting speed: 700 − 1,000 rpm
If the throttle opener setting is not as specified, replace the
throttle body.
(c) Stop the engine.
(d) Reconnect the vacuum hose to the throttle opener.
(e) Start the engine, and check that the idle speed returns to the correct speed.
Idle speed: 650 ± 50 rpm (N position)
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SF1EZ−01
−
SFI IDLE AIR CONTROL (IAC) VALVE
SF−49
677
Author: Date:
1996 LAND CRUISER (RM451U)
IDLE AIR CONTROL (IAC) VALVE
ON−VEHICLE INSPECTION
1. INSPECT IAC VALVE FOR OPERATING SOUND
Check that there is a clicking sound immediately after stopping
the engine.
If the operation is not as specified, check the IAC valve, wiring
and ECM.
2. INSPECT IAC VALVE RESISTANCE
(a) Disconnect the IAC valve connector.
(b) Using an ohmmeter, measure the resistance between the
terminals (B1 −S1 and S3, B2−S2 and S4).
Resistance:
At Cold: −10 − 50°C (−50 − 122°F): 15 − 25 Ω
At Hot: 50 −100°C (122 − 212° F): 20 − 30 Ω
If resistance is not as specified, replace the IAC valve.
(c) Reconnect the IAC valve connector.
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SF0Q2−08
−
SFI FUEL CUT RPM
SF−67
695
Author: Date:
1996 LAND CRUISER (RM451U)
FUEL CUT RPM
INSPECTION
1. WARM UP ENGINE
Allow the engine to warm up to normal operating temperature.
2. CONNECT TOYOTA HAND −HELD TESTER OR OBD II
SCAN TOOL
(a) Remove the fuse cover on the instrument panel.
(b) Connect the TOYOTA hand−held tester or OBD II scan tool to the DLC3.
(c) Please refer to the TOYOTA hand−held tester or OBD II
scan tool operator’s manual for further details.
3. INSPECT FUEL CUTOFF PRM
(a) Increase the engine speed to at least 3,500 rpm.
(b) Use a sound scope to check for injector operating noise.
(c) Check that when the throttle lever is released, injector op-
eration noise stops momentarily and then resumes.
HINT:
Measure with the A/C OFF. Fuel return rpm: 1,200 rpm
4. DISCONNECT TOYOTA HAND −HELD TESTER OR
OBD II SCAN TOOL
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