How long will a 2004 Chevy Impala last?

A well-maintained 2004 Impala can push past 200,000 miles, and many reach 250,000 to 300,000 miles with proper care.

The 2004 model is now two decades old, so its ultimate lifespan depends on how well it was maintained, typical driving conditions, and how many miles it has already clocked. This article outlines what to expect, how to extend life, and what to look for when buying one today.

Factors that influence how long a 2004 Impala will last

Several conditions determine the long-term reliability of this aging sedan. Here are the most influential factors to consider.

• Maintenance history and care: Regular oil changes, fluid flushes, timely replacement of wear items (belts, hoses, brakes) substantially affect engine life and overall reliability.


• Engine and drivetrain design: The Impala of this era uses relatively durable V6 engines and a timing chain rather than a belt; with proper upkeep, these components can endure many miles.


• Driving conditions: Highway cruising with light loads tends to wear parts more slowly than frequent short trips, heavy towing, or aggressive driving.


• Climate and corrosion: Road salt, humidity, and coastal exposure can accelerate rust and undercarriage wear unless addressed with preventive care.


• Past accidents and repair quality: Structural damage or subpar repairs can shorten usable life even if the car runs smoothly today.

In short, a well-kept example has a better chance of lasting into the high-mileage range, while neglectful maintenance typically shortens its lifespan.

Maintenance milestones to maximize longevity

A disciplined maintenance plan is the most reliable way to extend life for a 2004 Impala. The following checklist reflects common guidance for older GM vehicles.

• Oil and filter changes: Every 3,000–5,000 miles with conventional oil, or 5,000–7,500 miles with synthetic oil, depending on usage and climate.


• Coolant system care: Coolant flushes and hose checks every 5 years or 100,000 miles, with thermostat and radiator hoses replaced as needed.


• Transmission care: Follow the owner’s manual for transmission fluid checks and changes; using the correct fluid and maintaining proper level helps transmission longevity.


• Spark plugs and ignition: Replace spark plugs around 100,000 miles, and inspect ignition components for signs of wear.


• Brake and suspension maintenance: Regular brake inspections, pad/rotor replacements as needed, and front-end/suspension checks prevent excessive wear and unsafe driving conditions.


• Engine seals and hoses: Check for leaks and replace deteriorating hoses, especially in the cooling and vacuum systems.

Adhering to these milestones won't guarantee a fixed mileage, but it markedly reduces the risk of unexpected failures and keeps the car safer and more reliable longer.

Buying a 2004 Impala today: what to look for

Key mechanical indicators to assess

When evaluating a used 2004 Impala, focus on the engine, transmission, and cooling systems. A thorough inspection can reveal issues that may limit remaining life or increase ownership costs.

• Engine compression and oil consumption: Look for even compression across cylinders and reasonable oil usage. Excessive oil consumption or noisy valvetrain can signal impending repairs.


• Transmission behavior: Check for smooth shifting and absence of slipping or unusual noises. Harsh or delayed shifts can indicate transmission wear.


• Cooling system integrity: Look for coolant leaks, overheating history, and condition of hoses and radiator. A sound cooling system is essential to engine longevity.

Also verify body and frame condition for rust, test electrical systems, and review service records to gauge overall maintenance quality.

Red flags that merit caution or price adjustment

Be mindful of signs that the Impala may require expensive repairs soon. Here are common issues that can affect value or risk.

• Chronic oil leaks or front-end oil leaks around gaskets and seals.


• Suspension or steering components showing excessive play or wear.


• Rust around the underbody, rockers, and wheel wells, particularly in areas with heavy road salt use.


• Transmission or cooling system problems that have not been addressed, leading to repeated repairs.

Always insist on a trusted pre-purchase inspection (PPI) and consider the total cost of ownership beyond the asking price, including potential future repairs.

Summary

A 2004 Chevy Impala can endure many miles if it has been properly cared for, with 200,000 miles and beyond being realistic targets. Longevity depends on how well maintenance was kept up, the driving conditions it endured, and the quality of repairs over the years. For buyers, a detailed inspection and complete service history are essential to estimate remaining life and expected costs. With proactive care and realistic expectations, a well-preserved 2004 Impala can still be a dependable daily driver.

What year to stay away from Chevy Impala?

Years to avoid for the Chevy Impala include 2000–2008, especially the early 2000s, due to widespread transmission and engine issues, such as oil leaks and faulty head gaskets. Other problematic years are 2014–2015, which had multiple recalls for faulty brakes, airbags, and power steering. Additionally, the 2001 model year was particularly bad due to significant transmission and intake manifold problems. 
Problematic model years

• 2000–2008: This period is widely considered to have the most significant issues, especially with the 3.4L V6 engine and automatic transmissions. 
  • 2001: Had over 1,000 complaints and 10 recalls, with major problems in the transmission and intake manifold gasket. 
  • 2004–2008: Known for mechanical issues and transmission problems like stuttering and jerking. 
• 2014–2015: These years were marked by numerous recalls, including issues with parking brakes, airbags, and the power steering control module. 

Common problems by year

Model Year	Common Problems
2000–2005	Excessive oil consumption, faulty head gaskets, transmission issues (e.g., faulty solenoids), and intake manifold leaks.
2006–2013	Excessive oil consumption and engine problems are common. Some models experience issues with power steering control modules, and others suffer from a crumbling wiring loom.
2014–2015	Parking brake failures, malfunctioning airbags, and problems with the power steering control module.
2018–2019	Single recall for poor rear brake performance.

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Other considerations

• 2009–2020: These are generally good model years, with some owners reporting good reliability and low ownership costs, especially for the 2015 model. 
• 2006–2011: Some models from these years may have issues with door locks, blend door actuators, and oil leaks. 

Can a Chevy Impala last 300,000 miles?

Pretty good for a 3.6. You commonly see 300k out of the 3.8 and 3.5 versions of these but the 3.6 post 2012 can be a 300k engine with oil change maintenance as proven by you. oil changes are the key to keep the 3.6 chains in good shape.

How many miles can a 2004 Impala last?

The vehicle offers a spacious interior, smooth ride, and powerful engine performance, especially the 3.8L V6 model. Owners report exceptional durability and dependability, with many driving over 200,000 miles with minimal issues.

What common problems did the 2004 Impala have?

Top 2004 Chevrolet Impala Problems

• Transmission Pressure Control Solenoid Failure May Cause Erratic Shifting.
• Ignition Key Stuck Due to Failed Shifter.
• jolting while driving.
• Check Engine Light Due to Gas Cap Issue.
• Speedometer or Other Instrument Panel Gauge May Work Erratically.