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Lexus GS400 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Lexus REPAIR SHOPS DON'T WANT YOU TO KNOW
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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about Lexus GS400 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 GS400 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR Lexus GS400 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 GS400 cars and light trucks from 1990+
Lexus -> Electric Cooling Fans -> Precautions -> Air Bag System Disarming & Arming -> Battery Ground Cable -> Coded Theft Protection Disarming
Vehicle: 1998 Lexus GS400 4.0 V8 GAS
When servicing "LX 470" refer to" Land Cruiser" in for service procedures.
Air Bag System Disarming & Arming
Refer to and for air bag system disarming and arming procedures.
Battery Ground Cable
Prior to service, disconnect battery ground cable and isolate as requ...
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BRAKE SERVICE PROCEDURES FOR Lexus GS400 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Lexus GS400 cars and light trucks from 1990+.
Anti-lock Brakes -> Diagnosis & Testing -> 1999-2000 ABS -> 1999-2000 TRAC -> 2001-02 ABS, BA, TRAC & VSC -> ABS -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Component Testing -> Diagnostic Tests -> Diagnostic Trouble Code Interpretation -> GS300, GS400 & GS430 -> IS300 -> LS400 -> LS430 -> RX300 -> SC300 & SC400 -> SC430 -> Terminal Identification -> TRAC -> Vehicle Skid Control (VSC) & Brake Assist (BA) System -> Vehicle Skid Control (VSC) & Brake Assist System -> Wiring Diagrams
Vehicle: 2000 Lexus GS400 4.0 V8 GAS
Accessing Diagnostic Trouble Codes
- Turn ignition switch to On position.
- Disconnect short pin from DLC1, Fig. , then connect diagnosis check wire tool No. 09843-18020, or equivalent, to terminals Tc and E1 of Del or DLC2.
- Read diagnostic trouble code from ABS warning light on combination meter. If no diagnostic trouble code appears, inspect diagnostic circuit or ABS warning circuit.
- After completing check, disconnect terminals Te and E1 and turn off display. If more than one diagnostic trouble code is stored, lowest number will appear first.
Diagnostic Trouble Code Interpretation
R...
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FUEL FILTER REPLACEMENT PROCEDURES FOR Lexus GS400 AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported Lexus GS400 cars and light trucks sold in the U.S. for 1980+.
Lexus -> Fuel Filter Scheduled Maintenance -> -> Normal Service -> Severe Service
Vehicle: 2000 Lexus GS400 4.0 V8 GAS
Normal Service
Manufacturer does not specify service interval
...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR Lexus GS400 AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported Lexus GS400 cars and light trucks from 1990+.
CV AXLE SHAFT, Replace -> Rear
Vehicle: 1999 Lexus GS400 4.0 V8 GAS
Rear
- 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 ma...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR Lexus GS400 AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported Lexus GS400 cars and light trucks from 1990+.
Starter, Replace
Vehicle: 1998 Lexus GS400 4.0 V8 GAS
- Disconnect battery ground cable.
- Drain engine coolant into suitable container.
- Remove V-bank cover, and intake air connector pipe.
- Disconnect throttle body accelerator cable.
- Remove mounting bolts and disconnect throttle body from intake manifolds.
- Remove upper and lower i...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR Lexus GS400 AUTOMOBILES
Cabin air filter locations and replacement procedures with corresponding images for most domestic and imported Lexus GS400 cars and light trucks sold in the U.S. as equipped to the current model year.
Cabin Air Filter Service -> Lexus -> 1998-2001 GS300, GS400 & GS430
Vehicle: 2000 Lexus GS400 4.0 V8 GAS
The cabin air filter should be replaced every 30,000 miles or 24 months. If the vehicle is operated primarily in urban areas with high concentrations of soot and diesel powered vehicles, replace the filter every 15,000 miles. The filter should be replaced more often if air flow is less than normal.
- Disconnect and isolate the battery ground cable. After disconnecting the battery ground cable wait at least 90 seconds to allow the air bag system backup power discharge.
- Remove glove compartment to instrument panel attaching bolts....
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MAINTENANCE LAMP RESET PROCEDURES FOR Lexus GS400 AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported Lexus GS400 cars and light trucks sold in the U.S. from 1990+.
Lexus -> Low Coolant Lamp ->
Vehicle: 1999 Lexus GS400 4.0 V8 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 GS400 AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported Lexus GS400 cars and light trucks from 1990+
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1998 Lexus GS400 4.0 V8 GAS
Lower
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp at radiator outlet.
- Remove hose from radiator.
- Reposition hose clamp at thermostat housing.
- Remove hose from thermostat housing.
- Remove hose from vehicle.
- Reverse procedure to ...
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SERPENTINE BELT SERVICE PROCEDURES FOR Lexus GS400 AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported Lexus GS400 cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 1999 Lexus GS400 4.0 V8 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 GS400 AUTOMOBILES
Component location diagrams for most Lexus GS400 cars and light trucks sold in the U.S. from 1990+.
 Passenger Compartment Connector Locations, L2 Through W6 Diagram for 1998 Lexus GS400 4.0 V8 GASComponents on diagram: |
 Engine Compartment Relay Locations Diagram for 1999 Lexus GS400 4.0 V8 GASComponents on diagram: |
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WIRING DIAGRAMS FOR Lexus GS400 AUTOMOBILES
OEM drawn wiring diagrams for most Lexus GS400 cars and light trucks sold in the U.S.
 1998 Lexus GS400 4.0 V8 GAS Wiring DiagramComponents on diagram: |
 1998 Lexus GS400 4.0 V8 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR Lexus GS400 AUTOMOBILES
OEM TSB listings for most Lexus GS400 cars and light trucks sold in the U.S. from 1985+.
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Document: MIDTRONICS BATTERY TESTER SOFTWARE UPDATE Vehicle: 2000 Lexus GS400 4.0 V8 GAS Auto Systems: |
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Document: SULFUR ODOR FROM EXHAUST Vehicle: 1998 Lexus GS400 4.0 V8 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR Lexus GS400 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most Lexus GS400 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 GS400 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 GS400 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 GS400 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
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