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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

Import Compressor Service -> Zexel Compressor -> Clutch Air Gap, Adjust
Vehicle: 2003 Nissan Altima 3.5 V6 GAS

  • Inspect clearance around entire clutch disc using a feeler gauge.
  • Disc pulley clearance should ...

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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 Scheduled Maintenance -> Gasoline Engines -> Normal Service -> Severe Service
Vehicle: 2003 Nissan Altima 2.5 L4 GAS

Normal Service

Service as ...

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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...

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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 3.5 V6 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 -> All Wheel Drive (AWD) Warning Lamp ->
Vehicle: 2003 Nissan Altima 2.5 L4 GAS

When the ignition switch is placed in the on position, the AWD warning lamp will light as a bulb check but should go off soon after the engine is started. If a malfunction in the AWD system exist or if fr...

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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

Heater Hose, Replace -> Bypass -> Inlet -> Outlet
Vehicle: 2003 Nissan Altima 2.5 L4 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...

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SERPENTINE BELT SERVICE PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES

Serpentine Drive Belt, Replace
Vehicle: 2003 Nissan Altima 2.5 L4 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+.

Rear Door Lock Components Diagram for 2003 Nissan Altima  2.5 L4 GASRear Door Lock Components Diagram for 2003 Nissan Altima 2.5 L4 GAS

Components on diagram:
  • Door Lock Actuator
  • Door Lock
  • Inside Handle Cable
  • Inside Handle
  • Outside Handle
  • HVAC Components Diagram for 2003 Nissan Altima  3.5 V6 GASHVAC Components Diagram for 2003 Nissan Altima 3.5 V6 GAS

    Components on diagram:
  • Fan Control Amplifier
  • 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
  • Homelink Universal Transceiver
  • 2003 Nissan Altima  3.5 V6 GAS Wiring Diagram2003 Nissan Altima 3.5 V6 GAS Wiring Diagram

    Components on diagram:
  • Transmission Control Module
  • Vehicle Speed Sensor
  • Battery
  • Engine Control Module
  • Unified Meter Control Unit
  • 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

    $22.82

    Click here to view more details about 2001 Nissan Altima Headlight, Passenger Side2001 Nissan Altima Headlight, Passenger Side, Bulbs included; Composite and combination type; DOT and SAE approved; A high quality, OE replacement headlight assembly; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $81.32

    Click here to view more details about 2014 Nissan Altima 16" Aftermarket Wheel Cover2014 Nissan Altima 16" Aftermarket Wheel Cover, Aftermarket Wheel Cover; 16IN; Chrome; 13- Altima, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $53.50

    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 details2000 Nissan Altima Used Parking Lamp, Passenger Side, hazyR, Fog/Driving; (bumper-mtd), R., Good.

    Source: Used Auto Parts Store

    $122.00

    Click here to view more details2007 Nissan Altima Used Air Bag, PASSENGER, DASH, SDN, Very Good.

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