1998 Kia Sephia 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.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- Base Sedan 4-Door
- LS Sedan 4-Door
Engines covered
- 1.8L 1793CC 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
ON CERTAIN PASSENGER VEHICLES WITH 36,000 MILES OR LESS AS OF JULY 15, 2002, AN ELECTRICAL CONTACT PROBLEM MAY HAVE DEVELOPED IN THE HAZARD SWITCH WHICH COULD RESULT IN INOPERATIVE HAZARD LIGHTS AND/O
THE LOSS OF TURN SIGNALS OR REAR HAZARD LAMPS COULD FAIL TO WARN A FOLLOWING DRIVER THAT THE VEHICLE
DEALERS WILL REPLACE THE HAZARD SWITCH. OWNER NOTIFICATION BEGAN SEPTEMBER 6, 2002. OWNERS WHO T
VEHICLE DESCRIPTION: PASSENGER VEHICLES. MANUFACTURING CHANGES WERE MADE TO THE ORVR SPRING FORCE AND FLOAT WIRE LENGTH REDUCING THE VALVE ANGLE. CERTAIN VALVES CAUSED FUEL SHUT OFF BEFORE THE TANK
THIS WOULD CAUSE CUSTOMERS TO ADD MORE FUEL TO THE TANK CAUSING FUEL SPILLBACK OR SPITBACK FROM THE
DEALERS WILL REPLACE THE ORVR VALVE. OWNER NOTIFICATION BEGAN NOVEMBER 13, 2000. OWNERS WHO TAKE T
ON CERTAIN PASSENGER VEHICLES, THE SAFETY BELT BUCKLE MAY "FALSE LATCH" AND EXPOSE THE DRIVER TO UNRESTRAINED MOVEMENT DURING A CRASH.
IN THE EVENT OF A CRASH, THE SEAT OCCUPANT MAY NOT BE PROPERLY RESTRAINED, INCREASING THE RISK OF PE
OWNER NOTIFICATION BEGAN DECEMBER 20, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALE
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE ELECTRICAL CIRCUIT FOR THE FUEL PUMP IS GROUNDED AT JUNCTION CONNECTOR G300. IF THE PIN TENSION IS POOR, OR THE BOLT SECURING THE CONNECTOR TO THE VEHICL
THIS CONDITION COULD CAUSE THE ENGINE TO STALL, INCREASING THE RISK OF A CRASH.
THIS CORRECTIVE ACTION IS BEING PERFORMED IN CONJUNCTION WITH RECALL NO. 99V317.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. ELECTRICAL CURRENT TO THE FUEL PUMP PASSES THROUGH THE C304 AND C305 CONNECTORS. IF EXPOSED TO MOISTURE, THESE CONNECTORS COULD CORRODE. OVER TIME, THE FU
THIS CONDITION COULD CAUSE THE ENGINE TO STALL, INCREASING THE RISK OF A CRASH.
DEALERS WILL REPLACE THE EXISTING CONNECTORS AND REPOSITION THOSE CONNECTORS TO AN AREA WHERE THE PL
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE BALL SOCKET ON THE WINDSHIELD WIPER LINK MAY BE OUT OF TOLERANCE RESULTING IN THE LINK DISENGAGING FROM THE WIPER MOTOR DRIVE UNDER LOAD, SUCH AS PUSHING
THIS CONDITION COULD CAUSE IMPAIRMENT OF VISIBILITY IN INCLEMENT WEATHER INCREASING THE RISK OF A CR
DEALERS WILL REPLACE THE WINDSHIELD WIPER LINK AND ALSO PROPERLY TIGHTEN THE WIPER ARM RETAINING NUT
TECHNICAL SERVICE BULLETIN: INFORMATION FOR HEADLAMP CONDENSATION AND MOISTURE - This bulletin has been revised to include additional information. New/revised sections of this bulletin are indicated by a black bar in the margin area. This b
TSB: MANDATORY REPLACEMENT OF LOCKING/SECURITY HARDWARE - By design, certain fasteners, which are designed to lock into place once fully attached, are utilized in various Kia models and are strictly intended for ?one time use.? Some example
TSB: MANDATORY REPLACEMENT OF LOCKING/SECURITY HARDWARE - By design, certain fasteners utilized in various Kia models are strictly intended for ?one time use?. Though not limited to the following, some examples are: axle shaft nuts with sta
TSB: AUTOMATIC TRANSMISSION FLUID APPLICATION GUIDE - THIS BULLETIN PROVIDES INFORMATION RELATING TO THE CORRECT AUTOMATIC TRANSMISSION FLUIDS THAT ARE REQUIRED FOR EACH KIA MODEL. REFER TO THE SHOP MANUAL ON KGIS FOR THE SPECIFIC KIA MODEL
KIA: ALL MODELS. ARTICLE PROVIDES INFORMATION RELATING TO THE IMPROVED DURABILITY OF BULB LIFE FOR REAR COMBINATION BULB; REAR STOP LAMP/TAIL LAMP BULB UTILIZED ON MULTIPLE KIA MODELS. *PE
CHARGING SYSTEM UPGRADE. *TT
BATTERY CABLE CHAFING INSPECTION, REPAIR AND REPLACEMENT. REVISED TECHNICAL SERVICE BULLETIN. *TT
BATTERY CABLE CHAFING INSPECTION, REPAIR AND REPLACEMENT. TECHNICAL SERVICE BULLETIN, LETTERS TO SERVICE MANAGERS AND DEALERS AND OWNERS. *TT
Showing the 8 most recent of 18 technical service bulletins on file with NHTSA.
WHILE DRIVING WIRES UNDERHOOD CAUGHT ON FIRE. DEALER HAS BEEN NOTIFIED. PLEASE PROVIDE FURTHER DETAILS. *AK
BRAKES FAILED CAUSING ACCIDENT, THEY HAVE BEEN REPLACED 4 TIMES ALSO ROTORS FUEL PUMP, TRANSMISSION, GLOVEBOX,WIRING HARNESS, MANY OTHER THINGS TOO... COULD HAVE LOST MY 2 OF MY GRANDSONS IN THE A
BRAKES FAILED CAUSING ACCIDENT, THEY HAVE BEEN REPLACED 4 TIMES ALSO ROTORS FUEL PUMP, TRANSMISSION, GLOVEBOX,WIRING HARNESS, MANY OTHER THINGS TOO... COULD HAVE LOST MY 2 OF MY GRANDSONS IN THE A
BRAKES FAILED CAUSING ACCIDENT, THEY HAVE BEEN REPLACED 4 TIMES ALSO ROTORS FUEL PUMP, TRANSMISSION, GLOVEBOX,WIRING HARNESS, MANY OTHER THINGS TOO... COULD HAVE LOST MY 2 OF MY GRANDSONS IN THE A
BRAKES FAILED CAUSING ACCIDENT, THEY HAVE BEEN REPLACED 4 TIMES ALSO ROTORS FUEL PUMP, TRANSMISSION, GLOVEBOX,WIRING HARNESS, MANY OTHER THINGS TOO... COULD HAVE LOST MY 2 OF MY GRANDSONS IN THE A
Showing the 5 most serious of 994 complaints filed with NHTSA.
