1989 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
- Custom Coupe 2-Door
- Limited Coupe 2-Door
- Gran Sport Coupe 2-Door
Engines covered
- 2.8L 173Cu. In. V6 GAS OHV Naturally Aspirated
- 3.1L 189Cu. 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
FUEL RETURN LINES COULD FRACTURE AND ALLOW FUEL TO LEAK IN THE AREA OF THE FUEL TANK.
IN PRESENCE OF AN IGNITION SOURCE, THIS CONDITION COULDRESULT IN A FIRE.
INSTALL NEW FUEL RETURN PIPE ASSEMBLY.
CRACKS DEVELOP IN THE WHEEL MOUNTING SURFACE. IF THESE CRACKS BECOME SEVERE ENOUGH, THE WHEEL WILL COMPLETELY SEPARATE FROM THE VEHICLE.
IF WHEEL SEPARATION OCCURS WHILE THE VEHICLE IS IN MOTION, LOSS OF STEERING AND BRAKE CONTROL OF THE
DEALERS WILL INSPECT THE MANUFACTURING DATE CODES STAMPED ON EACH WHEEL OF THE VEHICLE AND IF A WHEE
CUSTOMERS MAY COMPLAIN OF GRINDING / SCRAPING / GROANING NOISE FROM REAR SUSPENSION. *TT
ABS WARNING LIGHT IS ON. *TW
REAR STRUT RELATED THUMPING/SQUEAKING NOISE. *TW
ABS WIRE HARNESS FOR THE RIGHT FRONT WHEEL MAY RUB ON THE BRAKE LINE CAUSING THE ABS WARNING LIGHT TO COME ON. *TW
2 OCCURRENCES OF SUDDEN ACCELERATION. FIRST REPORTED TO GM DEALER 2/13/92. DEALER STATED DEFECTIVE ECM AND REPLACED ECM. NO PROBLEMS TILL RECENTLY. WHEN SHIFTING FROM PARK TO REVERSE CAR ACCELERA
2 OCCURRENCES OF SUDDEN ACCELERATION. FIRST REPORTED TO GM DEALER 2/13/92. DEALER STATED DEFECTIVE ECM AND REPLACED ECM. NO PROBLEMS TILL RECENTLY. WHEN SHIFTING FROM PARK TO REVERSE CAR ACCELERA
REAR CALIPERS FROZE TWICE, CAUSING BRAKE FLUID TO BOIL DUE TO FRICTION AND MASTER CYLINDER TO FAIL, RESULTING IN LOSS OF CONTROL/ONE ACCIDENT/INJURY. *SKD
WHILE DRIVING ENGINE LOST POWER CAUSING A CRASH. CAUSE UNKNOWN. DEALER NOTIFIED.*AK
THE CONSUMER WAS INVOLVED IN AN ACCIDENT. NO OTHER INFORMATION WAS GIVEN.
Showing the 5 most serious of 150 complaints filed with NHTSA.
