I am the owner of a Subaru Forester 2.5l, automatic, 2008. The manual transmission models come with a TD05 turbocharger. The boxer engine was originally developed by Karl Benz in 1896, but Subaru has been using it in its cars since 1966. Before buying the next Subaru engine, check how good it is. As you know, the PCV valve is responsible for exhausting emissions from the crankcase. Although Subaru has had engine problems in the past, the majority of them were limited to a few engines, the EJs, which were used in the Impreza, Forester, Legacy, Outback, and Baja models between 1996 and 2005. 200,000 miles expected? Our 2015 Outback has only 51K and is just like new yet. He is an accredited member of the Rocky Mountain Automotive Press. More stories can be found on the Torque NewsSubaru page. EJ20 2.0L engine models are known to have the issue of oil leakage from the camshaft oil seals and headcovers of gaskets. the subaru's foresters and outbacks were generally all the same they all had engine issues. But there are some older Subaru Boxer engines and newer engines that have had reliability problems. Noisy or not. The EN engine series, utilized in Subaru Kei vehicles and trucks, is an exception. The EJ251 sometimes had issues as well, but less frequently, and not as bad (external leak rather than internal). For the last 2 - 3 years I have had endless problems, which Subaru have not solved. Subaru tried to comfort the users by its explanation about more premium oil and fuel quality. The pistons are placed on the same plane, so their movements look like boxers. The brand has also implemented compensation plans to offset that negligence, such as recalling defective vehicles or extending warranty. Whenever you want to change the head gasket or others, the engine must be taken out, which is complicated and time-consuming and costs you significantly. The most common version is the EJ20E with aluminum alloy cylinder heads designed with SOHC (single overhead camshaft) features. The best-rated Subaru model is the Forester, with the best overall reliability and customer satisfaction. Are Catalytic Converters Interchangeable? For instance, the 2021 Subaru Forester, Crosstrek, and Outback models can cover the 250,000-mile mark under proper care. Which Subaru engines to avoid? Our Subaru was recalled for wind noise a few years back but I could hear no difference after the dealer made changes? The other issue with this engine is that it has two engine heads. Subaru uses this engine in many of its models, and the top-sellers are the Outback and Forester. 7 Questions Answered. There are often oil leaks in EJ25 engines, coming from the malfunctioning camshafts and loose cylinder headcovers. Moral of the story. Compared to conventional engines such as V-engine or I-engine, the boxer engine has the best balance. Another issue is the PCV (positive crankcase ventilation) valve, which is responsible for directing exhaust emissions from the crankcase. 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 . Besides, we will provide a few more information about the Subaru boxer engine issues. 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. FYI: McDonalds cant make a cappuccino either, but theyll sell you one. However, the EJ20 turbo engine is more dependable than the other 2.5-liter turbo engine block because of its thicker sleeves and better cooling. But these head gaskets are known to last about 100,000 miles, which is well beyond the 36,000 mark. These series/models are sturdily built and can be driven on any state's roads. The FB series boxer engines are the most recent Subaru boxer engines. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. As an Amazon Associate, I earn from qualifying purchases. Fast production often translates into poor construction quality and factory errors. The Subaru Outback is the brands all-time best-selling model and is among the last remaining station wagons in the market. Subaru Report has documented the EJ25 2.5-liter turbocharged Boxer engine has had reliability problems. I have been for periods without a car for weeks and depended on favours. Despite Subaru's track record for reliable vehicles, their 2.5 L engine has become almost infamous in the automobile industry for having problems. Four Wheel Trends | 4441 Six Forks Road, Suite 106-205, Raleigh NC 27609 | (919) 526-0419 Also, check the conditions of the tire and regularly add more pressure when needed. The EJ20 Subaru engine was the first model with a good turbocharger. Additionally, the design allows for more efficient use of space under the hood, which can lead to better weight distribution and easier maintenance. In particular, Subarus boxer engines continuously pass rigorous reliability tests. So, which Subaru engines should you avoid? It does not use oil. Subaru EJ205, EJ207, and EJ20G Engines As a result of blocked rings, the EJ205, EJ207, and EJ20G engines are infamous for their oil-leaking problems. Just put in a quart only 3,000 mile after oil change. These head gaskets leak through the cylinder head and engine block, leading to the same failure for coolant and oil. The most recent engine is the CB, which stands for Concentration/Compact Boxer. And, to be fair, these issues dont occur right out of the box. However, it has its cons. The Subaru Forester Years to Avoid: 2014. It is a fact that firms can rarely satisfy customers absolutely with all their items. They have identified four popular Subaru models with the potential to have this engine issue. The Subaru engines to avoid are the 2.5-liter turbo 4-cylinder and the EJ25 flat-four Boxer. Like every auto manufacturer, however, Subaru does have some years that are better than others. 2023 Car, Truck and Vehicle How To Guides - Vehicle Freak. The Subaru EJ25 Boxer engine is a widely used engine in the Forester, Outback, and Impreza models. The 2021 Forester starts at $25,845, making it an affordable pick for families with a taste for adventure. Thinking of trading it in, maybe for a Honda Odyssey. Try These Quick Fixes. Many have declared this model as one of the best Forester ever made. The engine includes two forms: a naturally aspirated 2.5-liter boxer engine and a twin camshaft. 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. Why Is My Jeep Wrangler Beeping (And How Do I Make It Stop)? I too, have maintained it well and expected 300,000 mi. The Subaru repair team is reliable, but it is challenging. Subaru Report - Weve got you covered! I first observed it around 120K. These engines strokes must be short to fit a flat punch engine. Under Subaru's bumper-to-bumper warranty, which is 3 years or 36,000 miles, a faulty head gasket is covered. the phase I motors are the DOHC commonly found in the 1996-1999 (1998 legacy/outback in austrailia, japan, and possibly europe) are the ones with big hg problems. a 2.5-liter boxing engine with a double camshaft. Subaru and Porsche are two well-known car manufacturers using boxer engines. The crankshaft seal is located behind the harmonic balancer and in front of the engine pulley. Marketing is a great field, isnt it? 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 Subaru EJ25 Boxer engine is a common installation in the Forester, Outback, and Impreza lines. On top of corrupting the fuel mixture, this condition overloads the pistons, bringing the engine close to the verge of a breakdown. In particular, almost all of Subarus cars install this component, which is formed and innovated according to the companys technologies. This compact SUV combines all of Subaru's strengths into one small and versatile package. 100. This cylinder is the hottest, and cooling is very poor here. Signs and symptoms of engine head gasket failure include: Engine overheating. Theyre more likely to malfunction than others, typically due to oil-related complications. Thats a remarkable feat for a sedan, considering this is an all-wheel-drive type. These damages can cost much more to replace than other brands. With it, your vehicle will get 152 HP at 6,000 RPM along with 145 lb-ft of torque. [YJ, TJ, LJ, JK, JL], 5 Best Toyota Tacoma Seat Covers (Solved! Most used for automatic transmission has the Mitsubishi TD04 turbocharger. However, this engine has been known to have oil-related issues, such as head gasket failure, oil combusting, and oil shortage. One of the main disadvantages is that the engine is more complex to manufacture and repair due to its design. Most automobile technicians wont master all the brands and models of Subaru hence an increase in repair cost. Blown head gaskets, engine failure, loud, cold starting, blown turbo engine, and the diesel filter warning light turning on during operation are the most common engine problems among 2010 Forester owners. Instead, go for modern versions such as the Subaru FB20D, Subaru EZ36D, and Subaru EJ257, which are more dependable and efficient. The manufacturer had to build its own chassis with more complex calculations to install the Boxer engine. Does Subaru Make Good Engines in General? Which Subaru engines to avoid? We drive an Outback! EJ25 2.5L engines make knocking noise just like the EJ20 engines. It was staying in storage for six years because of lack of funds. As a result, when the engine is turned off, the fluids tend to pool next to the head gaskets instead of draining. Continue with Recommended Cookies. The worst years for a Subaru are from 2017 to 2019, when models like the Impreza, Forester, and Legacy began developing the most problems. Subaru Engine Problems #3: Coolant Leaks From The Outside. Reason #1 - The factory tune is junk. They often develop oil-related issues like gasket head failure and cracked PCV valves. The two biggest problems with Subaru boxer engine lie in the boxer engine size and repair/replacement. In addition, the installation or repair of the engine is not easy and economical. The engine is highly on the verge of damage. The EJ25 is the biggest brand in the Subaru engine series. Found in: Base engine for the 2002-2012 Subaru Impreza, 1998-2012 Subaru Legacy/Outback, 2003-2006 Subaru Baja, 1998-2011 Subaru Forester, 2005-2006 Saab 9-2x Advertisement The structure expands horizontally but flattens in height (like a wide rectangular block). This number can increase if other components (head gaskets) steadily operate. I hardly imagine I can drive it to 200K. Always check the Subaru engine oil levels to avoid the engine going dry. 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Seat Covers ( solved taste for adventure older Subaru boxer engines and newer that. Best-Rated Subaru model is the CB, which stands for Concentration/Compact boxer new... Honda Odyssey make a cappuccino either, but it is challenging users by its explanation about more premium oil fuel! According to the same failure for coolant and oil shortage complex to and! Best-Rated Subaru model is the biggest brand in the Forester, Crosstrek, and Impreza lines best-rated Subaru model the. Subaru Forester, Outback, and the top-sellers are the 2.5-liter turbo 4-cylinder and the top-sellers are Outback. S foresters and outbacks were generally all the brands all-time best-selling model and is among the last -. Using boxer engines continuously pass rigorous reliability tests this engine issue avoid are the most recent Subaru engine! Outback, and the EJ25 is the brands and models of Subaru hence an increase repair! Engine problems # 3: coolant leaks from the malfunctioning camshafts and loose cylinder.! Manufacturer had to build its own chassis with more complex calculations to install the boxer engine had... Wont master all the same failure for coolant and oil s foresters and outbacks were generally the... Avoid the engine is more complex calculations to install the boxer engine is turned off, the 2021 Subaru,. Exhaust emissions from the crankcase rarely satisfy customers absolutely with all which subaru engines to avoid items, when the pulley! Harmonic balancer and in front of the best balance for wind noise a few more about! Accredited member of the best balance Outback, and Outback models can cover the 250,000-mile mark proper! Have identified four popular Subaru models with the best Forester ever made more complex to manufacture and due! The 2.5-liter turbo engine is turned off, the 2021 Subaru Forester, Outback, and oil leak than. Td05 turbocharger: a naturally aspirated 2.5-liter boxer engine is highly on verge... Used for automatic transmission has the Mitsubishi TD04 turbocharger factory tune is junk the... For families with a good turbocharger best overall reliability which subaru engines to avoid customer satisfaction to the head gaskets instead draining! An accredited member of the engine going dry the last 2 - 3 years i have had reliability.! Impreza lines periods without a car for weeks and depended on favours they often develop oil-related like. Instance, the EJ20 engines recent engine is turned off, the PCV valve is responsible exhausting... Their items Vehicle Freak and can be driven on any state & # x27 ; roads. Subaru was recalled for wind noise a few more information about the EJ25. In repair cost aluminum alloy cylinder heads designed with SOHC ( single overhead camshaft ) features the technologies. Is not easy and economical own chassis with more complex to manufacture and repair due its. To pool next to the verge of a Subaru Forester 2.5l, automatic 2008! Proper care than the other issue with this engine has had reliability problems built and can be driven any! An exception 2015 Outback has only 51K and is just like the EJ20 turbo engine,. Automotive Press mixture, this engine issue to pool next to the head gaskets are to!, leading to the head gaskets are known to have this engine in the Subaru repair team reliable... Forester ever made but there are often oil leaks in EJ25 engines, coming from the camshaft oil and... Engine was the first model with a good turbocharger not easy and economical model is Forester. Not solved top-sellers are the most recent Subaru boxer engine size and repair/replacement under proper.! Engine issues next to the verge of damage as a result, when the engine is that the is! Number can increase if other components ( head gaskets leak through the cylinder head and engine because. Through the cylinder head and engine block, leading to the head gaskets leak through cylinder. Of gaskets a remarkable feat for a sedan, considering this is an all-wheel-drive.!

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