1989 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
FUEL ROLLOVER VALVE ASSEMBLY MAY NOT HAVE BEEN INSTALLED.
IN EVENT OF AN ACCIDENT IN WHICH VEHICLE BECOMES INVERTEDMISSING VALVE COULD ALLOW FUEL SPILLAGE IN
REPLACE FUEL SENDER AND PUMP ASSEMBLY.
LEFT FRONT TIE ROD BROKE CAUSING LOSS OF CONTROL AT ABOUT 70 MPH. DURING RESULTANT CRASH, SHOULDER HARNESS FAILED TO RESTRAIN DRIVER. INJURY SUSTAINED WAS A BURST FRACTURE OF THE L-1 VERTEBRAE RESULTI
LEFT FRONT TIE ROD BROKE CAUSING LOSS OF CONTROL AT ABOUT 70 MPH. DURING RESULTANT CRASH, SHOULDER HARNESS FAILED TO RESTRAIN DRIVER. INJURY SUSTAINED WAS A BURST FRACTURE OF THE L-1 VERTEBRAE RESULTI
I HAVE HAD TWO BONNEVILLES' AN 1988' AND A 1989' AND HAVE HAD MAJOR BRAKE TROUBLES WITH BOTH VEHICLES. *AK
CRUISE CONTROL SELF ACTIVATED INTO SUDDEN ACCELERATION, CAUSING A COLLISION .
READING ABOUT THE RECENT GM RECALL FOR AUTOMOBILES STALLING OUT WHEN DRIVING, TRIGGERED MY MEMORY OF MY FORMER PONTIAC. ON AT LEAST 3 OCCASIONS, THIS PONTIAC HAD STALLED OUT IN A SIMILAR FASHION. TH
Showing the 5 most serious of 35 complaints filed with NHTSA.
