1990 Pontiac Bonneville Service and Repair Manual

This factory service and repair manual for the 1990 Pontiac Bonneville covers a car offered with one engine, one body style and three trims. The engine is a 3.8L overhead-valve V6, naturally aspirated and gasoline-fueled; the body is a 4-door sedan; the trims are LE, SE and SSE. Procedures, torque values and diagnostics cover the engine, fuel, ignition, cooling, transmission, brakes, suspension, steering and electrical system.

Engines covered

• 3.8L V6 (231 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• LE
• SE
• SSE

Known issues on the 1990 Bonneville. Brake complaints lead the 39 logged against the 1990 Bonneville: 17 involve the hydraulic service brakes, with seat belts next at 6 and the electrical system, latches, locks and linkages, and seats at 3 apiece. Crashes appear in 4 of those complaints, injuries in 2 and a fire in 1. The manual gives procedures, specifications and torque values for the brake hydraulics, plus wiring diagrams and diagnostics for the electrical system and body.