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

Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!

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    Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 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!
    DIY REPAIR SAMPLES > CONTINUE EXPLORING >
    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 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 Lexus GS300 AUTOMOBILES

    Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported Lexus GS300 cars and light trucks from 1990+

    Imported Cars & Light Trucks & Vans -> 2003-04 -> Oil Charge -> 3.2 CL -> 3.2 TL -> 3.5 RL -> 4Runner -> Accent -> Accord -> Acura -> Audi -> Avalon -> B-Series Pickup & Tribute -> BMW -> Cabrio, Golf, GTI & Jetta -> Camry & Camry Solara -> Celica & Echo -> Civic -> Corolla -> Diamante -> Eclipse -> Elantra & Tiburon -> Endeavor & Montero -> ES300 & ES330 -> Forester & Legacy -> Galant -> GS300 & GS430 -> GX470 & LX470 -> Honda -> Hyundai -> Impreza -> Infiniti -> IS300, LS430, RX300, RX330 & SC430 -> Isuzu -> Jaguar -> Kia -> Lancer -> Land Cruiser -> Land Rover -> Lexus -> Mazda -> Mazda3 & Protege -> Mazda6 -> MDX -> Mercedes-Benz -> Miata -> Mitsubishi -> Montero Sport & Outlander -> MPV -> MR2, Highlander & Sequoia -> New Beetle -> Nippondenso Compressor -> Nissan -> Odyssey -> Outback -> Passat -> Porsche -> RAV4 -> RSX -> S2000 -> Saab -> Sanden Compressor -> Santa Fe & Sonata -> Sienna & Tacoma -> Subaru -> Suzuki -> Toyota -> Tundra -> Volkswagen -> Volvo -> XG350
    Vehicle: 2003 Lexus GS300 3.0 L6 GAS

    Remove defective components. Add the proper amount of oil to each replacement component. Most recovery/recycling equipment will measure the amount of oil being removed. This is the amount of oil to be added back to the system, follow manufactures instructions provided with the recovery/recycling station.

    Acura

    MDX

    When replacing compressor, drain old and new units. Add oil to new compressor equal to 7.0 oz.

    When replacing other system components add the following amount of new oil: front evaporator, 1.3 oz.; rear evaporator, 1.0 oz.; condenser, 1.2 oz.; line ...

    CLICK HERE TO GET FULL ACCESS TO Lexus GS300 A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR Lexus GS300 AUTOMOBILES

    Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Lexus GS300 cars and light trucks from 1990+.

    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
    • ...

    CLICK HERE TO GET FULL ACCESS TO Lexus GS300 BRAKE SERVICE PROCEDURES

    FUEL FILTER REPLACEMENT PROCEDURES FOR Lexus GS300 AUTOMOBILES

    Fuel filter replacement procedures with corresponding images for most domestic and imported Lexus GS300 cars and light trucks sold in the U.S. for 1980+.

    Lexus -> Fuel Filter Replacement -> 1993-97 LS400, SC300, SC400 & GS300 -> Fuel System Pressure Relief -> Removal & Installation
    Vehicle: 1994 Lexus GS300 3.0 L6 GAS

    Fuel System Pressure Relief

    • Obtain the vehicle owners radio theft protection code prior to disconnecting the battery ground cable, if equipped.
    • From the luggage compartment, remove the luggage compartment floor mat and trim cover.
    • Disconnect the fuel pump electrical connector, Figs. through .
    • Start the engine and allow to idle until it stalls.
    • Place the ignition switch in the Lock position.
    • Disconnect the battery ground cable.
    • Connect the fuel pump electrical connector.
    • Install the luggage compartment trim cover and floor mat.

    Removal & Installation

    Do not smoke or al...

    CLICK HERE TO GET FULL ACCESS TO Lexus GS300 FUEL FILTER REPLACEMENT PROCEDURES

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

    Includes CV axle, universal joint, and driveline replacement, for domestic and imported Lexus GS300 cars and light trucks from 1990+.

    CV AXLE SHAFT, Replace
    Vehicle: 1996 Lexus GS300 3.0 L6 GAS

    • Raise and support vehicle, then remove rear wheel and tire assembly.
    • Remove exhaust pipe.
    • Remove cotter pin, locknut cap and center locknut.
    • Place matchmarks on driveshaft and side gear shaft, Fig. . Do not use a punch to mark matchmarks.
    • Remove six hexagon bolts and two washers while depressing brake pedal, Fig. .
    • Hold inboard joint side...

    CLICK HERE TO GET FULL ACCESS TO Lexus GS300 DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR Lexus GS300 AUTOMOBILES

    Description, component locations, reset procedures, relearn procedures, diagnosis and testing, wiring diagrams, component replacement, and identification of vehicles equipped and not equipped with tire pressure monitoring system for most domestic and imported Lexus GS300 cars and light trucks sold in the U.S. from mid 1990's+.

    Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Diagnostic Trouble Code Identification -> Reset Switch Test -> Using Scan Tool -> Using TPMS Warning Lamp
    Vehicle: 2006 Lexus GS300 3.0 V6 GAS

    Accessing Diagnostic Trouble Codes

    Using TPMS Warning Lamp
    • Place the ignition switch in the Off position.
    • Using Toyota SST or other suitable jumper, connect terminals TC and CG of DLC3. The DLC3 is located under the left side of the instrument panel, Fig. .
    • Place the ignition switch in the On position.
    • Read and note DTCs indicated by flashes of the TPMS warning lamp, Fig. .
    • If the TPMS warning lamp blinks in .25 second intervals, a normal condition is indicated, Fig. .
    • If the TPMS warning lamp blinks in .5 second intervals followed by a 1.5 second pause, then additional .5 second i...

    CLICK HERE TO GET FULL ACCESS TO Lexus GS300 TIRE PRESSURE MONITORING SYSTEM PROCEDURES

    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR Lexus GS300 AUTOMOBILES

    Includes starter and alternator replacement procedures for domestic and imported Lexus GS300 cars and light trucks from 1990+.

    Alternator, Replace
    Vehicle: 2003 Lexus GS300 3.0 L6 GAS

    • Disconnect battery ground cable.
    • Remove engine under cover.
    • Remove drive belt.
    • Disconnect alternator electrical connector.
    • Remove rubber cap and nut, then disconnect alternator wire.
    • Remove...

    CLICK HERE TO GET FULL ACCESS TO Lexus GS300 STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR Lexus GS300 AUTOMOBILES

    Cabin air filter locations and replacement procedures with corresponding images for most domestic and imported Lexus GS300 cars and light trucks sold in the U.S. as equipped to the current model year.

    Cabin Air Filter Service -> Lexus -> 2002-05 GS300 & GS430
    Vehicle: 2003 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...

    CLICK HERE TO GET FULL ACCESS TO Lexus GS300 CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR Lexus GS300 AUTOMOBILES

    Maintenance lamp reset procedures with corresponding images for most domestic and imported Lexus GS300 cars and light trucks sold in the U.S. from 1990+.

    Lexus -> Air Bag Warning Lamp -> 1993-2000 GS300
    Vehicle: 1994 Lexus GS300 3.0 L6 GAS

    The air bag system warning lamp warns of air bag system faults. The lamp will be lit when the ignition switch is placed in the Accessory or On positions, but should go out when the self-diagnostic system determines that no faults are present. If the lamp remains lit or flashes, a system fault is indicated. Air bag system diagnosis and repair procedures must be completed before the warning lamp can be reset.

    Reset warning lamp as follows:

    • Connect service wires to check connec...

    CLICK HERE TO GET FULL ACCESS TO Lexus GS300 MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR Lexus GS300 AUTOMOBILES

    Includes radiator, cooling and heater hose replacement procedures for domestic and imported Lexus GS300 cars and light trucks from 1990+

    Radiator, Replace
    Vehicle: 2004 Lexus GS300 3.0 L6 GAS

    • Remove engine under cover.
    • Drain engine coolant into suitable container.
    • Remove inlet and air cleaner.
    • Disconnect upper and lower radiator hoses from radiator.
    • Disconnect Engine Control Module (ECM) box outlet...

    CLICK HERE TO GET FULL ACCESS TO Lexus GS300 RADIATOR & HOSE REPLACEMENT PROCEDURES

    SERPENTINE BELT SERVICE PROCEDURES FOR Lexus GS300 AUTOMOBILES

    Serpentine belt replacement procedures with corresponding images for most domestic and imported Lexus GS300 cars and light trucks sold in the U.S. from 1990+.

    Serpentine Drive Belt, Replace
    Vehicle: 1998 Lexus GS300 3.0 L6 GAS

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

    CLICK HERE TO GET FULL ACCESS TO Lexus GS300 SERPENTINE BELT SERVICE PROCEDURES

    COMPONENT LOCATION DIAGRAMS FOR Lexus GS300 AUTOMOBILES

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

    Relay/Junction Block No.2 Diagram for 1993 Lexus GS300  3.0 L6 GASRelay/Junction Block No.2 Diagram for 1993 Lexus GS300 3.0 L6 GAS

    Components on diagram:
  • Radiator Fan Relay No. 2
  • Radiator Fan Main Relay
  • Horn Relay
  • ABS Solenoid Relay
  • ABS Motor Relay
  • Body Components Diagram for 2003 Lexus GS300  3.0 L6 GASBody Components Diagram for 2003 Lexus GS300 3.0 L6 GAS

    Components on diagram:
  • Fuel Pump
  • Garage Door Opener
  • Front Speaker
  • Fuel Sender
  • Door Courtesy Light
  • CLICK HERE TO GET FULL ACCESS TO Lexus GS300 PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR Lexus GS300 AUTOMOBILES

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

    1993 Lexus GS300  3.0 L6 GAS Wiring Diagram1993 Lexus GS300 3.0 L6 GAS Wiring Diagram

    Components on diagram:
  • Battery
  • Ignition Switch
  • Ignition Coil
  • Generator
  • Distributor
  • 2005 Lexus GS300  3.0 L6 GAS Wiring Diagram2005 Lexus GS300 3.0 L6 GAS Wiring Diagram

    Components on diagram:
  • Water Temperature Switch
  • Battery
  • Ignition Switch
  • A/C Condenser Fan Motor
  • Radiator Fan Motor
  • CLICK HERE TO GET FULL ACCESS TO Lexus GS300 WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR Lexus GS300 AUTOMOBILES

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

    Document: REPAIR MANUAL CORRECTIONS INDEX
    Vehicle: 1996 Lexus GS300 3.0 L6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Document: REPLACEMENT CERTIFICATION LABELS - OBSOLETE
    Vehicle: 1994 Lexus GS300 3.0 L6 GAS

    Auto Systems:
  • Identification, Models, Labels, Etc.
  • CLICK HERE TO GET FULL ACCESS TO Lexus GS300 TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR Lexus GS300 AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 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 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 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 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 Lexus GS300 SPECIFICATIONS DATA!

    Shop online for auto body parts, engines, wheels, lights...

    Click here to view more details2005 Lexus GS300 Tail Light, Driver Side.

    Source: Auto Body Parts Store

    $57.67

    Click here to view more details1998 Lexus GS300 Headlight, Driver Side, Bulbs included; Composite, combination, and halogen type; DOT and SAE approved; A high quality, direct fit OE replacement headlight assembly; With 2 years limited TrustBuilt warranty..

    Source: Auto Body Parts Store

    $245.17

    Click here to view more details2003 Lexus GS300 Wheel Center Cap, WHEEL CENTER CAP, 5 SPOKES, REAR, ALL PAINTED SILVER , , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $23.50

    Click here to view more details2002 Lexus GS300 L6, 3 L, 2997 CC Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    Ad Hoc

    Click here to view more details1993 Lexus GS300 Used Air Flow Meter/Sensor, 3.0, AUTO, RWD, Very Good.

    Source: Used Auto Parts Store

    $141.00

    Click here to view more details1995 Lexus GS300 Used Bumper Bar, Rear, 4DR, Black w/foam, Very Good.

    Source: Used Auto Parts Store

    $144.00
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