2006 Pontiac G4 Service and Repair Manual

This factory service and repair manual for the 2006 Pontiac G4 reflects a lineup of two engines, two body styles and three trims. The 2.2L inline-four (134 cu in) and the 2.4L inline-four (145 cu in) both use double overhead camshafts, natural aspiration and gasoline. The 4-door sedan and 2-door coupe come in Basico, GT and LS trims. Procedures, specifications and torque values address both engines, the transmission, the brakes and the suspension, while wiring diagrams cover the electrical system and body.

Engines covered

• 2.2L inline-four (134 cu in) — DOHC, naturally aspirated, gasoline
• 2.4L inline-four (145 cu in) — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan
• 2-door coupe

Trims covered

• Basico
• GT
• LS

Known issues on the 2006 G4. Two double-overhead-cam fours of different displacement put the engine, fuel system, ignition and cooling system at the center of service on this car. The manual supplies procedures, specifications and diagnostics for that group. Its torque values extend to the transmission, drivetrain, suspension and steering, and the body procedures and wiring diagrams address both the sedan and the coupe.