Owners of 2009-14 Subaru Impreza WRX and WRX STI models have launched a class-action lawsuit, alleging the pistons and PCV (positive crankcase ventilation) systems in the high-performance 2.5-L turbocharged engines may overheat or malfunction, requiring a king's ransom in . Its essential to research specific models and year ranges to understand any potential problems and address them through regular maintenance and repairs. Subaru is often the go-to vehicle for outdoor enthusiasts, with the Outback and Forester known to be solid options for a range of weather and road conditions. Subaru 2.5-L Turbo 4 Cylinder This engine was engineered in the 2009-14 Subaru Impreza WRX and WRX STI models. Besides, the air-conditioned intercooler seems hit-and-miss since it can not cool down the engine core during operation, especially in high-load performance. According to the NHTSA, the Forester received one recall and just over 100 complaints on average per model year. The 10 Best Rated Used SUV With Third Row Seating, 2024 Toyota Grand Highlander: The Ultimate SUV with Unmatched Interior Space, 615 Badass Jeep Gladiator Names: Find Unique Jeep Names and Find Nicknames with These Creative Jeep Name Ideas. I have had great pleasure driving my car until she started giving problems. CR says the 2001-2009 Subaru Forester, 2001-2009 Subaru Outback, 2006-2008 Subaru Impreza, and the 2006 Subaru Baja are more likely to need the head gaskets replaced than other models.7 thg 7, 2020 The Impreza WRX and WRX STI drivers said their vehicles suddenly lose power. There are often oil leaks in EJ25 engines, coming from the malfunctioning camshafts and loose cylinder headcovers. The Subaru engines to avoid are the 2.5-liter turbo 4-cylinder, EJ25 Boxer, and EJ205/EJ207/EJ20G series. Copyright 2023 YourGreatCar.com | Powered by Astra WordPress Theme. EJ18, EJ20 and EJ22 versions. Subaru tried to comfort the users by its explanation about more premium oil and fuel quality. Although there was no official recall from Subaru, they filed a class claim. That could be a sign of failure, and its time to replace the fuel pump. The computer part was initially programmed with no finesse and precision. 5-L efficient charging engines could be hot or inefficient, which requires, The Subaru EJ25 was one of their vehicles most commonly used Subaru engines and came in two forms. According to common complaints, drivers noticed that the contact points between the piston ring and the ground had weakened significantly in this engine system. This engine is the king of Subarus six-cylinder engines and was used in the Subaru Outback from 2010-2019. Engines you should avoid if you are buying a Subaru include the EJ20 2.5L/EJ205/EJ207/EJ20G and EJ25 2.5L. Always be alert for any unusual engine sounds and noose. Owners of 2009-14 Subaru Impreza WRX and WRX STI models have launched a class-action lawsuit, alleging the pistons and PCV (positive crankcase ventilation) systems in the high-performance 2.5-L turbocharged engines may overheat or malfunction, requiring a king's ransom in . EJ20s two-liter model was the forerunner of all EJ series and replaced the old EA82 1.8-liter engine to become a better option for most Subaru models. A Subaru owner can expect to visit the repair shop relatively few times in a year for unscheduled repairs. Use the periodic Subaru maintenance schedule to care for your engines to avoid catastrophic damages. Its a feisty car whose character has won the hearts of many, especially in off-road situations. Continue with Recommended Cookies. Thank you. Subaru had three lawsuits claiming an engine defect in 2012-2017 WRX and WRX STI models equipped with the EJ25 2.5-liter turbocharged four-cylinder engine. Let's check each model. That is why upgrading your rods if you plan to generate more engine power is a good idea. Because they undergo a flawed casting process that affects the ability of the pistons to function well, the piston consumes a high amount of power, causing the engine to overheat and crash. The Subaru BRAT (acronym for "Bi-drive Recreational All-terrain Transporter") was a light-duty, four-wheel drive coup utility, version of the Subaru Leone originally introduced in 1977. This problem is more common in early models. The main problem years are 1996 through 2004. 100. Important Facts! One of the most common engine problems Subaru owners have experienced is faulty head gaskets. I bought a replacement Jeep, a 2012 Liberty (98K) as a second car. Thats how the engine has been named after. Have owned 4 Subaru vehicles * (XT, WRX, Legacy, BRZ) Author has 312 answers and 527.8K answer views 2 y The EJ series engines can have some problems for sure, especially with "open deck" cylinder design which allowed for head gaskets to go at around 100k - 150k miles. Its horizontal cylinders make it harder to fix head gasket issues on the side of the engine. Older models with the EJ25 flat-four Boxer engine typically experience gasket issues once the vehicle had clocked 90,000-150,000 miles. The second group of head gasket problems came with the EJ251, EJ252, and EJ253 2.5 liter box engines. They now have increased piston stroke and a decrease in the bore size, which enhances the engine performance and reliability The EJ205, EJ207, and EJ20G are also more prone to malfunctions due to clogged rings. The EJ25 is the biggest brand in the Subaru engine series. Most Subaru engines run over 200,000 miles before needing maintenance for speed and reliability. In this guide, we'll tell you which Subaru engines to avoid, based on reports from drivers and mechanics. Also, the Subaru used low-quality head gasket components, These head gaskets are prone to external leaks between the cylinder heads and the engine block causing cooling and oil to, flow in the aperture. The most common engine to have head gasket failures is the naturally aspirated (non turbo) Subaru 2.5 L four cylinder engine, commonly known as the EJ25 motor. But we still like our Subaru's!! MILWAUKEE (April 13, 2023) - Nitro Circus, the most explosive crew in action sports, will bring its non-stop, action-packed freestyle motocross show to the Milwaukee lakefront during the Harley-Davidson Homecoming Festival at Veterans Park. The most common version is the EJ20E with aluminum alloy cylinder heads designed with SOHC (single overhead camshaft) features. Inside the EJ20 engine, there is an aluminum cylinder block having dry cast iron sleeves lined by the internal walls of the engine. The studies below suggest new 2021 Forester, Outback, and Crosstrek models are reliable. Out of Subaru's lineup, Subaru has five recommended models from CR. The new engines are known for producing increased torque at lower engine speeds, saving fuel, and making the vehicle safer. Based on data collected from a Customer Report in 2021, Subaru is proud to be in the top 25% of most credible automobile brands. $1,400 transmission job. That engine has proven to be one of the least reliable engines out there. We have now had three Subaru's, two Forester's, and the last one a 2015 Outback. They offer a power output range of 197 HP at 6,000 RPM and are easily identified by coil on the plug, with 2 M6 bolts per coil and some valve covers with 4CAM 16VALVE labels. Which Subarus Should You Avoid? I would appreciate if something can be done and I have my own dependable transport again. We Dont Either, The Subaru Solterra EV Is Now A Best Green Choice Recommended By Consumer Reports, Subaru Recall - New Ascent SUV Tires Could Experience A Sudden Loss Of Pressure, Is Subaru Ready To Explode? We were really surprised, our Liberty's CABIN is much quieter than than our Outback! However, from its inception, EJ 25 was plagued with problems. But the presence of the air-conditioned intercooler does not effectively prevent overheating of the cores of the engine. Most Subaru engines can be expected to last through 200,000 miles before needing significant maintenance or repairs. The EJ25 Turbo and Non Turbo engines can be made to be more reliable, but require a bit of work generally (Head Gasket or uprated pistons to deal with ringland failure risk) The questionable reliability is made up by the superior AWD. Despite the critical challenges facing most Subaru engines, such as overheating, oil leaking from the gaskets, high cost of maintenance, and excessive oil consumption, Subaru engines are generally reliable. The first engine to avoid is the 2.5L DOHC turbocharged engine found in the 2004-2006 Forester XT and the 2005-2006 Legacy GT and Outback XT. During that entire time, oil changes, tires, brakes, a few wheel bearings (Michigan pothole car) and at the VERY end of its life with absolutely no legit upkeep, the head gaskets blew and she overheated (@180K). Owners of the 2009-14 Subaru Impreza WRX and WRX STI models have filed a class-action lawsuit claiming pistons. Unwanted buildups of sand, dust, salt, or organic matters within the cylinder can result in poor lubrication and overheating of the engine. The lawsuit settled out of court because owners claimed that the 2011 to 2015 models Subaru Forester, Outback, Crosstrek, Impreza, and Legacy used high oil prices among common uses. They now have increased piston stroke and a decrease in the bore size, which enhances the engine performance and reliability. 7 Questions Answered. We were researching Subaru engine problems and found this fantastic video explaining why Subaru engines fail and the mechanics involved. The improper performance causes internal components to overheat or stick. Power Vehicle Dependability Study but does improve from last year. There are several Subaru models to avoid when shopping for a used Subaru. Subarus Symmetrical All-Wheel Drive system is a prime example of this approach, providing excellent traction and stability on various road surfaces and weather conditions. Subaru 2.5-L Turbo Four Cylinder. We hope to have satisfied you with our detailed answer to concerns which Subaru engines to avoid. Besides unnecessarily boiling the engine, it also induces electrical issues, such as fuse explosion, short circuit, or sudden engine power loss. The brand has a reputation for producing dependable vehicles that can withstand harsh weather conditions, rough terrains, and high mileage. why Subaru engines fail and the mechanics involved. In all the problem vehicles, the head gasket used was a single graphite-coated head gasket known to lose its adhesion at about the 100,000-mile mark. Four Wheel Trends | 4441 Six Forks Road, Suite 106-205, Raleigh NC 27609 | (919) 526-0419 Scrolling to the end, you may find some helpful things in the FAQ section. Oil or a cooling substance can penetrate the burning chamber and begin to burn. The car has been well Maintained . Other drawbacks to mention are short rods and small bases, which have obstacles in withstanding heavy loads. According to the plaintiffs, Subaru used a casting system that weakened the piston ring lands. The manufacturer had to build its own chassis with more complex calculations to install the Boxer engine. 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