2004 Lexus GS300 REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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2004 Lexus GS300 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Lexus REPAIR SHOPS DON'T WANT YOU TO KNOW

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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2004 Lexus GS300 car and truck repair procedures including Lexus engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up & drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix your Lexus GS300 automobile. Try the Automotix DIY solution today!
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Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for Lexus mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 2004 Lexus GS300 vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

A/C & HEATER SERVICE PROCEDURES FOR 2004 Lexus GS300 AUTOMOBILES

Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 2004 Lexus GS300 3.0 L6 GAS

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BRAKE SERVICE PROCEDURES FOR 2004 Lexus GS300 AUTOMOBILES

Lexus -> Power Brake Units -> Diagnosis & Testing -> Air Tightness Inspection -> Brake Booster Operational Test -> Brake Pedal Reserve Distance Inspection -> Except LX470 -> Operating inspection
Vehicle: 2004 Lexus GS300 3.0 L6 GAS

Brake Pedal Reserve Distance Inspection

Except LX470
  • Release parking brake.
  • With engine running, depress brake pedal and measure pedal reserve distance, Fig. .
  • On LS430 models, reserve height should be more than 2.36 inches at 110.2 ft. lbs. of pressure.
  • On IS300 models, reserve height should be more than 3.90 inches at 110.2 ft. lbs. of pressure.
  • On RX300 models, reserve height should be more than 4.80 inches at 110.2 ft. lbs. of pressure.
  • On SC430 models, reserve height should be more than 3.94 inches at 44.1 ft. lbs. of pressure.

Brake Booster Operational Test

Operating inspection
  • ...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 2004 Lexus GS300 AUTOMOBILES

Lexus -> Fuel Filter Scheduled Maintenance -> -> Normal Service -> Severe Service
Vehicle: 2004 Lexus GS300 3.0 L6 GAS

Normal Service

Manufacturer does not specify service interval

...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2004 Lexus GS300 AUTOMOBILES

CV AXLE SHAFT, Replace -> Front
Vehicle: 2004 Lexus GS300 3.0 L6 GAS

Front

  • Raise and support vehicle and support it with safety stands in proper locations.
  • Remove wheel nuts and rear wheels.
  • Remove suspension member brace bolts.
  • Remove split pin and driveshaft castle nut and washer from front hub.
  • Apply brake and remove axle hub nut.
  • Place reference mark on adjusting cam and lower suspension arm
  • Remove bolt and disconnect lower suspension arm from axle hub.
  • Place reference ...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2004 Lexus GS300 AUTOMOBILES

Starter, Replace
Vehicle: 2004 Lexus GS300 3.0 L6 GAS

  • Disconnect battery ground cable.
  • Remove rubber cap and nut, then disconnect starter wire and connector.
  • Remove engine wire clam...

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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2004 Lexus GS300 AUTOMOBILES

Cabin Air Filter Service -> Lexus -> 2002-05 GS300 & GS430
Vehicle: 2004 Lexus GS300 3.0 L6 GAS

Under normal operating conditions the cabin air filter should be replaced 7,500 miles. In dusty areas change the cabin air filter more often.

  • Open the glove compartment.
  • Remove the cover located at the rear of the glove compartment by lifting upward and pulling outward, Fig. .
  • Through the glove compartment rear co...

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MAINTENANCE LAMP RESET PROCEDURES FOR 2004 Lexus GS300 AUTOMOBILES

Lexus -> Malfunction Indicator Lamp (MIL) ->
Vehicle: 2004 Lexus GS300 3.0 L6 GAS

On some models equipped with OBD II, the MIL will also illuminate if the fuel tank filler cap is not properly tightened. Tighten fuel tank filler cap until it clicks.

On some models equipped with OBD II, if a misfire condition which may cause damage to the catalytic converter is present, the Check engine lamp will flash once per second until vehicle operation is outside the speed and load range causing the misfire. The lamp will stop flashing and remain steady

On all models, the MIL should light when the ignition switch is placed in the On position without starting the engine. When the engine is...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2004 Lexus GS300 AUTOMOBILES

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2004 Lexus GS300 3.0 L6 GAS

Inlet

  • Disconnect battery ground cable.
  • Drain cooling system into a suitable container by loosening drain plug of radiator.
  • Reposition hose clamp at heater core.
  • Remove hose from heater core.
  • Reposition hose clamp at water outlet.
  • Remove hose from water outlet.
  • Remove hose from vehicle.
  • Reverse procedure ...

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SERPENTINE BELT SERVICE PROCEDURES FOR 2004 Lexus GS300 AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 2004 Lexus GS300 3.0 L6 GAS

  • Rotate or lift the belt tensioner arm, using a suitable tool to relieve tension from dr...

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COMPONENT LOCATION DIAGRAMS FOR 2004 Lexus GS300 AUTOMOBILES

Component location diagrams for most 2004 Lexus GS300 cars and light trucks sold in the U.S. from 1990+.

Engine Immobiliser System Components Diagram for 2004 Lexus GS300  3.0 L6 GASEngine Immobiliser System Components Diagram for 2004 Lexus GS300 3.0 L6 GAS

Components on diagram:
  • ECM
  • Transponder Key Amplifier
  • Transponder Key Coil
  • Driver Side Junction Block
  • IGN Fuse
  • Engine Compartment Components Diagram for 2004 Lexus GS300  3.0 L6 GASEngine Compartment Components Diagram for 2004 Lexus GS300 3.0 L6 GAS

    Components on diagram:
  • Fuel Pump
  • Vehicle Speed Sensor
  • Vapor Pressure Sensor
  • Throttle Position Sensor
  • Ignition Switch
  • CLICK HERE TO GET FULL ACCESS TO 2004 Lexus GS300 PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 2004 Lexus GS300 AUTOMOBILES

    OEM drawn wiring diagrams for most 2004 Lexus GS300 cars and light trucks sold in the U.S.

    2004 Lexus GS300  3.0 L6 GAS Wiring Diagram2004 Lexus GS300 3.0 L6 GAS Wiring Diagram

    Components on diagram:
  • Battery
  • Glove Box Lamp
  • Remote Control Mirror Switch
  • Ashtray Illumination
  • A/C Control Illumination
  • 2004 Lexus GS300  3.0 L6 GAS Wiring Diagram2004 Lexus GS300 3.0 L6 GAS Wiring Diagram

    Components on diagram:
  • Vehicle Speed Sensor
  • Battery
  • Ignition Switch
  • Engine Control Module
  • Electronically Controlled Transmission Solenoid
  • CLICK HERE TO GET FULL ACCESS TO 2004 Lexus GS300 WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 2004 Lexus GS300 AUTOMOBILES

    OEM TSB listings for most 2004 Lexus GS300 cars and light trucks sold in the U.S. from 1985+.

    Document: REPAIR MANUAL SUPPLEMENT: VEHICLE PULLING TO ONE SIDE - REVISED
    Vehicle: 2004 Lexus GS300 3.0 L6 GAS

    Symptoms:
  • Pull, Grab
  • Auto Systems:
  • Steering, Suspension
  • Document: UPPER/LOWER WINDSHIELD TICK NOISE
    Vehicle: 2004 Lexus GS300 3.0 L6 GAS

    Symptoms:
  • Noise
  • Auto Systems:
  • Glass, Doors, Hood, Decklid, Tailgate, Liftgate, Locks
  • CLICK HERE TO GET FULL ACCESS TO 2004 Lexus GS300 TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 2004 Lexus GS300 AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2004 Lexus GS300 cars and light trucks sold in the U.S. and Canada from 1970+.

    • Brake caliper mounting bolt torque
    • Brake drum runout, machining, & discard specs
    • Minimum brake lining thickness.
    • Brake rotor runout, parallelism, machining, discard, & finish specs

    A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 2004 Lexus GS300 cars and light trucks sold in the U.S. and Canada from 1980+.

    • Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap

    COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.

    PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules

    QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 2004 Lexus GS300 cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.

    • Automatic transmission/transaxles capacities, lubricant recommendations
    • Differential/final drive capacities, lube recommendations, grades, & viscosities
    • Final drive fill & drain plug torques
    • Number of lubrication fittings & plugs
    • Power steering, brake, & clutch fluid recommendations
    • Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
    • Number of lubrication fittings & plugs
    • Power steering, brake, & clutch fluid recommendations
    • Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
    • Severe service maintenance & interval recommendations
    • Tire sizes, wheel nut/bolt torque, pressures & rim sizes
    • Transfer case capacities, lube recommendations, grades, & viscosities

    TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 2004 Lexus GS300 cars and light trucks sold in the U.S. and Canada from 1980+

    • Airflow sensor electrical specifications
    • Tensioning specifications for systems with automatic tensioners
    • Barometric pressure sensor specs
    • Battery group number and cranking performance
    • Crankshaft & camshaft position sensor resistance
    • Engine compression pressures
    • Coolant temperature sensor specs
    • Computer advance.
    • Diesel fuel temperature sensor resistance.
    • Distributor advance specifications
    • Ignition pickup coil resistance
    • Exhaust gas recirculation temperature sensor resistance
    • Engine fastener torque values
    • Firing order diagrams
    • Fuel system pressures
    • Generator (alternator) specs
    • Intake air temperature sensor specs
    • Ignition coil specifications
    • Fuel injector resistance
    • Engine idle speeds
    • Knock sensor resistance
    • Manifold absolute pressure sensor specs
    • Mixture control solenoid resistance
    • Voltage regulator specs
    • Spark plug applications & gaps
    • Starter motor electrical specs.
    • Tensioning specifications for systems without automatic tensioners
    • Throttle body temperature sensor resistance
    • Ignition timing in degrees at rpm
    • Transmission oil temperature sensor resistance
    • Throttle position sensor specs
    • Vacuum sensor valve specs

    CLICK HERE TO GET FULL ACCESS TO 2004 Lexus GS300 SPECIFICATIONS DATA!

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