1987 Pontiac Bonneville Service and Repair Manual

This factory service and repair manual for the 1987 Pontiac Bonneville covers a car powered by a 3.8L V6, the lone engine listed: overhead valves, no forced induction, gasoline. The car is a 4-door sedan in two trims, Base and LE. Procedures, specifications and torque values address that V6 together with the fuel, ignition, cooling, transmission, brake, suspension, steering and electrical systems of the sedan.

Engines covered

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

Body styles covered

• 4-door sedan

Trims covered

• Base
• LE

Known issues on the 1987 Bonneville. The 1987 Bonneville has 3 recalls on the federal record. Friction in the accelerator cable on certain 1987 Bonneville vehicles could keep the throttle from closing, so engine speed would not drop; a new accelerator cable was the fix, and the recall covered 35,057 vehicles. On certain 1987 Bonneville vehicles, an in-line fusible link near the plastic washer bottle bracket could melt under high resistance and set the bracket alight. Certain 1987 Bonneville vehicles equipped with foglamps had a headlamp circuit breaker that could overheat on low beam and drop the headlamps and foglamps. Owners logged 19 complaints, 5 on steering; 1 reported a crash and 1 a fire. Engine and electrical procedures, wiring diagrams and diagnostics apply.