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2003 Toyota Tacoma CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Toyota REPAIR SHOPS DON'T WANT YOU TO KNOW
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- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- 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 2003 Toyota Tacoma 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 Tacoma automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 Toyota Tacoma AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Imported Vehicles
Vehicle: 2003 Toyota Tacoma 2.4 L4 GAS
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BRAKE SERVICE PROCEDURES FOR 2003 Toyota Tacoma AUTOMOBILES
Toyota -> Hydraulic Brake Systems -> Component Service -> Assemble -> Disassemble -> Except Sienna -> Inspection -> Master Cylinder -> Overhaul -> Sienna -> Wheel Cylinders
Vehicle: 2003 Toyota Tacoma 3.4 V6 GAS
Master Cylinder
Except Sienna
Disassemble
For the following procedures, refer to Fig. for assistance.
- Remove master cylinder boot.
- Remove setscrew and reservoir tank, then the cap and strainer from reservoir.
- Remove two grommets and place cylinder in vise.
- Push piston in and remove stopper bolt, Fig. .
- Push pistons in and remove snap ring, then No. 1 piston carefully by hand.
- Place cylinder on edges of two wooden blocks and tap on cylinder until No. 2 piston comes out.
Inspection
Clean components with compressed air. Inspect cylinder bore for rust and scoring. Also, inspect for wear or ...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Toyota Tacoma AUTOMOBILES
Toyota -> Component Locations -> 1995-04 Tacoma & 1996-02 4Runner
Vehicle: 2003 Toyota Tacoma 3.4 V6 GAS
Ref...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Toyota Tacoma AUTOMOBILES
DRIVESHAFT U-JOINT, Replace -> Assemble -> Disassemble
Vehicle: 2003 Toyota Tacoma 2.7 L4 GAS
Disassemble
This procedure describes a driveline equipped with cardan joint in tube yoke. Driveline equipped with companion/slip yoke repeat steps to remove remaining cardan joint.
- Place driveshaft on suitable workbench. Do not damage driveshaft when servicing on workbench. Ensure driveline and components are reference marked to prevent driveline imbalance. Do not tighten driveshaft too tightly in a vise because this will cause driveline to become out of balance and result in driveline vibration.
- Tap outside of bearing cap with a drift to loosen snap ring.
- Remove snap ri...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Toyota Tacoma AUTOMOBILES
Starter, Replace
Vehicle: 2003 Toyota Tacoma 3.4 V6 GAS
- Disconnect battery ground cable.
- On models equipped with audio coded anti-theft system, obtain three-digit system code.
- On all models, if required, remove battery, battery tray and/or igniter bracket.
- Remove air cleaner assembly, if required.
- Disconnect electrical connec...
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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Toyota Tacoma AUTOMOBILES
Toyota -> Low Coolant Lamp ->
Vehicle: 2003 Toyota Tacoma 2.7 L4 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 2003 Toyota Tacoma AUTOMOBILES
Heater Hose, Replace -> Bypass -> Inlet -> Outlet
Vehicle: 2003 Toyota Tacoma 3.4 V6 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 install.
Outlet
- Disconnect battery ground cable.
- Drain cooling system into a suitable container by loosening drain plug of radiator.
- Reposition hose clamp a...
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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Toyota Tacoma AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 2003 Toyota Tacoma 3.4 V6 GAS
- Raise and support vehicle.
- Remove engine under cover.
- Loosen idle pulley lock nut.
- Loosen drive belt tensi...
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COMPONENT LOCATION DIAGRAMS FOR 2003 Toyota Tacoma AUTOMOBILES
Component location diagrams for most 2003 Toyota Tacoma cars and light trucks sold in the U.S. from 1990+.
 Engine Compartment Diagram for 2003 Toyota Tacoma 3.4 V6 GASComponents on diagram: |
 Stop Light Components Diagram for 2003 Toyota Tacoma 2.7 L4 GASComponents on diagram: |
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WIRING DIAGRAMS FOR 2003 Toyota Tacoma AUTOMOBILES
OEM drawn wiring diagrams for most 2003 Toyota Tacoma cars and light trucks sold in the U.S.
 2003 Toyota Tacoma 3.4 V6 GAS Wiring DiagramComponents on diagram: |
 2003 Toyota Tacoma 3.4 V6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 2003 Toyota Tacoma AUTOMOBILES
OEM TSB listings for most 2003 Toyota Tacoma cars and light trucks sold in the U.S. from 1985+.
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Document: A340 TRANSMISSION SOLENOID IDENTIFICATION Vehicle: 2003 Toyota Tacoma 3.4 V6 GAS Auto Systems: |
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Document: LONG TERM VEHICLE STORAGE GUIDELINES Vehicle: 2003 Toyota Tacoma 2.7 L4 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 2003 Toyota Tacoma AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Toyota Tacoma 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 Tacoma 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 Tacoma 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 Tacoma 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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