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2003 Nissan Altima CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Nissan 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!

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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

    Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
    Vehicle: 2003 Nissan Altima 3.5 V6 GAS

    [[table data]]

    CLICK HERE TO GET FULL ACCESS TO 2003 Nissan Altima A/C & HEATER SERVICE PROCEDURES

    BRAKE SERVICE PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

    Nissan -> Power Brake Units -> Description
    Vehicle: 2003 Nissan Altima 3.5 V6 GAS

    The vacuum assist diaphragm assembly multiplies the force exerted on the master cylinder piston in order to increase the hydraulic pressure delivered to the wheel calipers or cylinders, while decreasing the effort required to obtain acceptable stopping performance.

    Vacuum assist units get their ener...

    CLICK HERE TO GET FULL ACCESS TO 2003 Nissan Altima BRAKE SERVICE PROCEDURES

    FUEL FILTER REPLACEMENT PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

    Nissan/Datsun -> Fuel Filter Scheduled Maintenance -> Gasoline Engines -> Normal Service -> Severe Service
    Vehicle: 2003 Nissan Altima 3.5 V6 GAS

    Normal Service

    Service as ...

    CLICK HERE TO GET FULL ACCESS TO 2003 Nissan Altima FUEL FILTER REPLACEMENT PROCEDURES

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

    CV AXLE SHAFT, Replace -> Front
    Vehicle: 2003 Nissan Altima 3.5 V6 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...

    CLICK HERE TO GET FULL ACCESS TO 2003 Nissan Altima DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES

    STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

    Alternator, Replace
    Vehicle: 2003 Nissan Altima 2.5 L4 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...

    CLICK HERE TO GET FULL ACCESS TO 2003 Nissan Altima STARTER & ALTERNATOR REPLACEMENT PROCEDURES

    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...

    CLICK HERE TO GET FULL ACCESS TO 2003 Nissan Altima CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES

    MAINTENANCE LAMP RESET PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

    Nissan -> Four Wheel Drive (4WD) Warning Lamp ->
    Vehicle: 2003 Nissan Altima 2.5 L4 GAS

    When the ignition switch is placed in the on position, the 4WD warning lamp will light as a bulb check but should go off soon after the engine is started. If a malfunction in the 4WD ...

    CLICK HERE TO GET FULL ACCESS TO 2003 Nissan Altima MAINTENANCE LAMP RESET PROCEDURES

    RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

    Heater Hose, Replace -> Bypass -> Inlet -> Outlet
    Vehicle: 2003 Nissan Altima 3.5 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 at heate...

    CLICK HERE TO GET FULL ACCESS TO 2003 Nissan Altima RADIATOR & HOSE REPLACEMENT PROCEDURES

    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...

    CLICK HERE TO GET FULL ACCESS TO 2003 Nissan Altima SERPENTINE BELT SERVICE PROCEDURES

    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+.

    Ground Location Diagram for 2003 Nissan Altima  3.5 V6 GASGround Location Diagram for 2003 Nissan Altima 3.5 V6 GAS

    Components on diagram:
  • Ground M61
  • Engine Control Harness Components Diagram for 2003 Nissan Altima  3.5 V6 GASEngine Control Harness Components Diagram for 2003 Nissan Altima 3.5 V6 GAS

    Components on diagram:
  • Vehicle Speed Sensor
  • Revolution Sensor
  • Battery
  • Starter Motor
  • Generator
  • 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  3.5 V6 GAS Wiring Diagram2003 Nissan Altima 3.5 V6 GAS Wiring Diagram

    Components on diagram:
  • Battery
  • Body Control Module
  • Lighting Switch
  • Unified Meter Control Unit
  • Auto Light Sensor
  • 2003 Nissan Altima  2.5 L4 GAS Wiring Diagram2003 Nissan Altima 2.5 L4 GAS Wiring Diagram

    Components on diagram:
  • Battery
  • Body Control Module
  • Lighting Switch
  • Front Fog Lamp Relay
  • Front Fog Lamp RH
  • 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!

    Shop online for auto body parts, engines, wheels, lights...

    Click here to view more details about 1999 Nissan Altima Splash Shield, Front, Driver Side1999 Nissan Altima Splash Shield, Front, Driver Side, A high quality, OE replacement splash shield; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $10.67

    Click here to view more details2002 Nissan Altima Window Switch, Blade type; 14-prong male terminal; A high quality, direct fit OE replacement window switch; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $130.32

    Click here to view more details2004 Nissan Altima Taillight Passenger Side, Passenger Side Tail Light Assembly, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $42.45

    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 details2004 Nissan Altima Used Brake Master Cylinder, 2.5, AUTO, FWD Without ABS, Very Good.

    Source: Used Auto Parts Store

    $72.00

    Click here to view more details2010 Nissan Altima Used Bumper Bar, Front, 4DR, Black Without foam, Very Good.

    Source: Used Auto Parts Store

    $219.00
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