1990 Pontiac Bonneville 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
- LE Sedan 4-Door
- SSE Sedan 4-Door
- SE Sedan 4-Door
Engines covered
- 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
CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURE
THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. I
HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOB
SHIFTED FROM PARK TO DRIVE, ENGINE ACCELERATED, VEHICLE LURCHED FORWARD, ACCELERATOR WENT TO FLOOR, NO WARNING, VEHICLE HIT TREE; NOTE : REPORTED BY ALL STATE INS. CO. *AK
SUSPECT RELATED CAMPAIGN FOR ABS HYDRALIC VALVE BLOCK (INTERMITTENT PULL IS WHEEL LOCKOUT). *AK
BRAKE PEDAL BECAME FROZEN, WOULD NOT MOVE OR GO DOWN IN POSITION TO BRAKE, CAUSING A LOSS OF BRAKES, RESULTING IN AN ACCIDENT. DEALER CANNOT DETERMINE DEFECT. *AK
ABS SYSTEM FAILURE, PARTIAL LOSS OF BRAKING IN A SUDDEN STOP. TT
A VEHICLE FIRE ORIGINATED IN ALTERATOR WIRING HARNESS AFTER PULLING INTO DRIVEWAY. DEALER/MANUFACTURER WERE NOT NOTIFIED. STATE FARM INSURANCE ASKED CONSUMER TO NOTIFY NHTSA. *AK *ML
Showing the 5 most serious of 45 complaints filed with NHTSA.
