2AZ-FE 2.4L Engine – Specs, Applications & FAQs
The 2AZ-FE 2.4L engine is one of Toyota’s most widely used inline-four engines, designed for mid-sized sedans, SUVs, and light-duty vehicles. Introduced in 2000 as part of the AZ engine family, the 2AZ-FE became popular for its balance of performance, efficiency, and reliability. It was commonly found in Toyota and Lexus models throughout the 2000s and early 2010s.
This article provides detailed engine specifications, vehicle applications, and answers to the most frequently asked questions (FAQs) about the Toyota 2AZ-FE engine.
2AZ-FE 2.4L Engine
2AZ-FE 2.4L Engine Specifications
| Feature | Specification |
|---|---|
| Engine Code | 2AZ-FE |
| Engine Type | Inline-4, DOHC, 16-valve |
| Displacement | 2.4 liters (2,362 cc) |
| Bore x Stroke | 88.5 mm × 96.0 mm |
| Compression Ratio | 9.6:1 – 9.8:1 (varies by model/year) |
| Block Material | Aluminum with cast iron liners |
| Cylinder Head | Aluminum |
| Fuel System | Sequential Multi-Point Fuel Injection (EFI) |
| Valvetrain | DOHC with VVT-i (Variable Valve Timing – intake side) |
| Horsepower | 157 – 177 hp (depending on year & application) |
| Torque | 162 – 170 lb-ft |
| Firing Order | 1-3-4-2 |
| Timing System | Timing chain (no timing belt) |
| Fuel Type | Regular unleaded gasoline |
| Oil Capacity | 4.5 liters (with filter) |
| Cooling | Water-cooled |
| Emission Standard | ULEV (Ultra-Low Emission Vehicle) in most markets |
| Lifespan (average) | 200,000+ miles with proper maintenance |
2AZ-FE 2.4L Engine
Vehicle Applications of the 2AZ-FE Engine
The 2AZ-FE was used widely in Toyota, Scion, and Lexus models. Below is a list of vehicles equipped with this engine:
Toyota
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Toyota Camry (2002–2011)
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Toyota RAV4 (2001–2008)
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Toyota Highlander (2001–2007)
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Toyota Solara (2002–2008)
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Toyota Matrix (2009–2011, select trims)
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Toyota Alphard (2002–2008)
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Toyota Harrier (Japanese market)
Lexus
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Lexus ES 240 (China/Asia market)
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Lexus ES 250 (select trims, depending on region)
Scion
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Scion tC (2005–2010)
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Scion xB (2008–2015)
Others
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Pontiac Vibe GT (2009–2010) – joint Toyota/GM venture
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Various Toyota vehicles in Asian & Middle Eastern markets
Common Features and Strengths
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Durability: With proper oil changes, it easily surpasses 200,000 miles.
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Timing Chain: Eliminates the need for costly belt replacements.
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Fuel Efficiency: Balances decent power with economy for mid-sized sedans/SUVs.
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Parts Availability: Widely available due to global use.
2AZ-FE 2.4L Engine
Known Issues with the 2AZ-FE Engine
Despite its reliability, some common problems include:
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Excessive Oil Consumption – Notable in early models (2006–2008 Camry & RAV4). Toyota later issued service bulletins and piston ring updates.
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Head Bolt Thread Failure – Overheating could cause head bolts to strip from the aluminum block. Repair often requires a thread insert kit (Timesert).
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Idle & Vibration Issues – Common as mounts wear out over time.
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VVT-i Oil Control Valve Problems – Can lead to rough running if clogged.
❓ Frequently Asked Questions (FAQs)
1. Is the 2AZ-FE a reliable engine?
Yes, the 2AZ-FE is known for reliability when maintained properly. Many vehicles exceed 200,000–250,000 miles. However, oil consumption issues should be monitored.
2. Does the 2AZ-FE have a timing belt or chain?
It uses a timing chain, which typically lasts the lifetime of the engine and does not require scheduled replacement.
3. What is the recommended oil type?
Toyota recommends SAE 5W-30 (conventional or synthetic). Many owners prefer full synthetic for longevity.
4. How much horsepower does the 2AZ-FE produce?
It produces between 157–177 horsepower depending on the model year and vehicle application.
5. Can the 2AZ-FE handle turbocharging?
While possible, the engine was not designed for forced induction. Internal components are not forged, so significant modifications would be required for safe turbo use.
6. What vehicles share the 2AZ-FE engine?
It was used across multiple Toyota, Lexus, and Scion models (Camry, RAV4, Highlander, Solara, tC, xB, etc.), making it one of Toyota’s most widespread engines.
7. What is the average cost of a replacement 2AZ-FE engine?
Prices vary but typically range between $1,200 – $2,800 for a used or remanufactured unit, depending on mileage and condition.
The Toyota 2AZ-FE 2.4L engine is a dependable and widely used powerplant that served as the backbone of many Toyota and Lexus models for over a decade. Known for its balance of power, fuel economy, and longevity, it remains a popular choice for vehicle owners and engine swaps.
While some issues like oil consumption and head bolt failures exist, with proper maintenance, the 2AZ-FE continues to be a trusted and durable engine even years after its production peak.