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2004 Toyota Sienna 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
- Tire Pressure Monitoring System
- Starter & Alternator 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 2004 Toyota Sienna 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 Sienna automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
A/C & Cooling System Maintenance -> Toyota -> 2003-04 Avalon, Camry, Camry Solara, Celica, Corolla, Matrix & Sienna
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Toyota -> Power Brake Units -> Diagnosis & Testing -> Air Tightness Check -> Brake Booster Operational Test -> Operating Check
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
Brake Booster Operational Test
Operating Check
- Depress brake pedal several times with engine stopped, and ensure pedal reserve distance has no change, Fig. .
- Depress brake pedal and start engine. If pedal drops slightly, operation is normal.
Air Tightness Check
- Start engine and stop after one or two minutes.
- Depress brake peda...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Toyota -> Fuel Filter Replacement -> 2004-06 Sienna -> Fuel System Pressure Relief -> Models Less Union Bolt Fuel Line Connection -> Models w/Union Bolt Fuel Line Connection -> Removal & Installation
Vehicle: 2004 Toyota Sienna 3.3 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 2004 Toyota Sienna AUTOMOBILES
DRIVESHAFT, Replace
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
- Raise and support vehicle.
- Remove exhaust pipe.
- Have an assistant depress and hold brake pedal.
- Loosen the cross groove joint set bolts a 1/2 turn.
- Place reference marks on both flanges.
- Remove nuts, bolts and washers at flanges.
- Remove bolts and adjusting shims from...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Reset Procedures
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
This warning lamp will illuminate when tire pressure falls below a specified psi. When the warning lamp illuminates, check the air...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Alternator, Replace
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
- Disconnect battery ground cable at battery.
- Remove wire harness clamp.
- Disconnect alternator connector.
- Open terminal cap and remove nut and alternator wire.
- Loosen alternator mounting bolts.
- Loosen bolt to lessen tension of V belt No. 1.
- ...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Toyota -> Low Coolant Lamp ->
Vehicle: 2004 Toyota Sienna 3.3 V6 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 2004 Toyota Sienna AUTOMOBILES
Radiator, Replace
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
- Drain engine coolant into suitable container.
- Disconnect No. 1 and No. 2 electric cooling fan connectors.
- Remove upper radiator hose from radiator.
- Remove lower radiator hose from water inlet pipe.
- Remove two oil cooler hoses from oil cooler pipe...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2004 Toyota Sienna AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2004 Toyota Sienna 3.3 V6 GAS
- Raise and support vehicle.
- Remove right front wheel.
- Remove bolts from righthand fender apron seal, then remove apron seal.
- Rotate or lift belt tensioner arm counterclockwise, usi...
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COMPONENT LOCATION DIAGRAMS FOR 2004 Toyota Sienna AUTOMOBILES
Component location diagrams for most 2004 Toyota Sienna cars and light trucks sold in the U.S. from 1990+.
 Power Back Door System Diagram for 2004 Toyota Sienna 3.3 V6 GASComponents on diagram: |
 Multiplex Communication System Diagram for 2004 Toyota Sienna 3.3 V6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2004 Toyota Sienna AUTOMOBILES
OEM drawn wiring diagrams for most 2004 Toyota Sienna cars and light trucks sold in the U.S.
 2004 Toyota Sienna 3.3 V6 GAS Wiring DiagramComponents on diagram: |
 2004 Toyota Sienna 3.3 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2004 Toyota Sienna AUTOMOBILES
OEM TSB listings for most 2004 Toyota Sienna cars and light trucks sold in the U.S. from 1985+.
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Document: BRAKE BOOSTER RATTLE/BUZZ NOISE Vehicle: 2004 Toyota Sienna 3.3 V6 GAS Symptoms: |
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Document: POWER FUNCTION OF SLIDING DOOR INOPERATIVE Vehicle: 2004 Toyota Sienna 3.3 V6 GAS Symptoms: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2004 Toyota Sienna AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2004 Toyota Sienna 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 2004 Toyota Sienna 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 2004 Toyota Sienna 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 2004 Toyota Sienna 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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