ENGINE
539
FUEL PUMP SHUT OFF SYSTEM
The fuel pump shut off system stops supplying fuel to the
engine to minimize the risk of fuel leakage when the engine
stalls or an airbag inflates upon collision. To restart the engine
after the fuel pump shut off system activates, turn the ignition
switch to “ACC” or “LOCK” once and start it.
CAUTION
Inspect the ground under the vehicle before restarting
the engine. If you find that liquid has leaked onto the
ground, it is the fuel system that has been damaged and
it is in need of repair. In this case, do not restart the
engine.
FACTS ABOUT ENGINE OIL
CONSUMPTION
Functions of engine oil
Engine oil has the primary function of lubricating and cooling
the inside of the engine, and plays a major role in maintaining
the engine in proper working order.
Engine oil consumption
It is normal that an engine should consume some engine
oil during normal engine operation. The causes of oil
consumption in a normal engine are as follows.
Oil is used to lubricate pistons, piston rings and cylinders.
A thin film of oil is left on the cylinder wall when a piston
moves downwards in the cylinder. High negative pressure
generated when the vehicle is decelerating sucks some of
this oil into the combustion chamber. This oil as well as
some part of the oil film left on the cylinder wall is burned by
the high temperature combustion gases during the
combustion process.
Oil is also used to lubricate the stems of the intake valves.
Some of this oil is sucked into the combustion chamber
together with the intake air and is burned along with the fuel.
High temperature exhaust gases also burn the oil used to
lubricate the exhaust valve stems.
Содержание 2004 GX470
Страница 8: ...HOW TO USE THIS MANUAL viii...
Страница 9: ...PICTORIAL INDEX ix INSTRUMENT PANEL vehicles without navigation system...
Страница 11: ...PICTORIAL INDEX xi INSTRUMENT PANEL vehicles with navigation system...
Страница 13: ...PICTORIAL INDEX xiii INSTRUMENT CLUSTER...
Страница 17: ...PICTORIAL INDEX xvii...
Страница 46: ...KEYS AND DOORS 29...
Страница 58: ...SWITCHES 41 NOTICE Do not operate the rear window wiper if the rear window is dry It may scratch the glass...
Страница 68: ...SWITCHES 51...
Страница 94: ...GAUGES METERS AND SERVICE REMINDER INDICATORS 77...
Страница 118: ...INTERIOR EQUIPMENT 101...
Страница 131: ...EXTERIOR EQUIPMENT 114...
Страница 199: ...OCCUPANT RESTRAINT SYSTEMS 182 NOTICE Do not disconnect the battery cables before contacting your Lexus dealer...
Страница 223: ...OCCUPANT RESTRAINT SYSTEMS 206 16PY108 Type A 16PY109 Type B...
Страница 239: ...STEERING WHEEL AND MIRRORS 222...
Страница 244: ...AIR CONDITIONING 227 21PY024 Air flow selection...
Страница 333: ...AUDIO 316 22PY056...
Страница 358: ...AUDIO 341 2209 Vietnamese 2215 Volap k 2315 Wolof 2408 Xhosa 2515 Yoruba 2621 Zulu...
Страница 379: ...AUDIO 362 Special shaped discs Low quality discs Labeled discs...
Страница 382: ...AUDIO 365...
Страница 445: ...STARTING AND DRIVING 428...
Страница 529: ...IN CASE OF AN EMERGENCY 512...
Страница 537: ...MAINTENANCE 520...
Страница 541: ...INTRODUCTION 524...
Страница 578: ...CHASSIS 561 TIRE INFORMATION Tire symbols 63PY018 The illustration indicates typical tire symbols...
Страница 592: ...CHASSIS 575 NOTICE If the wrong combination of tire and chain is used the chains could damage the vehicle body...
Страница 596: ...CHASSIS 579...
Страница 599: ...ELECTRICAL COMPONENTS 582 Driver s side instrument panel...
Страница 610: ...ELECTRICAL COMPONENTS 593 NOTICE Do not refill the battery with water...
Страница 621: ...ELECTRICAL COMPONENTS 604...
Страница 635: ...BODY 618...