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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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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Starter & Alternator Replacement
- Cabin Air Filter Locations & Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES
Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Imported Vehicles
Vehicle: 2003 Nissan Altima 3.5 V6 GAS
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BRAKE SERVICE PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES
Nissan -> Power Brake Units -> Adjustments -> Output Rod
Vehicle: 2003 Nissan Altima 3.5 V6 GAS
Output Rod
- Apply 19.96 inch HG of vacuum to brake booster using a suitable vacuum pump, ...
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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 3.5 V6 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 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 -> Anti-Lock Warning Lamp -> 1993-2006 Altima
Vehicle: 2003 Nissan Altima 2.5 L4 GAS
This lamp will be illuminated when the ignition switch is placed in the on position as a bulb check. If the lamp remains lit or lights during vehicle operation, a problem in the anti-lock brake/traction control system is indicated. When the lamp is lit, place the ignition switch in the off position, then restart the engine. If the lamp remains lit, the system must be serviced. The basic brake system will remain functional. After servicing the system, proceed as follows:
- On 1993-99 models, locate the DLC located behind instrument panel fuse panel cover.
- On 2000-06 models, locate t...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 2003 Nissan Altima AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 2003 Nissan Altima 2.5 L4 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 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+.
Engine Control Harness Components Diagram for 2003 Nissan Altima 2.5 L4 GAS Components on diagram: |
Warning Chime Components and Harness Connector Location Diagram for 2003 Nissan Altima 2.5 L4 GAS Components on diagram: |
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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 Diagram Components on diagram: |
2003 Nissan Altima 3.5 V6 GAS Wiring Diagram Components on diagram: |
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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: |
Document: WINDSHIELD CRACKING Vehicle: 2003 Nissan Altima 2.5 L4 GAS Auto Systems: |
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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
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