1998 Buick Regal 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
- 25th Anniversary Edition Sedan 4-Door
- GS Sedan 4-Door
- LS Sedan 4-Door
Engines covered
- 3.8L 3800CC 231Cu. In. V6 GAS OHV Supercharged
- 3.8L 3800CC 231Cu. In. V6 GAS OHV 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
General Motors LLC (GM) is recalling certain model year 1998-1999 Chevrolet Lumina and Oldsmobile Intrigue, 1997-2004 Buick Regal and Pontiac Grand Prix, 2000-2004 Chevrolet Impala, and 1998-2004 Chev
Engine oil that drips onto the hot surface of the exhaust manifold may result in a fire.
The remedy applied under recalls 08V-118, 09V-116, and 15V-201 did not adequately remove the safety
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THESE VEHICLES DO NOT CONFORM TO THE REQUIREMENTS OF FMVSS NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THE VERTICAL HEAD LAMP ADJUSTING
DRIVER VISIBILITY MAY BE IMPAIRED INCREASING THE RISK OF A CRASH.
OWNERS WILL BE PROVIDED WITH AN OWNER'S MANUAL INSERT CONTAINING INSTRUCTIONS FOR OPTICALLY AIMING T
DORMAN IS RECALLING 979 STEERING KNUCKLES, DORMAN P/NOS. 697-902 AND 697-903, SOLD UNDER DORMAN'S "OE SOLUTIONSTM" BRAND NAME, AND NAPA P/NOS. 7-8502 AND 7-8503 WHICH WERE SOLD FOR REPLACEM
A BROKEN STEERING KNUCKLE COULD RESULT IN LOSS OF STEERING CONTROL AND A POSSIBLE CRASH WITHOUT WARN
DORMAN WILL NOTIFY OWNERS AND REPLACE THE DEFECTIVE STEERING KNUCKLES FREE OF CHARGE AND REIMBURSE T
VEHICLE DESCRIPTION: PASSENGER VEHICLES. THE OWNER MANUALS DO NOT CONTAIN THE REQUIREMENT INFORMATION PERTAINING TO THE VEHICLE HEADLAMP AIMING DEVICE. THIS DOES NOT COMPLY WITH REQUIREMENTS OF FMV
IF THE HEADLAMP ASSEMBLIES ARE REPLACED, CUSTOMERS MAY NOT BE ABLE TO PROPERLY AIM THE HEADLIGHTS.
OWNERS WILL BE MAILED AN OWNER MANUAL'S INSERT WHICH CONTAINS THE APPROPRIATE INFORMATION.
CERTAIN PASSENGER VEHICLES HAVE LOWER PINION BEARINGS IN THE POWER RACK AND PINION ASSEMBLY IN WHICH THE RETAINER TABS WERE NOT CRIMPED PROPERLY. THESE RETAINERS COULD FAIL AND PERMIT THE BALL BEARI
IF THIS OCCURS, THE PINION SHAFT CAN BE FORCED UPWARD DURING LEFT TURNS AND BACK DOWN AS THE STEERIN
DEALERS WILL INSTALL A NEW LOWER PINION BEARING UNLESS INSPECT OF THE EXISTING BEARING INDICATES THA
GENERAL MOTORS IS RECALLING 1,497,516 MY 1997-2003 BUICK REGAL, MY 1998-2003 CHEVROLET LUMINA, MONTE CARLO AND IMPALA, MY 1998-1999 OLDSMOBILE INTRIGUE, MY 1997-2003 PONTIAC GRAND PRIX VEHICLES EQUIPP
IF THE MANIFOLD IS HOT ENOUGH AND THE OIL RUNS BELOW THE HEAT SHIELD, IT MAY IGNITE INTO A SMALL FLA
DEALERS WILL REPLACE THE ENGINES FRONT VALVE COVER AND FRONT-VALVE-COVER GASKET WITH NEW PARTS OF A
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
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
This informational bulletin provides information for dealers/technicians on Procedures to Unlock Delco Radio with Theftlock.
Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
L67 ENGINE OIL SMELL OR ODOR, LEAK AT LEFT OR FRONT VALVE COVER (REPLACE VALVE COVER GASKET, GROMMENTS AND SPARK PLUG WIRE RETAINERS FOR CYLINDERS 1-3-5). *NJ UPDATED 7/25/2008 *PE
ABS PUMP RUNNING WHEN NOT NEEDED. *NJ
TIE ROD SPECIFICATIONS REVISED. GM TECH LINK. *TT
INTERMITTENT CHUGGLE OR FISHBITE ON LIGHT ACCELERATION OR A HIGHWAY SPEEDS WITH NO DIAGNOSTIC TROUBLE CODES (DTCS). *TT
Showing the 8 most recent of 73 technical service bulletins on file with NHTSA.
TL* THE CONTACT OWNS A 1998 BUICK REGAL. WHILE DRIVING 15 MPH, ANOTHER VEHICLE CRASHED INTO THE CONTACT'S VEHICLE. THE CONTACT SUSTAINED NECK INJURIES THAT REQUIRED MEDICAL ATTENTION. THE FRONT PASSEN
TL* THE CONTACT OWNS A 1998 BUICK REGAL. WHILE DRIVING 15 MPH, ANOTHER VEHICLE CRASHED INTO THE CONTACT'S VEHICLE. THE CONTACT SUSTAINED NECK INJURIES THAT REQUIRED MEDICAL ATTENTION. THE FRONT PASSEN
I T- BONED A CAR. WHEN MY FRONT END HIT IT THE AIRBAGS WERE SET OFF. THE PASSENGER SIDE AIRBAG HAD WAY TOO MUCH CHARGE IN IT OCCURRING TO THE INSURANCE ADJUSTER. WHEN IT WENT OFF IT EXPLODED SO HARD A
MY CAR IS CURRENTLY EXHIBITING THE EXACT SAME FAILURES THAT ARE ALREADY LISTED ON NHTSA FOR MY MAKE, MODEL & YEAR. HOWEVER, THEY SAY MY VIN# IS NOT INCLUDED IN THIS RECALL.....EVEN THOUGH I AM EXPERIE
WHILE TRAVELING AT 20 MPH CONSUMER'S VEHICLE WAS HIT HEAD ON BY ANOTHER VEHICLE. UPON IMPACT, NONE OF THE AIRBAGS DEPLOYED. *AK
Showing the 5 most serious of 376 complaints filed with NHTSA.
