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2003 Toyota Avalon CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Toyota 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!Select Section
- 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
Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Toyota Avalon car and truck
repair procedures including Toyota 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 Toyota Avalon automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 Toyota Avalon AUTOMOBILES
Import Compressor Service -> Nippondenso Compressor -> Compressor Seal, Replace
Vehicle: 2003 Toyota Avalon XL 3.0 V6 GAS
- Remove felt oil seal, Fig. .
- Remove snap ring using suitable snap ring pliers.
- Remove key from shaft using suitable tools, then apply compressor oil to inner bore of compressor.
- Remove sha...
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BRAKE SERVICE PROCEDURES FOR 2003 Toyota Avalon AUTOMOBILES
Toyota -> Power Brake Units -> Troubleshooting
Vehicle: 2003 Toyota Avalon XL 3.0 V6 GAS
Refer to Fig. for gener...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Toyota Avalon AUTOMOBILES
Toyota -> Fuel Filter Replacement -> 1995-04 Avalon -> Fuel System Pressure Relief -> Models Less Union Bolt Fuel Line Connection -> Models w/Union Bolt Fuel Line Connection -> Removal & Installation
Vehicle: 2003 Toyota Avalon XLS 3.0 V6 GAS
Fuel System Pressure Relief
Models w/Union Bolt Fuel Line Connection
- Obtain the vehicle owners radio theft protection code prior to disconnecting the battery ground cable, if equipped.
- Disconnect the battery ground cable.
- Remove the fuel fill cap to release fuel tank pressure.
- Place a shop towel over the union bolt at top of fuel filter. Slowly loosen the union bolt allowing fuel pressure to bleed down.
- Whenever the union bolt is loosened to relieve fuel system pressure, always replace the bolt gasket.
Models Less Union Bolt Fuel Line Connection
- Obtain the vehicle owners radio theft prot...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Toyota Avalon AUTOMOBILES
CV AXLE SHAFT, Replace
Vehicle: 2003 Toyota Avalon XL 3.0 V6 GAS
The hub bearing could be damaged if it is subjected to the vehicle weight, such as when moving the vehicle with the drive shaft removed.
After disconnecting the drive shaft from the axle hub, work carefully so as not to damage the ABS speed sensor rotor serration on the drive shaft.
- Raise and support vehicle.
- Remove wheel and tire assembly.
- Remove front fender apron seal.
- Drain automatic transmission fluid.
- Remove cotter pin and lock cap from drive shaft lock nut.
- With an assistant applying brakes, remove drive shaft lock nut.
- Disconnect tie rod end from steering knuckle.
- Disconne...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Toyota Avalon AUTOMOBILES
Starter, Replace
Vehicle: 2003 Toyota Avalon XLS 3.0 V6 GAS
- Disconnect battery ground cable.
- On models equipped with coded audio anti-theft systems, refer to code procedures.
- On all models, remove battery and tray.
- On models equipped with cruise control, remove cruise control actuator as follows:
- Remove bolt, clip and actuator cover.
- Disconnect actuator co...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Toyota Avalon AUTOMOBILES
Cabin Air Filter Service -> Toyota -> 2000-04 Avalon
Vehicle: 2003 Toyota Avalon XLS 3.0 V6 GAS
On 2000-02 models, under normal operating conditions the cabin air filter should be replaced every 15,000 miles. In dusty areas change the cabin air filter every 10,000 miles.
On 2003-04 models, under normal operating conditions the cabin air filter should be replaced every 22,500 miles. In dusty areas change the cabin air filter every 10,000 miles.
- Open the glove compartment door.
- Remove the five screws retaining the glove compartment to the instrument panel, Fig. .
- Disengage the glove compartment retaining clips using a screwdriver with tape placed over the screwdriver tip.
- Carefull...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Toyota Avalon AUTOMOBILES
Toyota -> Air Bag Warning Lamp -> 2003-09 Avalon
Vehicle: 2003 Toyota Avalon XL 3.0 V6 GAS
- Connect two service wires to terminals Tc and CG of data link connector.
- Disconnect Tc within 10 seconds after DTC output begins.
- SRS warning lamps will illuminate 3 seconds later. Within 2-4 seconds, connect terminals Tc and CG of DLC.
- SRS warning lamp will go off within 2-4 seconds. Within 2-4 seconds, disconnect term...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Toyota Avalon AUTOMOBILES
Radiator, Replace
Vehicle: 2003 Toyota Avalon XLS 3.0 V6 GAS
- On models equipped with coded audio anti-theft systems, complete code procedures.
- On all models, raise and support vehicle.
- Drain coolant from engine and radiator into a suitable container.
- Remove battery and tray, then disconnect cruise control actuator and mounting from body.
- Disconnect upper radiator and coolant reservoir hoses from radiator.
- Disconnect lower radiator hose at engine, then tran...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Toyota Avalon AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 Toyota Avalon XLS 3.0 V6 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 2003 Toyota Avalon AUTOMOBILES
Component location diagrams for most 2003 Toyota Avalon cars and light trucks sold in the U.S. from 1990+.
 Instrument Panel Diagram for 2003 Toyota Avalon XL 3.0 V6 GASComponents on diagram: |
 Theft Deterrent Components Diagram for 2003 Toyota Avalon XLS 3.0 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2003 Toyota Avalon AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Toyota Avalon cars and light trucks sold in the U.S.
 2003 Toyota Avalon XLS 3.0 V6 GAS Wiring DiagramComponents on diagram: |
 2003 Toyota Avalon XLS 3.0 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 Toyota Avalon AUTOMOBILES
OEM TSB listings for most 2003 Toyota Avalon cars and light trucks sold in the U.S. from 1985+.
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Document: LONG TERM VEHICLE STORAGE GUIDELINES Vehicle: 2003 Toyota Avalon XL 3.0 V6 GAS Auto Systems: |
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Document: ENGINE "PINGING" OR "KNOCKING" NOISE - REVISED Vehicle: 2003 Toyota Avalon XL 3.0 V6 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 Toyota Avalon AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Toyota Avalon 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 2003 Toyota Avalon 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 2003 Toyota Avalon 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 2003 Toyota Avalon 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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