2003 Chevy Impala Engine Specs

The 2003 Chevy Impala is a popular sedan that offers a reliable and efficient engine to power its performance. In this article, we will delve into the engine specifications of the 2003 Chevy Impala, including its configuration, oil specifications, and recommended service intervals.

Engine Configuration

The 2003 Chevy Impala comes equipped with a 3.4-liter V6 engine. This engine configuration provides a balance between power and fuel efficiency, making it suitable for both city driving and highway cruising. With six cylinders arranged in a V-shaped configuration, the engine delivers smooth and consistent power delivery.

Engine Oil Specs

To ensure optimal performance and longevity of the engine, it is crucial to use the recommended engine oil. For the 2003 Chevy Impala, the manufacturer recommends using SAE 5W-30 engine oil. This viscosity grade provides excellent lubrication and protection across a wide range of operating temperatures. It is important to note that using the correct oil grade is essential for maintaining proper engine function.

Service Intervals

Regular maintenance is key to keeping your 2003 Chevy Impala running smoothly. Here are the recommended service intervals for the engine:

1. Oil Change: It is recommended to change the engine oil and oil filter every 3,000 to 5,000 miles or every three to six months, whichever comes first. Regular oil changes help remove contaminants and ensure proper lubrication of engine components.

2. Air Filter Replacement: The engine’s air filter should be inspected every 12,000 miles or once a year. If it appears dirty or clogged, it should be replaced to maintain optimal air flow and prevent engine damage.

3. Spark Plug Replacement: Spark plugs play a vital role in the combustion process. They should be inspected every 30,000 miles or every two to three years. If they show signs of wear or are not functioning properly, they should be replaced to maintain efficient engine performance.

4. Coolant Flush: The engine coolant should be flushed and replaced every 100,000 miles or every five years, whichever comes first. This helps prevent overheating and ensures proper cooling system function.

5. Timing Belt Replacement: The timing belt should be inspected every 60,000 miles or every five to seven years. If there are signs of wear or if the manufacturer recommends replacement, it should be changed to prevent engine damage.

Detailed Engine Specifications

To provide a comprehensive overview of the 2003 Chevy Impala’s engine, here are the detailed specifications:

Engine Type V6
Displacement 3.4 liters
Configuration V6
Fuel Type Gasoline
Horsepower 180 hp
Torque 205 lb-ft
Valvetrain Overhead Valve (OHV)
Transmission 4-speed automatic

These specifications provide a glimpse into the power and performance capabilities of the 2003 Chevy Impala’s engine.

In conclusion, the 2003 Chevy Impala is equipped with a reliable and efficient 3.4-liter V6 engine. By following the recommended service intervals and using the correct engine oil, you can ensure that your Impala’s engine remains in top condition for years to come. Regular maintenance and adherence to manufacturer guidelines are essential for maximizing the performance and longevity of your vehicle.

Categories: 3.4Chevrolet

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