1998 Cadillac Seville Service and Repair Manual

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Factory-Grade Data

1998 Cadillac Seville 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

  • STS Sedan 4-Door
  • SLS Sedan 4-Door

Engines covered

  • 4.6L 281Cu. In. V8 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

1998 Cadillac Seville Recalls & Complaints

NHTSA #98V14400026/06/1998Component: VISIBILITY:WINDSHIELD WIPER/WASHER

VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE WINDSHIELD WIPER MOTOR 'LOW' SPEED FUNCTION CAN BECOME INOPERATIVE WHEN THE MOTOR IS SWITCHED FROM 'HIGH' TO 'LOW' SPEED.

Consequence

IF THIS WERE TO OCCUR WHILE THE VEHICLE WAS IN MOTION, THE DRIVER'S VISIBILITY COULD BE AFFECTED.

Remedy

DEALERS WILL REPLACE THE WINDSHIELD WIPER MOTOR COVER WHICH CONTAINS THE MICROPROCESSOR.

TSB #10208027

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and

TSB #10171318

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and

TSB #10248444

Vehicle Recalls

TSB #10168979

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock ce

TSB #10166638

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

TSB #10165876

This Preliminary Information communication provides information to the technician on how to unlock radios that are Delco TheftLock. Technician will use the radio to get the scrambled code. Technician will need to contact the radio unlock ce

TSB #10157018

This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and

TSB #10154641

This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

Showing the 8 most recent of 94 technical service bulletins on file with NHTSA.

20090603Component: SUSPENSION:REARCrash reported1 injured

I HAVE A 1998 CADILLAC SEVILLE SLS AND WAS GOING THROUGH LEFT CURVE ON ROAD 40-45 MPH RIGHT REAR AXLE BROKE, CAUSING CAR TO SPIN LEFT THEN RIGHT. PARALLEL TO ROAD ON THE RIGHT AND CRASHING INTO A BIG

20040614Component: AIR BAGS:FRONTALCrash reported1 injured

WHILE CONSUMER'S VEHICLE STOPPED AT A TRAFFIC LIGHT IT WAS REAR ENDED BY ANOTHER VEHICLE, CAUSING CONSUMER'S VEHICLE TO REAR END THE VEHICLE IN FRONT. UPON IMPACT, BOTH FRONTAL AIR BAGS DID NOT DEPLOY

20040614Component: SEAT BELTS:FRONTCrash reported1 injured

WHILE CONSUMER'S VEHICLE STOPPED AT A TRAFFIC LIGHT IT WAS REAR ENDED BY ANOTHER VEHICLE, CAUSING CONSUMER'S VEHICLE TO REAR END THE VEHICLE IN FRONT. UPON IMPACT, BOTH FRONTAL AIR BAGS DID NOT DEPLOY

20120330Component: STEERINGCrash reported

TL* THE CONTACT OWNS A 1998 CADILLAC SEVILLE. WHILE DRIVING APPROXIMATELY 30 MPH, THE CONTACT HEARD A LOUD WHINING NOISE COMING FROM THE STEERING WHEEL. THE STEERING WHEEL BECAME DIFFICULT TO MANEUVER

20030728Component: ENGINE AND ENGINE COOLING:ENGINEFire reported1 injured

THE CONSUMER HAD DIFFICULTY SHIFTING THE GEARS WHEN A PASSER BY INFORMED HIM TO EXIT THE VEHICLE BECAUSE IT WAS ON FIRE. THE FIRE IN THE ENGINE COMPARTMENT TOTALED THE VEHICLE. *NLM. *AK *CB *

Showing the 5 most serious of 78 complaints filed with NHTSA.

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