1999 Hyundai Sonata Service and Repair Manual

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Factory-Grade Data

1999 Hyundai Sonata 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

  • Base Sedan 4-Door
  • GLS Sedan 4-Door

Engines covered

  • 2.4L 2351CC l4 GAS DOHC Naturally Aspirated
  • 2.5L 2493CC V6 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

1999 Hyundai Sonata Recalls & Complaints

NHTSA #09V12400016/04/2009Component: SUSPENSION

HYUNDAI IS RECALLING 188,282 MY 2001-2004 SONATA AND MY 2001-2004 XG300 AND XG350 VEHICLES ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, M

Consequence

IF THAT HAPPENS, THE VEHICLE MAY LOSE DRIVE POWER TO THE WHEELS, AND THE FRONT WHEEL MAY MAKE CONTAC

Remedy

DEALERS WILL MEASURE THE THICKNESS OF THE FRONT SUB-FRAME AND INSPECT THE FRONT SUB-FRAME FOR CORROS

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

TSB #10217251

Follow the guidelines outlined in this bulletin to inspect and clean or replace certain components of the engine intake system accordingly during engine short block or sub-assembly replacement.

TSB #10196546

Hyundai approves only the ATF, DCT gear oil and IVT gear oil specified in the vehicles owners manual. Use of other ATF may result in improper shift quality or other drivability conditions. Use of other DCT and IVT gear oil may result in red

TSB #10190044

This bulletin provides the service procedure for engine connecting rod bearing clearance testing. Perform the procedure outlined in this bulletin to fulfill the Bearing Clearance Test inspection requirements to determine next required steps

TSB #10190038

This bulletin provides best practice recommendations when performing brake service procedures.

Showing the 8 most recent of 122 technical service bulletins on file with NHTSA.

20050706Component: AIR BAGS:FRONTALCrash reported9 injured

DT: CONSUMER WAS INVOLVED IN AN ACCIDENT WHILE TRAVELING ON HIGHWAY AT 55 MPH. ANOTHER VEHICLE PULLED OUT IN FRONT OF CONSUMER'S VEHICLE AND IT STRUCK THE RIGHT SIDE OF OTHER VEHICLE. UPON IMPACT

20050804Component: AIR BAGS:FRONTALCrash reported3 injured

DT: CONSUMER TOOK VEHICLE FOR SERVICE TO DEALER. THE AIRBAG LIGHT WAS ON. TOOK VEHICLE TO THE DEALER 3 TIMES FOR THE AIRBAG LIGHT. EACH TIME IT WENT TO THE DEALER THE AIRBAG LIGHT WOULD BE OFF WHEN C

20100819Component: ENGINE AND ENGINE COOLINGCrash reported2 injured

TL* THE CONTACT OWNS A 1999 HYUNDAI SONATA. THE CONTACT RECEIVED REPAIRS UNDER NHTSA CAMPAIGN ID NUMBER: 09V124000 (SUSPENSION). THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC BECAUSE THE MOTOR WAS EXCESSI

20100819Component: STEERINGCrash reported2 injured

TL* THE CONTACT OWNS A 1999 HYUNDAI SONATA. THE CONTACT RECEIVED REPAIRS UNDER NHTSA CAMPAIGN ID NUMBER: 09V124000 (SUSPENSION). THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC BECAUSE THE MOTOR WAS EXCESSI

20010604Component: AIR BAGS:FRONTALCrash reported2 injured

AIR BAGS DID NOT DEPLOY IN A 50MPH HEAD-ON COLLISION. *AK

Showing the 5 most serious of 187 complaints filed with NHTSA.

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