Is a Honda 2.4 L 4‑cylinder good?

Yes—Honda’s 2.4‑liter inline‑four (the K24 family) is widely regarded as a strong, durable, and low‑drama engine with solid performance and reasonable fuel economy, provided it’s maintained properly and model‑specific issues are addressed. It powered many Accords, CR‑Vs, Elements, Acura TSXs, Civic Sis, and later “Earth Dreams” models into the early 2020s, earning a reputation for 200,000+ miles of service with routine care.

What engine are we talking about?

Honda’s 2.4‑liter four is best known as the K24, introduced in the early 2000s and produced in multiple variants. Earlier port‑injected versions (K24A/K24Z) appeared in models like the 2003–2012 Accord, 2002–2014 CR‑V, Element, and 2004–2014 Acura TSX, as well as the 2012–2015 Civic Si. The later direct‑injected K24W (“Earth Dreams”) arrived in the 2013–2017 Accord 2.4, 2015–2016 CR‑V, and 2016–2022 Acura ILX. Output ranges from roughly 160 hp in economy tunes to just over 200 hp in performance‑oriented trims.

Overall reliability and longevity

Across generations, the K24 has one of the better reliability records among mainstream four‑cylinders. It uses a timing chain (no scheduled belt replacements), tolerates long highway miles, and typically goes past 200,000 miles when serviced on schedule with quality oil. Failures are uncommon; most issues are age‑ or maintenance‑related rather than inherent design flaws.

Notable issues to know

While the 2.4L is generally robust, a few recurring items show up across specific years and variants. The following list highlights the most common issues owners and shoppers should be aware of, along with typical symptoms and remedies.

• VTC actuator cold‑start rattle: Brief rattling at startup on many 2008–2014 era K24s due to a worn or leaky variable timing control actuator. It’s mostly an annoyance; replacement of the actuator and ensuring clean oil often resolves it.
• Oil consumption on certain years: Some 2008–2011 Accord 2.4 and 2010–2011 CR‑V engines were covered by service bulletins for excessive oil use tied to piston ring issues; many were repaired under warranty campaigns. Verify service history and monitor oil level on affected years.
• Timing chain/tensioner wear if oil changes are neglected: Rare on well‑maintained engines, but extended intervals or low oil can accelerate wear, leading to noise or timing errors. Fresh oil and attention to dashboard warnings prevent this.
• Engine mounts and minor seepage with age: High‑mileage K24s can need motor mounts and may develop small gasket or rear main seal leaks. Typically straightforward, routine repairs.
• Direct‑injection intake valve deposits (K24W): The Earth Dreams DI versions can accumulate carbon on intake valves over time (80k–120k+ miles), occasionally causing rough idle or misfires. Using quality fuel, regular oil changes, and periodic intake cleaning (e.g., walnut blasting when needed) manage the risk.
• PCV valve clogging: A stuck PCV can contribute to oil consumption or sludge formation. Replacement is inexpensive and preventative.

For most owners, these issues are manageable and not deal‑breakers. Engines with documented maintenance and any applicable TSB repairs tend to be very dependable.

Performance and fuel economy

Performance ranges from smooth and adequate in family cars (about 160–190 hp and 160–180 lb‑ft) to lively in performance trims like the Acura TSX and Civic Si (around 200–205 hp). The power delivery is linear and responsive. Fuel economy depends on vehicle and transmission: older Accords and CR‑Vs typically return mid‑20s mpg combined, while later CVT‑equipped Earth Dreams setups (e.g., 2013–2017 Accord) can approach low‑30s mpg combined under gentle driving.

Maintenance expectations and costs

The K24’s upkeep is straightforward and usually affordable. Following the maintenance minder on newer Hondas or a conservative schedule on older models will maximize longevity. Key recurring items are below.

• Engine oil and filter: Quality synthetic 0W‑20 or 5W‑20 every 5,000–7,500 miles (or per the maintenance minder). Fresh oil helps prevent VTC actuator and chain wear.
• Spark plugs: Iridium plugs typically at 100,000 miles (check model‑specific intervals).
• Valve lash inspection: Commonly recommended around 105k–110k miles on many K‑series engines; adjust if noisy or out of spec.
• Coolant and brake fluid: Coolant often 10 years/120k miles initially, then 5 years/60k; brake fluid roughly every 3 years.
• Transmission/CVT/MT fluid: 30k–60k mile service intervals are a safe rule of thumb, especially for CVTs in 2013+ Accord and 2015–2016 CR‑V.
• PCV valve: Replace around 60k–100k miles to curb consumption and keep crankcase ventilation healthy.
• Air and cabin filters: Replace routinely; for direct‑injected K24W, consider intake valve cleaning if idle quality degrades with mileage.

With no timing belt to replace and widely available parts, routine K24 maintenance is moderate in cost, and preventative service goes a long way toward trouble‑free ownership.

Buying used: what to check

If you’re evaluating a used Honda or Acura with the 2.4L, a focused inspection will help you avoid surprises. Use the following points as a practical checklist during a test drive and pre‑purchase evaluation.

• Cold start behavior: Listen for brief VTC rattle and ensure it quiets quickly; persistent noise warrants further inspection.
• Oil level and consumption: Check dipstick before and after a longer test drive; look for blue smoke, oil smell, or fouled plugs.
• Service records and TSBs: Confirm timely oil changes and whether any oil‑consumption or VTC‑actuator campaigns were performed on applicable years.
• Compression or leak‑down (high miles): Healthy numbers indicate good ring and valve sealing.
• Transmission health: On CVT models (2013–2017 Accord; 2015–2016 CR‑V), ensure smooth engagement and steady acceleration without flares or shudders.
• Diagnostics: Scan for codes and misfires; rough idle on DI engines can hint at intake valve deposits.

A clean cold start, stable oil level, and documented maintenance are strong indicators you’ve found a good K24‑powered car.

How it stacks up against newer Honda options

Compared with Honda’s newer small turbos (1.5T/2.0T) and today’s 2.0‑liter hybrid systems, the K24 trades some torque and efficiency for mechanical simplicity and a long, proven track record. The 1.5T offers stronger low‑end torque and better mpg but has had well‑publicized oil dilution complaints in certain climates and years; hybrids deliver the best efficiency and smoothness but are more complex. For buyers prioritizing straightforward ownership and proven longevity, a well‑kept K24 remains an excellent choice.

Verdict

The Honda 2.4‑liter four is a very good engine: durable, easy to live with, and capable of high mileage. Know the specific variant and year, verify maintenance and TSB history, and you can expect years of reliable service with reasonable performance and fuel economy.

Summary

Honda’s 2.4L K24 is a standout for reliability and longevity across two decades of models. Watch for VTC actuator rattle, year‑specific oil‑consumption cases, and intake valve deposits on direct‑injected versions. Routine maintenance is straightforward and affordable, and well‑maintained examples commonly exceed 200,000 miles, making the K24 a smart bet in the used market.

How long does a 2.4 L 4-cylinder engine last?

With proper oil changes and maintenance, a 2.4L TigerShark engine should last between 130,000 and 200,000 miles. However, the oil consumption issues and piston ring failures can severely limit the lifespan of these engines before they need significant repair or fail completely.

Is a 2.4 liter engine a 4 cylinder good?

A 2.4-liter engine with four cylinders can be a good choice, offering a balance of power and fuel efficiency. It’s a common engine size, and advancements in technology have made even smaller engines like the 2.4L quite powerful. Whether it’s “good” depends on individual needs and priorities, such as the type of vehicle and driving style. 
Here’s a more detailed look:
Pros:

• Fuel Efficiency: Generally, four-cylinder engines are more fuel-efficient than larger engines like V6s, due to their smaller size and fewer moving parts. 
• Power: While historically, V6 engines were known for more power, modern four-cylinder engines, especially turbocharged ones like the 2.4L, can deliver impressive power and torque, sometimes rivaling or even exceeding older V6s. 
• Cost: Four-cylinder engines are often more affordable to manufacture and purchase, making them a common choice for many vehicles. 
• Reliability: Many 2.4L four-cylinder engines have a reputation for good reliability with proper maintenance. 

Cons:

• Power Delivery: Some drivers might perceive a less smooth power delivery from a four-cylinder, especially at higher RPMs, compared to a six-cylinder. 
• Sound: Some people may prefer the sound of a larger engine, like a V6, over a four-cylinder, though this is subjective. 
• Towing/Hauling: For heavy towing or hauling, a larger engine, like a V6, might be a better choice due to its greater power and torque. 

Examples:

• The Toyota Tacoma and Lexus NX are examples of vehicles that use a 2.4L turbocharged four-cylinder engine, showcasing its versatility. 
• Some Subaru models, like the Legacy, also utilize a 2.4L turbocharged engine. 

In Conclusion:
A 2.4L four-cylinder engine can be a great option for many drivers, offering a good balance of power, fuel efficiency, and cost-effectiveness. It’s important to consider your specific needs and driving style to determine if it’s the right choice for you.

Does the Honda 2.4 L engine have a timing belt or chain?

The Honda 2.4L engine, often found in the Accord and other models, utilizes a timing chain rather than a timing belt. Timing chains are designed for longer service life than timing belts and are generally considered maintenance-free unless issues arise. 
This video demonstrates the process of replacing a timing chain kit on a Honda 2.4L engine: 1mDayco OfficialYouTube · Aug 28, 2023
Here’s a more detailed explanation:

• Timing Chain vs. Timing Belt: A timing chain, like a bicycle chain, connects the crankshaft to the camshaft(s) to synchronize their rotation, ensuring the valves open and close at the correct time relative to piston movement. Timing belts are made of rubber and require periodic replacement. 
• Longevity: Timing chains are generally more durable and are designed to last the lifetime of the engine, unlike timing belts which need replacement at specific intervals (e.g., 60,000-100,000 miles). 
• Maintenance: While timing chains are designed for long service, they can still wear out over time. Signs of a failing timing chain include unusual engine noises, performance issues, or a Check Engine light. 
• Honda 2.4L (K24) specifics: The Honda 2.4L engine, often referred to as the K24 engine, uses a timing chain, not a belt. 
• When to replace: A timing chain is typically replaced only when there are noticeable issues or signs of wear. There is no scheduled replacement interval for the timing chain in the Honda 2.4L engine. 

This video explains how to identify and address potential problems with the timing chain on a Honda engine: 1mMotorCarNutYouTube · Apr 24, 2024

How long does a Honda 2.4 L engine last?

The Honda Accord consistently ranks as one of the most dependable sedans in the U.S. With proper care, Accords often exceed 300,000 miles without major drivetrain repairs. Why it lasts: Proven engine reliability (notably the 2.4L i-VTEC and 3.5L V6)