2004 Hyundai Elantra Service and Repair Manual

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Factory-Grade Data

2004 Hyundai Elantra service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical diagnostics with wiring diagrams
  • Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more

Trims covered

  • GLS Sedan 4-Door
  • GT Sedan 4-Door
  • GT Hatchback 4-Door

Engines covered

  • 2.0L 1975CC l4 GAS DOHC Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

2004 Hyundai Elantra Recalls & Complaints

NHTSA #04V37000030/07/2004Component: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

DURING AN INSURANCE INSTITUTE FOR HIGHWAY SAFETY (IIHS) OFFSET FRONTAL BARRIER IMPACT TEST, IT WAS DETERMINED THAT FUEL TAN DAMAGE COULD OCCUR. ON CERTAIN PASSENGER VEHICLES, A VAPOR TUBE HOSE CLAMP

Consequence

FUEL LEAKAGE IN THE PRESENCE OF AN IGNITION SOURCE MAY RESULT IN A FIRE.

Remedy

DEALERS WILL INSPECT THE POSITION OF THE VAPOR TUBE HOSE CLAMP EARS AND CORRECTLY POSITION THE CLAMP

NHTSA #03V32200026/08/2003Component: AIR BAGS

ON CERTAIN VEHICLES, IF THE FRONT PASSENGER SEAT IS UNOCCUPIED OR IS OCCUPIED BY SOMEONE LIGHTER THAN 56.4 POUNDS, THE PASSENGER AIR BAG IS DEACTIVATED AND WILL NOT DEPLOY IF A CRASH OCCURS. HOWEVER

Consequence

IN THE EVENT OF A VEHICLE CRASH, THE AIR BAG MAY NOT DEPLOY, POSSIBLY RESULTING IN SERIOUS INJURY TO

Remedy

THE OCCUPANT CLASSIFICATION SENSOR WILL BE REPROGRAMMED.

NHTSA #05V47900017/10/2005Component: AIR BAGS

CERTAIN VEHICLES EQUIPPED WITH AN ADVANCED AIR BAG SYSTEM. THE OCCUPANT CLASSIFICATION SYSTEM (OCS) INSTALLED IN THE RIGHT FRONT SEAT OF THE VEHICLE MAY MISCLASSIFY A CHILD RESTRAINT SEAT (CRS) AS

Consequence

THE POSSIBILITY OF MISCLASSIFICATION OF A CRS AS AN ADULT MAY ALLOW THE RIGHT FRONT AIRBAG OR SIDE I

Remedy

DEALERS WILL REPROGRAM THE VEHICLE'S OCS ELECTRONIC CONTROL UNIT (ECU) TO REMOVE THE FEATURE THAT MA

NHTSA #05V39500012/09/2005Component: AIR BAGS

CERTAIN VEHICLES EQUIPPED WITH AN ADVANCED AIR BAG SYSTEM. THE OCCUPANT CLASSIFICATION SYSTEM (OCS) INSTALLED IN THE RIGHT FRONT SEAT OF THE VEHICLE MAY MISCLASSIFY A CHILD RESTRAINT SEAT (CRS) AS

Consequence

THE POSSIBILITY OF MISCLASSIFICATION OF A CRS AS AN ADULT MAY ALLOW THE RIGHT FRONT AIRBAG OR SIDE I

Remedy

DEALERS WILL REPROGRAM THE VEHICLE'S OCS ELECTRONIC CONTROL UNIT (ECU) TO REMOVE THE FEATURE THAT MA

NHTSA #04V20800003/05/2004Component: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

DURING AN INSURANCE INSTITUTE FOR HIGHWAY SAFETY (IIHS) OFFSET FRONTAL BARRIER IMPACT TEST ON CERTAIN PASSENGER VEHICLES, FUEL SPILLAGE OCCURRED AS A RESULT OF FUEL TANK DAMAGE CAUSED BY CONTACT BETWE

Consequence

IN THE EVENT OF A CRASH, DAMAGE TO THE VEHICLE COULD CAUSE THE MISPOSITIONED CLAMP TO PUNCTURE THE F

Remedy

DEALERS WILL INSPECT THE POSITION OF THE VAPOR TUBE HOSE CLAMP AND CORRECTLY POSITION THE CLAMP, IF

TSB #11032523

The National Highway Traffic Safety Administration (NHTSA) has identified the presence of substandard and dangerous drivers-side airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN). These infla

TSB #11032522

The National Highway Traffic Safety Administration (NHTSA) has issued an urgent safety advisory regarding dangerous, counterfeit driverside airbag inflators manufactured by Jilin Province Detiannuo Automobile Safety System Co., Ltd. (DTN),

TSB #11025476

This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside th

TSB #10251285

This bulletin contains information about the proper removal of the windshield wiper blade protective cover on all models. If the protective cover is not removed correctly, there is a possibility of the rubber insert and rail spring becoming

TSB #10247189

This bulletin provides important checkpoint guidelines when performing engine oil and filter change services.

TSB #10235566

Hyundai applies a Paint Protection Film (PPF) on new vehicles before delivery to dealerships. It provides a barrier between the paint and contaminants, such as rail dust, acid rain, and industrial fallout. In rare cases, the paint can becom

TSB #10230904

This bulletin provides information regarding condensation related to the accumulated moisture in the headlamp, rear combination lamp, daytime running lamp (DRL), or fog lamp. This TSB illustrates the various causes of condensation inside th

TSB #10217258

Effective June 2, 2008, Federal Motor Vehicle Safety Standard 110 (FMVSS 110) established a threshold for correcting load carrying capacity information indicated on tire placards when vehicle weight has been increased before retail sale. Th

Showing the 8 most recent of 56 technical service bulletins on file with NHTSA.

20150812Component: SERVICE BRAKESCrash reported4 injured

TL* THE CONTACT OWNED A 2004 HYUNDAI ELANTRA. WHILE DRIVING APPROXIMATELY 60 MPH, THE BRAKE PEDAL WAS DEPRESSED AND SEIZED WITHOUT WARNING AND THE STEERING WHEEL SEIZED. AS A RESULT, THE VEHICLE CRASH

20150812Component: STEERINGCrash reported4 injured

TL* THE CONTACT OWNED A 2004 HYUNDAI ELANTRA. WHILE DRIVING APPROXIMATELY 60 MPH, THE BRAKE PEDAL WAS DEPRESSED AND SEIZED WITHOUT WARNING AND THE STEERING WHEEL SEIZED. AS A RESULT, THE VEHICLE CRASH

20050513Component: SEAT BELTSCrash reported3 injured

2004 HYUNDAI ELANTRA SEAT BELTS BROKE. THE VEHICLE WAS HIT BY ANOTHER VEHICLE AND THE AIR BAGS FAILED TO DEPLOY. *MR THE SEAT BELTS BROKE AND TORE OUT. ANOTHER VEHICLE HIT THE CONSUMER HEAD ON.

20050513Component: AIR BAGSCrash reported3 injured

2004 HYUNDAI ELANTRA SEAT BELTS BROKE. THE VEHICLE WAS HIT BY ANOTHER VEHICLE AND THE AIR BAGS FAILED TO DEPLOY. *MR THE SEAT BELTS BROKE AND TORE OUT. ANOTHER VEHICLE HIT THE CONSUMER HEAD ON.

20101025Component: AIR BAGSCrash reported2 injured

TL*THE CONTACT OWNS A 2004 HYUNDAI ELANTRA. WHILE DRIVING AND FAILING TO STOP AT A STOP SIGN, THE CONTACT T-BONED ANOTHER VEHICLE AND CRASHED INTO IT. THE AIR BAGS DID NOT DEPLOY. THERE WERE TWO PEOPL

Showing the 5 most serious of 209 complaints filed with NHTSA.

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