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

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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!
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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 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+

Lexus -> Electric Cooling Fans -> COMPONENT DIAGNOSIS & TESTING -> Cooling Fan Relay -> Fan Main Relay -> FAN MOTOR -> GS 300 -> HIGH PRESSURE SWITCH -> LS 400 -> NO. 1 & 2 COOLING FAN RELAY -> NO. 1 & 2 FAN MOTORS -> NO. 3 COOLING FAN & ENGINE MAIN RELAY -> On-Vehicle Inspection -> SC 300 -> TEMPERATURE SWITCH
Vehicle: 1994 Lexus GS300 3.0 L6 GAS

GS 300

When performing the following tests, refer to Fig. .

On-Vehicle Inspection
  • Standard amperage is 6.0-7.4A. With coolant temperature below 88°C (190°F), turn ignition On and ensure fan stops. If not, inspect the following:
    • Fan relay.
    • Temperature switch.
    • Bad connection or open between fan relay and temperature switch.
  • Disconnect temperature switch connector, ensure fan rotates. If not, inspect the following:
    • Fan main relay.
    • Cooling fan relay.
    • Ignition relay and fuse...

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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+.

Hydraulic Brake Systems -> Component Service -> Assemble -> Disassemble -> ES300 -> Inspection -> Master Cylinder -> Proportioning Valve
Vehicle: 2001 Lexus GS300 3.0 L6 GAS

Master Cylinder

Disassemble
  • On IS300, ES300 & RX300 remove brake fluid reservoir.
  • On all models, remove master cylinder boot, Figs. through .
  • Remove set screw, then the reservoir tank. Remove cap and strainer from reservoir.
  • Remove two grommets, then place cylinder in suitable vise.
  • On models less TRAC and VSC, push piston in and remove stopper bolt.
  • On models with TRAC, push pistons in and remove No. 1, then No. 2 stopper bolts.
  • On models with VSC, push in piston with a screwdriver, then remove straight pin by turning over cylinder body. Tape screwdriver tip before using it.
  • On all m...

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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 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 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 -> Front
Vehicle: 2005 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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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+.

Component Replacement -> Installation -> Removal -> Tire Pressure Sensor & Transmitter -> TPMS ECU -> TPMS Receiver
Vehicle: 2006 Lexus GS300 3.0 V6 GAS

Tire Pressure Sensor & Transmitter

If installing a replacement tire pressure sensor and transmitter, note the identification number for use during registration. Refer to the Registration under the "Relearn Procedures."

Removal
  • Loosen the wheel lug nuts.
  • Raise and support vehicle with jack stands.
  • Remove the wheel and tire assembly.
  • Remove the tire valve stem cap, then the valve stem core and allow the tire to deflate, Fig. .
  • Remove the nut retaining the tire pressure sensor and transmitter to the wheel assembly, then drop the transmitter inside the tire.
  • Using a suitable tire change...

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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: 1993 Lexus GS300 3.0 L6 GAS

  • Remove engine under cover.
  • Loosen belt tension by turning drive belt tensioner clockwise, and remove drive belt.
  • Disconnect alternator connector.
  • Remove rubber cap and nut, and disconnect alternator wire.
  • Disconnect engine wire clamp from wire clip on alternator.
  • Remove bolt and pipe clamp, and...

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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: 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 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 -> Low Coolant Lamp ->
Vehicle: 2002 Lexus GS300 3.0 L6 GAS

This lamp will be illuminated when the coolant level in the radiator drops below a pre-determined point. To reset the lamp, bring the c...

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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+

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 1995 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 to in...

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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: 1999 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 Lexus GS300 AUTOMOBILES

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

Ground Electrical Wiring Routing and Splices Diagram for 2005 Lexus GS300  3.0 L6 GASGround Electrical Wiring Routing and Splices Diagram for 2005 Lexus GS300 3.0 L6 GAS

Components on diagram:
  • Seat Wire
  • Floor No. 1 Wire
  • Floor No. 2 Wire
  • Code B6
  • Code BC1
  • Instrument Panel Diagram for 2006 Lexus GS300  3.0 V6 GASInstrument Panel Diagram for 2006 Lexus GS300 3.0 V6 GAS

    Components on diagram:
  • Stop Light Switch
  • Junction Block
  • Combination Meter
  • Shift Lock Control ECU
  • 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.

    2002 Lexus GS300  3.0 L6 GAS Wiring Diagram2002 Lexus GS300 3.0 L6 GAS Wiring Diagram

    Components on diagram:
  • Battery
  • Ignition Switch
  • Left Remote Control Mirror
  • Right Remote Control Mirror
  • Seat Heater Switch
  • 2004 Lexus GS300  3.0 L6 GAS Wiring Diagram2004 Lexus GS300 3.0 L6 GAS Wiring Diagram

    Components on diagram:
  • Battery
  • Ignition Switch
  • Left Front Door Speaker
  • Right Rear Door Speaker
  • Right Front Door Speaker
  • 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: ENGINE BANK 1 AND BANK 2 A/F AND O2 IDENTIFICATION - REVISED
    Vehicle: 2005 Lexus GS300 3.0 L6 GAS

    Auto Systems:
  • Electronic Devices, Computers, PROMS, Sensors
  • Document: CHILD RESTRAINT SEAT TOP STRAP BRACKET INSTALLATION
    Vehicle: 1993 Lexus GS300 3.0 L6 GAS

    Auto Systems:
  • Seats, Belts, Interior Trim, Carpets, Air Bags
  • 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 Shock Absorber and Strut Assembly, Rear, Gas charged; Twin tube construction; Built with quality that matches or exceeds OE design and calibrated to compensate for worn suspensions, this standard replacement shock absorber restores handling and control while greatly improving ride comfort; With KYB's limited lifetime warranty..

    Source: Auto Body Parts Store

    $99.83

    Click here to view more details about 2006 Lexus GS300 Wiper Blade, Front, Passenger Side, Rear2006 Lexus GS300 Wiper Blade, Front, Passenger Side, Rear, 19 in. length, Includes universal plastic adapters and easy to follow installation instructions; This new generation flat blade provides improved wiping capabilities in rain and freezing weather, long lasting durability, an easy to service design using a rubber insert that requires no special tools or high cost items to replace, and a clean appearance from inside the vehicle with the wiper profile neatly conforming to the base of the windshield; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $16.32

    Click here to view more details about 2003 Lexus GS300 16" x 7.5" Alloy Wheel2003 Lexus GS300 16" x 7.5" Alloy Wheel, Alloy Wheel; 16 X 7.5; 50MM Offset; 6 Spokes; 5 Lug; 4.5 Inch BP; Original Equipment Chrome, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $245.50

    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

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    Click here to view more details2004 Lexus GS300 Used Rear Lower Control Arm, Driver Side, 3.0, AUTO, RWD L, Trailing Arms, Very Good.

    Source: Used Auto Parts Store

    $109.00

    Click here to view more details2001 Lexus GS300 Used Upper Control Arm, Passenger Side, 520-458 NEW R, AFTERMARKET.

    Source: Used Auto Parts Store

    $89.00
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