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2001 Lexus IS300 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Lexus REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service

A/C & HEATER SERVICE PROCEDURES FOR 2001 Lexus IS300 AUTOMOBILES
Import Compressor Service -> Application Chart
Vehicle: 2001 Lexus IS300 3.0 L6 GAS
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BRAKE SERVICE PROCEDURES FOR 2001 Lexus IS300 AUTOMOBILES
Power Brake Units -> Precautions -> Battery Ground Cable -> Coded Theft Protection Disarming
Vehicle: 2001 Lexus IS300 3.0 L6 GAS
Battery Ground Cable
Prior to service, disconnect battery ground cable and isolate as required.
Coded Theft Protection Disarming
- Obtain theft protection code number from ...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2001 Lexus IS300 AUTOMOBILES
Lexus -> Fuel Filter Replacement -> IS250, IS300 & IS350 -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 2001 Lexus IS300 3.0 L6 GAS
Fuel System Pressure Relief
- Remove the rear seat cushion.
- Remove the carpeting to access floor service hole cover.
- Disconnect the fuel pump electrical connector.
- Start the engine and let it idle until it stalls, then turn ignition OFF.
- Disconnect the battery ground cable.
Removal & Installation
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injur...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2001 Lexus IS300 AUTOMOBILES
DRIVESHAFT, Replace -> Rear
Vehicle: 2001 Lexus IS300 3.0 L6 GAS
Rear
- Raise vehicle off ground and support it with safety stands in proper locations.
- Remove engine undercovers.
- Remove rear floor board.
- Remove bolts and nuts securing front exhaust pipe assembly.
- Disconnect heated oxygen sensor.
- Remove five bolts and pipe support bracket, retainer and nut from exhaust manifold.
- Disconnect the exhaust pipe assembly from four rings.
- Remove exhaust pipe assembly.
- Remove two gaskets from exhaust pipe assembly.
- Make a reference mark across driveline and differential companion flange.
- Remove bolts, washer, and nuts from companion flange.
- Remove center suppor...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2001 Lexus IS300 AUTOMOBILES
Alternator, Replace
Vehicle: 2001 Lexus IS300 3.0 L6 GAS
- Disconnect battery ground cable.
- Remove engine under cover.
- On models with manual transmission, remove drive belt tensioner absorber.
- On all models, loosen belt tension by turning belt tensioner clockwise from bottom side, using tensioner tool No. SST 09216-00041 or equivalent, and remove drive belt.
- Disconnect alternator connector.
- Remove rubber cap and nut, and disconnect alternator wire.
- Disconnect engine wire clamp from wire clip on al...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2001 Lexus IS300 AUTOMOBILES
Cabin Air Filter Service -> Lexus -> 2001-05 IS300
Vehicle: 2001 Lexus IS300 3.0 L6 GAS
The cabin air filter should be replaced every 22,500 miles or 18 months. In dusty areas change the cabin air filter more often.
- Open the glove compartment.
- Remove the two pins securing the glove compartment to the instrument panel, then the glove compartment.
- Thr...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2001 Lexus IS300 AUTOMOBILES
Lexus -> Automatic Transmission Oil Temperature Warning Lamp ->
Vehicle: 2001 Lexus IS300 3.0 L6 GAS
This lamp will be illuminated when automatic transmission or transfer case fluid temperature exceeds 302°F. If the lamp lights, allow vehicle to operate at idle speed until fluid temperature falls below 248°F; t...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2001 Lexus IS300 AUTOMOBILES
Radiator, Replace
Vehicle: 2001 Lexus IS300 3.0 L6 GAS
- Remove engine undercover.
- Drain engine coolant into suitable container.
- Remove air cleaner inlet, then the air cleaner and MAF meter assembly.
- Disconnect upper and lower radiator hoses from radiator.
- Disconnect ECM outlet duct from ECM box.
- Disconnect wire for electric cooling fan from clamp on electric cooling fan.
- Disconnect both electric cooling fan connectors.
- Disconnect ECT switch conn...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2001 Lexus IS300 AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2001 Lexus IS300 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 2001 Lexus IS300 AUTOMOBILES
Component location diagrams for most 2001 Lexus IS300 cars and light trucks sold in the U.S. from 1990+.
![]() Components on diagram: |
![]() Components on diagram: |
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WIRING DIAGRAMS FOR 2001 Lexus IS300 AUTOMOBILES
OEM drawn wiring diagrams for most 2001 Lexus IS300 cars and light trucks sold in the U.S.
![]() Components on diagram: |
![]() Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2001 Lexus IS300 AUTOMOBILES
OEM TSB listings for most 2001 Lexus IS300 cars and light trucks sold in the U.S. from 1985+.
Document: ENGINE SERIAL NUMBER LOCATION Vehicle: 2001 Lexus IS300 3.0 L6 GAS Auto Systems: |
Document: PERMANENT-TYPE PROTECTIVE WAX COATINGS Vehicle: 2001 Lexus IS300 3.0 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2001 Lexus IS300 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2001 Lexus IS300 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 2001 Lexus IS300 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 2001 Lexus IS300 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 2001 Lexus IS300 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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