The 2004 Pontiac Grand Am came with two engine options: a 2.2L Ecotec 4-cylinder and a 3.4L V6. The 3.4L V6 engine produces 170 horsepower and 200 lb-ft of torque, featuring an aluminum block with iron cylinder liners and aluminum heads. This engine uses a timing chain rather than a belt, reducing maintenance requirements. It’s paired with either a 5-speed manual or 4-speed automatic transmission. The 3.4L was available in SE and GT trim levels and provided adequate power for highway driving while maintaining reasonable fuel economy of approximately 20 city/29 highway mpg.

The 2004 Pontiac Grand Am shares most parts with the 1999-2005 generation, which represents the fifth and final generation of the Grand Am. Engine components from the 3.4L V6 are largely interchangeable across these years, though some sensors and wiring may vary. Body panels, interior components, and suspension parts are generally compatible within this generation. Some parts also interchange with other GM vehicles using the N-body platform, including the Oldsmobile Alero (1999-2004) and certain Chevrolet Malibu components. Always verify part numbers and specifications, as mid-year changes and trim level differences can affect compatibility.

Parts availability changes daily. Call us at (603) 392-7313 or visit our online shop to check current inventory from this specific vehicle. If we have sold a part you need, our Parts Broker service can source it from our network of partner yards nationwide.

Yes! We ship parts from this vehicle and our entire inventory nationwide. Most orders ship within 1-2 business days via FedEx or freight carriers for larger components like engines and transmissions. Call (603) 392-7313 for a shipping quote on any part.

The 3.4L V6 in the Grand Am is moderately reliable but has some well-documented issues. The most significant concern is intake manifold gasket failure, which affects most of these engines eventually. When properly maintained with regular coolant changes and intake gasket replacement when needed, these engines can reach 200,000+ miles. The timing chain is durable and rarely needs replacement. Regular oil changes every 3,000-5,000 miles are crucial, and monitoring coolant levels helps catch gasket issues early. Despite the gasket problem, many owners appreciate the engine’s smooth operation and adequate power delivery.