2003 Chevrolet Impala REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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2003 Chevrolet Impala CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW

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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Chevrolet Impala car and truck repair procedures including Chevrolet 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 Chevrolet Impala automobile. Try the Automotix DIY solution today!
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Using the Automotix DIY repair procedures will save you hundreds and even thousands of dollars! In addition, it will save you hours of touring the city searching for Chevrolet mechanics you can trust. The Automotix DIY solution is particularly affordable. A full access to the entire DIY repair procedures and diagrams for your 2003 Chevrolet Impala vehicle will cost less than a single gallon of gas. Here are some of the DIY repair tips and procedures you will find here:

A/C & HEATER SERVICE PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES

Cooling System Capacities -> General Motors Corp./Saturn Passenger Cars -> 2003-04
Vehicle: 2003 Chevrolet Impala 3.8 V6 GAS

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BRAKE SERVICE PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES

Power Brake Units -> Power Brake Unit Service
Vehicle: 2003 Chevrolet Impala 3.8 V6 GAS

Hydro-boost brake boosters are...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES

General Motors Corp./Saturn Passenger Cars -> Fuel Filter Replacement -> Except Aveo, Chevette 1.8L Diesel, Corvette, GTO, LaCrosse, Malibu (2004-06) & Malibu Maxx, Vibe, XLR, 2004-05 Corvette & 1998-2002 Metro & Prizm
Vehicle: 2003 Chevrolet Impala 3.8 V6 GAS

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 injury.

Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.

After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the v...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES

CV AXLE SHAFT, Replace
Vehicle: 2003 Chevrolet Impala 3.4 V6 GAS

  • Raise and suitably support vehicle.
  • Remove wheel and tire.
  • Remove stabilizer shaft link.
  • Remove front wheel drive shaft nut. Insert a drift or a flat-bladed tool into caliper and rotor to prevent rotor from turning.
  • Disconnect outer tie rod assembly from steering knuckle.
  • Separate ball joint from steering knuckle. Do not attempt to move vehicle with drive axle(s) removed from wheel bearing. Wheel(s) could fall off, dropping vehicle to ground and causing personal injury or damage to vehicle.
  • Separate front wheel drive axle from front wheel drive shaft bearing using a suitable pu...

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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES

Diagnosis & Testing -> Accessing Diagnostic Trouble Codes -> Diagnostic Tests -> Intermittent & Poor Connections -> Intermittents -> Poor Connections
Vehicle: 2003 Chevrolet Impala 3.8 V6 GAS

Accessing Diagnostic Trouble Codes

Connect a suitably programmed scan tool to DLC (Data Link Connector) and follow manufacturer's instructions.

Diagnostic Tests

Refer to Figs. through for diagnostic test procedures.

Intermittent & Poor Connections

Intermittents

Most intermittents are caused by faulty electrical connections or wiring. Inspect for the following:

  • Wiring broken inside insulation.
  • Poor connection between male and female terminal at connector.
  • Poor terminal to wire connection. Some conditions which fall under this are:
    • Poor crimps.
    • Poor solder joints.
    • Crimping over wire ins...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES

Alternator, Replace
Vehicle: 2003 Chevrolet Impala 3.8 V6 GAS

  • Disconnect battery ground cable.
  • Remove serpentine drive belt tension by rotating drive belt tensioner counterclockwise using a suitable breaker bar.
  • Remove s...

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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES

Cabin Air Filter Service -> General Motors Corp./Saturn -> 1997-2005 Century, Regal, 1998-2002 Intrigue & 2000-05 Impala & Monte Carlo
Vehicle: 2003 Chevrolet Impala 3.4 V6 GAS

Under normal operating conditions the cabin air filter should be replaced every 15,000 miles. In dusty areas change the cabin air filter more often.

  • Place the windshield wipers in the up position by turning the ignition switch Off when the wipers reach the desired position.
  • Open the hood.
  • Lift the righthand side of the rear hood seal from the flange in the area of the rig...

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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES

General Motors Corp./Saturn Cars -> Active Handling System Warning Lamp ->
Vehicle: 2003 Chevrolet Impala 3.8 V6 GAS

This lamp should light for a approximately 6-8 seconds when the ignition is turned on as a bulb check. The lamp will also come on as the system is...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES

Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2003 Chevrolet Impala LS 3.8 V6 GAS

Inlet

  • Drain cooling system into a suitable container.
  • Reposition inlet heater hose clamp from heater core pipe.
  • Remove hose from heater core.
  • Reposition heater hose clamp from heater hose inlet pipe.
  • Remove inlet heater hose from heater hose inlet pipe.
  • Remove hose from vehicle.
  • Reverse procedure to ...

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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Chevrolet Impala AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 2003 Chevrolet Impala 3.4 V6 GAS

  • Rotate tensioner clockwise using a b...

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COMPONENT LOCATION DIAGRAMS FOR 2003 Chevrolet Impala AUTOMOBILES

Component location diagrams for most 2003 Chevrolet Impala cars and light trucks sold in the U.S. from 1990+.

Front of Engine Diagram for 2003 Chevrolet Impala LS 3.8 V6 GASFront of Engine Diagram for 2003 Chevrolet Impala LS 3.8 V6 GAS

Components on diagram:
  • Throttle Position Sensor
  • Manifold Absolute Pressure Sensor
  • Mass Air Flow Sensor
  • Idle Air Control Valve
  • Crankshaft Position Sensor
  • Front of Right Rear Door Trim,Left Rear Similar Diagram for 2003 Chevrolet Impala  3.4 V6 GASFront of Right Rear Door Trim,Left Rear Similar Diagram for 2003 Chevrolet Impala 3.4 V6 GAS

    Components on diagram:
  • Window Switch, RR
  • Window Switch, RR Connector
  • CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Impala PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 2003 Chevrolet Impala AUTOMOBILES

    OEM drawn wiring diagrams for most 2003 Chevrolet Impala cars and light trucks sold in the U.S.

    2003 Chevrolet Impala  3.8 V6 GAS Wiring Diagram2003 Chevrolet Impala 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Window Lockout Switch
  • Express Down Module
  • Window Switch -Front Passenger
  • Window Switch -Driver
  • 2003 Chevrolet Impala LS 3.8 V6 GAS Wiring Diagram2003 Chevrolet Impala LS 3.8 V6 GAS Wiring Diagram

    Components on diagram:
  • Blower Motor Resistor Assembly
  • Blower Motor
  • Blower Motor Relay
  • Heater/Vent/Air Conditioner Control Module
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    TECHNICAL SERVICE BULLETINS FOR 2003 Chevrolet Impala AUTOMOBILES

    OEM TSB listings for most 2003 Chevrolet Impala cars and light trucks sold in the U.S. from 1985+.

    Document: Revised General Motors New Vehicle Tire Warranty Program
    Vehicle: 2003 Chevrolet Impala 3.8 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • Wheels, Tires, Wheel Bearings, Seals, Hubs
  • Document: New Website for AFIT, TPM, and VDR Updates
    Vehicle: 2003 Chevrolet Impala 3.8 V6 GAS

    Auto Systems:
  • Labor Times, Manuals, Warranty, Aids
  • CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Impala TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 2003 Chevrolet Impala AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Chevrolet Impala 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 Chevrolet Impala 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 Chevrolet Impala 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 Chevrolet Impala 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

    CLICK HERE TO GET FULL ACCESS TO 2003 Chevrolet Impala SPECIFICATIONS DATA!

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