Toyota 2.4L I4 (2AZ-FE)

Toyota 2.4L I4 (2AZ-FE) — every model and year that used this engine (20 models, 1981–present), based on NHTSA VIN build data, with links to prices and reliability.

Camry, RAV4, Highlander, Scion tC.

2.4L · 4 cylinders · seen in 20 models, 1981–2027

By the numbers

Output range 97–278 hp (median 155 hp). Gasoline: 100%. Based on 678 decoded NHTSA VIN build sheets.

About this engine family

The Toyota AZ engine family is a straight-4 piston engine series. The AZ series uses an aluminium engine block with cast iron cylinder liners and aluminium DOHC cylinder head. The engine series features many advanced technologies including slant-squish combustion chambers, offset cylinder and crank centers, and the VVT-i continuously variable intake valve timing system. The aluminium engine measures 626 mm (24.6 in) long, 608 mm (23.9 in) wide, and 681 mm (26.8 in) tall.

In detail

The 2AZ-FE engine in the 2007-2009 Camry and 2006-2009 Rav4 may burn excessive oil and is involved in a lawsuit. Other engines are also affected. Toyota service will perform a free oil consumption test to determine if the engine is affected. To qualify, all of the following must apply: * Burning more than of oil in * Has less than * Is less than 10 years old * Is located in the U.S. There are approximately 1,715,200 vehicles covered by this Warranty Enhancement Program.

A similar campaign are also done in Japan by Toyota in 2014. The 1AZ line of engines have of displacement. The 1AZ-FE is a version. Output is at 6000 rpm with of torque at 4000 rpm for the Camry Aurion version. Rav4 and Ipsum engines were rated at at 6000 rpm and of torque at 4000 rpm. The 1AZ has a total displacement of with bore and stroke, and a compression ratio of 9.6:1. * 2002-2006 Toyota Camry (Southeast Asian/Taiwanese version) * 2006–2009 Toyota Camry (Aurion version) * 2000–2003 Toyota RAV4 * 2003-2006 Toyota RAV4 Euro * 2001–2009 Toyota Ipsum * 2004–2008 Toyota Wish (Southeast Asian/Taiwanese version) The 1AZ-FSE is a version.

Bore and stroke is , and a compression ratio of 11.0:1. Output is at 5700 rpm with of torque at 4000 rpm. The 1AZ-FSE features Toyota's D-4 direct injection system. * 2000-2003 Toyota Avensis T220 (facelift) * 2003-2008 Toyota Avensis T250 * Toyota Avensis Verso * Toyota Noah/Voxy * Toyota RAV4 * Toyota Gaia * Toyota Isis * Toyota Ipsum * Toyota Caldina * Toyota Wish * Toyota Nadia * Toyota Allion * Toyota Premio * Toyota Opa The 2AZ line of engines have of displacement.

The 2AZ-FE is a version built in Japan (Kamigo Plant and by Toyota Industries Corporation), at TMMK in the US and also built in China for select Scion xB models, and also in Australia, obtains a total displacement of with bore and stroke, with a compression ratio of 9.6:1. Output is at 5600 rpm; of torque at 4000 rpm. Later versions of the 2AZ-FE engine were upgraded with 9.8:1 compression ratio, a slightly more aggressive intake cam profile, 6500 rpm redline, and piston oil squirters.

These later versions are rated at in the Scion tC, in the RAV4, and in the Camry, Corolla XRS, Scion xB, and for the Previa/Estima/Alphard. Some Japan-made Toyota vehicles with the 2AZ-FE engine were equipped with the K112 transmission also referred to as 7-speed Super CVT-i automatic (Seven-speed Sequential Shiftmatic) from October 2005. However, these later 2AZ-FE models were the first to be rated under the new SAE J1349 standard.

The new standard usually produces more conservative numbers, though no definitive comparison is available since the two versions were never tested by the same standard. The RAV4 uses a different timing chain cover from the Camry, they can however be interchanged. A TRD supercharger was available for the Scion tC and 2nd generation xB until Spring 2009. There have been complaints of this engine "burning oil" in North America from the 2006 model year onwards, with the issue starting after , though mostly after .

Piston ring design has been identified as a potential problem. Toyota has issued a TSB (Technical service bulletin) TSB 0094-11 in August 2011 but has not issued a recall. Alternative theories point to a head gasket problem: the 2AZ-FE aluminum block threads may wear out on the back three middle bolts (closest to firewall). Check TSB SB-0015-11. There are several class-action lawsuits underway regarding this issue. In January 2015, Toyota North America issued extended warranty notification (ZE7) for this issue for Toyota North America vehicles only.

* 2002–2011 Toyota Camry in Australia.

Source: Wikipedia — Toyota AZ engine, CC BY-SA.

Models that used this engine

Model Years with this engine Fuel VIN builds seen
PICK-UP 1981–1994 Gasoline 205
CAMRY 2002–2011 Gasoline 98
TACOMA 1995–2026 Gasoline 80
RAV4 2004–2008 Gasoline 49
4RUNNER 1985–2026 Gasoline 34
PREVIA 1991–1997 Gasoline 33
HIGHLANDER 2001–2026 Gasoline 32
CELICA 1981–1985 Gasoline 29
GR86 2022–2026 Gasoline 20
SCION TC 2005–2010 Gasoline 19
CAMRY SOLARA 2002–2008 Gasoline 18
COROLLA MATRIX 2009–2013 Gasoline 17

Engine usage derived from NHTSA VIN build data (displacement + cylinder configuration). Model links lead to prices, generations and reliability.

For sale with this engine