2003 Nissan Altima REPAIR MANUAL -- HOW TO FIX YOUR CAR OR TRUCK

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2003 Nissan Altima CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Nissan 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 Nissan Altima car and truck repair procedures including Nissan 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 Nissan Altima 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 Nissan 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 Nissan Altima 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 Nissan Altima AUTOMOBILES

Import Compressor Service -> Zexel Compressor -> Compressor Seal, Replace
Vehicle: 2003 Nissan Altima 2.5 L4 GAS

  • Remove magnetic clutch assembly as described under "Compressor Clutch, Replace."
  • Drain compressor oil, then using shaft seal remover tool No. J-33942, or equivalent, remove shaft seal cover.
  • Remove bolt with gasket, then the front cylinder head by alternately tapping cylinder head projections with a plastic hammer.
  • ...

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BRAKE SERVICE PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

Nissan -> Hydraulic Brake Systems -> Brake System Bleed -> Anti-Lock Brakes -> Less Anti-Lock Brakes
Vehicle: 2003 Nissan Altima 3.5 V6 GAS

Less Anti-Lock Brakes

Do not spill brake fluid on painted surfaces, it may cause damage to the paint. If brake fluid is spilled, wash immediately with water.

  • Place container under master cylinder to avoid spillage, then fill master cylinder with brake fluid.
  • Connect hose to bleeder valves, then depress brake pedal several times.
  • With pressure applied to pedal open bleeder valve to release air trapped in system.
  • Close bleeder, then release pedal slowly.
  • Repeat steps 3 and 4 as outlined above until all air is removed from system.
  • Bleed air from system in order as follows:
    • Left rear whe...

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FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

Nissan/Datsun -> Fuel Filter Replacement -> 2003-06 Murano, 350Z & 2002-06 Altima -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 2003 Nissan Altima 2.5 L4 GAS

Fuel System Pressure Relief

  • Remove the fuel pump fuse from the fuse panel.
  • Start and run the engine until it stalls.
  • After the engine stalls, crank two or three times to ensure all fuel pressure is relieved.
  • Turn the ignition Off, then install the fuel pump fuse.

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 injury.

Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent a...

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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

CV AXLE SHAFT, Replace -> Front -> Rear
Vehicle: 2003 Nissan Altima 2.5 L4 GAS

Front

Before removing front axle assembly, remove wheel sensor from assembly. Move it away from front axle assembly area. Failure to follow these instructions may result in damage to sensor wires and wheel sensor becoming inoperative.

  • Raise and support vehicle and support it with safety stands in proper locations.
  • Remove wheel nuts and front wheels.
  • On models equipped with ABS, remove ABS wheel sensor. Note before removing front axle assembly, remove ABS wheel sensor from assembly, then position it aside. Failure to follow this instruction may result in damage to sensor or s...

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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

Alternator, Replace
Vehicle: 2003 Nissan Altima 3.5 V6 GAS

  • Disconnect battery ground cable.
  • Drain cooling system into a suitable container.
  • Remove upper radiator hose.
  • Disconnect harness connectors, harness stay and harness to A/C compressor.
  • Release accelerator...

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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

Cabin Air Filter Service -> Nissan -> 2002-04 Altima
Vehicle: 2003 Nissan Altima 2.5 L4 GAS

Under normal operating conditions the cabin air filter should be replaced every 12 months or 15,000 miles. In dusty areas change the cabin air filter more often.

  • Open the glove compartment.
  • Remove the two glove compartment striker retaining screws, Fig. .
  • Remove the two glove compartment retaining screws, then disengage the retaining clips.
  • Lift the glove compartment from the instrument panel, then disconnect the glove compartment lamp.
  • Remove the four glove compartment housing retaining sc...

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MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

Nissan -> Check Engine Lamp ->
Vehicle: 2003 Nissan Altima 3.5 V6 GAS

The Check Engine lamp will light when the ignition is on with engine not running. When the engine is started, then lamp should go out. If it does not, a diagnostic trouble code has been stor...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2003 Nissan Altima 3.5 V6 GAS

Lower

  • Disconnect battery ground cable.
  • Drain cooling system into a suitable container by loosening drain plug of radiator.
  • Reposition hose clamp at radiator outlet.
  • Remove hose from radiator.
  • Reposition hose clamp at water inlet.
  • Remove hose from water inlet.
  • Remove hose from vehicle.
  • Reverse procedure t...

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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 2003 Nissan Altima 3.5 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 Nissan Altima AUTOMOBILES

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

Warning Chime Components and Harness Connector Location Diagram for 2003 Nissan Altima  2.5 L4 GASWarning Chime Components and Harness Connector Location Diagram for 2003 Nissan Altima 2.5 L4 GAS

Components on diagram:
  • Key Lock Solenoid
  • Seat Belt Buckle Switch
  • Key Switch
  • BCM
  • Door Switch
  • Remote Keyless Entry System and Harness Connector Location Diagram for 2003 Nissan Altima  3.5 V6 GASRemote Keyless Entry System and Harness Connector Location Diagram for 2003 Nissan Altima 3.5 V6 GAS

    Components on diagram:
  • Data Link Connector
  • Trunk Release Solenoid
  • Horn Relay
  • Body Control Module
  • Key Lock Solenoid
  • CLICK HERE TO GET FULL ACCESS TO 2003 Nissan Altima PARTS/COMPONENTS LOCATION DIAGRAMS!

    WIRING DIAGRAMS FOR 2003 Nissan Altima AUTOMOBILES

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

    2003 Nissan Altima  2.5 L4 GAS Wiring Diagram2003 Nissan Altima 2.5 L4 GAS Wiring Diagram

    Components on diagram:
  • Battery
  • Engine Control Module
  • Ignition Switch ACC or ON
  • Security Indicator Lamp
  • Immobilizer Control Unit
  • 2003 Nissan Altima  2.5 L4 GAS Wiring Diagram2003 Nissan Altima 2.5 L4 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Trunk Lid Opener Switch
  • Body Control Module
  • Ambient Temperature Sensor
  • Combination Meter
  • CLICK HERE TO GET FULL ACCESS TO 2003 Nissan Altima WIRING DIAGRAMS!

    TECHNICAL SERVICE BULLETINS FOR 2003 Nissan Altima AUTOMOBILES

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

    Document: A/C SYSTEM O-RING SEAL LEAKS
    Vehicle: 2003 Nissan Altima 2.5 L4 GAS

    Auto Systems:
  • Heating, A/C, Ventilation, Defogger
  • Document: WINDSHIELD CRACKING
    Vehicle: 2003 Nissan Altima 2.5 L4 GAS

    Auto Systems:
  • Glass, Doors, Hood, Decklid, Tailgate, Liftgate, Locks
  • CLICK HERE TO GET FULL ACCESS TO 2003 Nissan Altima TECHNICAL SERVICE BULLETINS!

    COMPONENT/PARTS SPECIFICATIONS FOR 2003 Nissan Altima AUTOMOBILES

    BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 2003 Nissan Altima 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 Nissan Altima 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 Nissan Altima 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 Nissan Altima 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 Nissan Altima SPECIFICATIONS DATA!

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    Source: Auto Body Parts Store

    $22.98

    Click here to view more details about 2001 Nissan Altima Wiper Blade, Rear, Passenger Side, Front2001 Nissan Altima Wiper Blade, Rear, Passenger Side, Front, 20 in. length, Includes universal plastic adapters and easy to follow installation instructions; This new generation flat blade provides improved wiping capabilities in rain and freezing weather, long lasting durability, an easy to service design using a rubber insert that requires no special tools or high cost items to replace, and a clean appearance from inside the vehicle with the wiper profile neatly conforming to the base of the windshield; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $4.80

    Click here to view more details2006 Nissan Altima Driver Side HID Head Light Light Lens And Housing, Driver Side HID Head Light Light Lens And Housing; Black Bezel; Except SE-R Models, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $217.50

    Click here to view more details1993 Nissan Altima L4, 2.4 L, 2389 CC Rebuilt Engine, "SOHC, 12 valve, Dist mounts in timing cover, dipstick by #4,, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,745.00

    Click here to view more details2007 Nissan Altima Used Rear Lower Control Arm, Driver Side, 2.5, AUTO, FWD L, main (spring support), Very Good.

    Source: Used Auto Parts Store

    $109.00

    Click here to view more details2009 Nissan Altima Used A/C Compressor, 2.5, AUTO, FWD 2.5L (4 cylinder), Coupe, Very Good.

    Source: Used Auto Parts Store

    $174.00
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