2005 Pontiac Bonneville Service and Repair Manual

This factory service and repair manual for the 2005 Pontiac Bonneville deals with a four-door sedan whose gasoline engines take two routes to power. The V8 displaces 4.6 liters and uses double overhead camshafts; the V6 is a 3.8-liter overhead-valve design. Neither relies on forced induction. Trims number three, listed as GXP, SE and SLE. Expect engine, fuel, ignition, cooling, transmission, brake, steering, suspension, electrical and body coverage, set out as procedures, specifications, torque values, wiring diagrams and diagnostics.

Engines covered

• 3.8L V6 (231 cu in) — OHV, naturally aspirated, gasoline
• 4.6L V8 (281 cu in) — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• GXP
• SE
• SLE

Known issues on the 2005 Bonneville. Air bags top the 27 owner complaints on record for this year, with 12, ahead of the electrical system at 8, steering at 5, the engine at 4 and the power train at 2. Of those complaints, 2 reported a crash, 2 reported an injury and 1 reported a fire. For the air bag and electrical systems these complaints point to, the manual supplies wiring diagrams, diagnostics and service procedures, and its steering specifications and torque values cover the next most common concern.