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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Nissan Frontier 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 2003 Nissan Frontier automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 2003 Nissan Frontier

  • 2003 Nissan Frontier 2.4 L4 GAS, CC:2389, Fuel Injection
  • 2003 Nissan Frontier 3.3 V6 GAS, CC:3275, Fuel Injection
  • 2003 Nissan Frontier 3.3 V6 GAS, CC:3275, Fuel Injection

A/C & HEATER SERVICE PROCEDURES FOR 2003 Nissan Frontier AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2003 Nissan Frontier cars and light trucks from 1990+

Nissan -> Electric Cooling Fans -> Component Diagnosis & Testing -> Radiator Fan Motors -> Radiator Fan Relays
Vehicle: 2003 Nissan Frontier 2.4 L4 GAS

Radiator Fan Relays

Refer to Figs. and , for fan relay testing. If test results are not as specified, repla...

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

A/C & HEATER SERVICE PROCEDURES FOR 2003 Nissan Frontier AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2003 Nissan Frontier cars and light trucks from 1990+

Nissan -> Automatic Temperature Control System Diagnosis & Testing -> Precautions -> Air Bag System Disarming & Arming -> Battery Ground Cable -> Product Compatibility
Vehicle: 2003 Nissan Frontier 3.3 V6 GAS

Air Bag System Disarming & Arming

Refer to and for air bag system disarming and arming procedures.

Battery Ground Cable

Prior to service, disconnect battery ground cable ...

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

A/C & HEATER SERVICE PROCEDURES FOR 2003 Nissan Frontier AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2003 Nissan Frontier cars and light trucks from 1990+

Nissan -> Component Replacement & Adjustment -> Automatic Amplifier, Replace -> 350Z -> Altima -> Maxima -> Murano
Vehicle: 2003 Nissan Frontier 3.3 V6 GAS

Altima

  • Remove instrument cluster lid.
  • Remove radio.
  • Remove mounting screws and automatic amplifier, then disconnect connectors.
  • Reverse procedure to install.

Maxima

  • Remove shift knob and bezel.
  • Remove cluster lids C and D.
  • Remove center stack.
  • Remove mounting bolts at rear of unified meter and auto amplifier.
  • Remove mounting bolts on display screen side.
  • Spread bracket top, then remove unified ...

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

A/C & HEATER SERVICE PROCEDURES FOR 2003 Nissan Frontier AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2003 Nissan Frontier cars and light trucks from 1990+

Nissan -> Automatic Temperature Control System Diagnosis & Testing -> System Performance Test
Vehicle: 2003 Nissan Frontier 3.3 V6 GAS

  • Parked vehicle indoors, or in shaded and well ventilated place.
  • Close vehicle doors.
  • Open driver door window and hood.
  • Set TEMP switch to maximum cold position.
  • Set mode switch to ventilation position.
  • Set REC switch to recirculation position.
  • Set blower speed to maximum position.
  • Start and run engine at idle speed.
  • Operate air conditioning system at least 10 minutes before taking measurements.
  • O...

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

A/C & HEATER SERVICE PROCEDURES FOR 2003 Nissan Frontier AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2003 Nissan Frontier cars and light trucks from 1990+

Nissan -> Wiring Diagrams -> Frontier & Xterra
Vehicle: 2003 Nissan Frontier 3.3 V6 GAS

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

A/C & HEATER SERVICE PROCEDURES FOR 2003 Nissan Frontier AUTOMOBILES

Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported 2003 Nissan Frontier cars and light trucks from 1990+

Nissan -> Component Replacement & Adjustment -> Thermostat, Replace -> 1.8L Engine -> 2.4L Engine -> 2.5L Engine -> 3.3L Engine -> 3.5L Engine -> 350Z -> Altima -> Frontier & Xterra -> Maxima -> Murano -> Pathfinder -> Pathfinder Armada -> Quest -> Sentra
Vehicle: 2003 Nissan Frontier 2.4 L4 GAS

Altima

2.5L Engine
  • Drain engine coolant into suitable container.
  • Remove lower radiator hose from engine coolant inlet side, Fig. .
  • Remove engine coolant inlet and thermostat.
  • Reverse procedure to install. Install thermostat with jiggle valve facing upwards. Deviation must be within 10°.
3.5L Engine
  • Remove engine under cover.
  • Drain radiator coolant into suitable container.
  • Remove drive belts.
  • Remove water drain plug on water pump side.
  • Remove lower radiator hose.
  • Remove engine coolant inl...

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

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

Click here to view more details about 2008 Nissan Frontier Grille Assembly2008 Nissan Frontier Grille Assembly, Made Of Durable Stainless Steel, Offers An Unmatched Shiny Finish That Lasts Longer, Features A Break-Through Design To Give Your Vehicle The Next Generation Look.

Source: Auto Body Parts Store

$142.25

Click here to view more details2004 Nissan Frontier Window Switch, Blade type; 14-prong male terminal; A high quality, direct fit OE replacement window switch; With 1-year limited TruckEFX warranty..

Source: Auto Body Parts Store

$130.32

Click here to view more details2012 Nissan Sentra Pillar Post Covers, PILLAR POST COVERS, 6 PIECE SET , , .

Source: Wheels / Rims, Mirrors & Lights Store

$58.79

Click here to view more details2004 Nissan Frontier L4, 2.4 L, 144 CID Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .

Source: Rebuilt Engines Store

Ad Hoc

Click here to view more details2007 Nissan Frontier Used Engine Computer, MEC70-050-B1-7220, RG, Very Good.

Source: Used Auto Parts Store

$293.00

Click here to view more details1998 Nissan Frontier Used AM-FM-Cassette, recvr, AM-FM-stereo-cass, Very Good.

Source: Used Auto Parts Store

$70.00
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