Thickness of cylinders sidewalls decreased to 3.2 mm, new pistons were installed, compression ratio was increased to 10.3. For these reasons it's definitely worth making sure you know what you're getting into if you're interested in picking up a new or used Subaru. Standard all-wheel drive on most of their cars, unique styling, and a boxer engine help to separate them from the Toyotas of the world. The car has been well-cared for. So that's something to consider. If the timing chain is indeed the problem, it will need to be replaced. This engine features many similarities from the initial FB20 engine, but Subaru also integrated a lot of new technologies and innovations. Most Common Problems in the 2022 Subaru Outback 2.5L Engine There are many potential problems that may happen to an engine despite its durability. The most common of them is battery failure, which can happen even if it's not yet due for its recommended replacement. It handles well and has a very reasonable amount of power. 2022 Cash Cars Buyer. Turbocharged. The rest problems of FB25 are the same as FB20. Over 760,000 Vehicles worldwidewere subject to this recall. 2018 Subaru WRX STI Limited. It seems to work for some, but doesnt work for others. Karl Benz (yes, of Mercedes-Benz fame) patented the flat-four engine in 1896, and Subaru introduced it in their lineup in 1971. Overall, the engine is solid and probably more reliable than the FB20. [4][5] A compact oil pump is also credited with contributing to the reduction in friction losses. I drove a 92 mile trip the other day and registered 38.9 mpg at about 70 mph. Fuel is sprayed directly into the cylinders, so there is no fuel flow to clean intake valves. Hes been repairing, upgrading, tuning, and writing about cars & engines for over a decade. The application of continuously variable transmission (CVT) in vehicles is no longer new. But why a boxer to begin with? Boxer engine has great reliability, and I would most definitely recommend it as a car choice. 2022 Subaru Outback 2.5L Engine: Longevity, Problems, and Specs Deodorant on Squeaky Belt. Very fast, heavy clutch2019 Subaru WRX STI. I like it for reliability. There are three main symptoms that could indicate a problem with the timing chain. Unlike FB20, this 2.5-liter motor had no problems with a high oil consumption. Excess carbon deposits can cause significant power loss and other drivability problems. The EJ257 is one of the most iconic and legendary tuner engines of all time. Apart from that, the engines received several changes that took the engine to the top. 0000030282 00000 n 0000009404 00000 n 0000009888 00000 n [13], Used in the fifth generation Impreza sedan and hatchback; compared to the FB20B, the FB20D adds direct injection, providing a slight increase in power and efficiency. The cylinder block of the Subaru FB25 engine was built on aluminum. As you may have guessed, the most common issue drivers reported was excessive oil consumption. Were classifying these as the most common, but it doesnt mean they affect a large percent of engines. According to the recall, the engine computer has the potential to keep powering the ignition coil even after the motor was shut off. First up is an issue unique to the direct injection (DI) FA25D engine in 2019-2020+ models. You can imagine how bothersome that would be over the course of a year if you had to continually add oil at that rate. There are some other methods that are effective, but more intensive and time consuming. Nice car, but terribly expensive maintenance. 0000012027 00000 n These present efficiency in air cooling because of the airflow distributed evenly across the four cylinders. The latter also featured direct injection, resulting in a slight boost in power and fuel economy. The DOHC engines are more difficult to service when its time for a spark plug change. The Subaru Crosstrek has been another relatively problem-free model for the Subaru lineup. 0000178203 00000 n what specific cat back exhaust systems would you suggest? Its likely many Subaru FB25D engines will go their whole lives without addressing this problem. U endstream endobj 21 0 obj << /BaseFont /LNTWCR+ArialMT /Encoding /WinAnsiEncoding /FirstChar 32 /FontDescriptor 19 0 R /LastChar 149 /Subtype /TrueType /ToUnicode 20 0 R /Type /Font /Widths [ 278 0 0 0 0 0 0 191 333 333 0 0 278 333 278 0 556 556 556 556 556 556 556 556 556 556 278 278 0 0 0 0 0 667 667 722 722 667 0 778 722 278 500 667 556 833 0 778 667 0 722 667 611 0 667 944 667 667 0 0 0 0 0 0 0 556 556 500 556 556 278 556 556 222 222 500 222 833 556 556 556 556 333 500 278 556 500 722 500 500 500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 350 ] >> endobj 22 0 obj << /Ascent 1056 /CapHeight 716 /Descent -376 /Flags 32 /FontBBox [ -628 -376 2000 1056 ] /FontFamily (Arial) /FontFile2 50 0 R /FontName /DOUFUH+Arial-BoldMT /FontStretch /Normal /FontWeight 700 /ItalicAngle 0 /StemV 136 /Type /FontDescriptor /XHeight 519 >> endobj 23 0 obj << /Filter /FlateDecode /Length 486 >> stream Cannot think of any problems that the car has. So the only difference between the B and the D is the compression ratio? As a creative director, hes worked with clients like BMW, MINI, and Jaguar Land Rover. A Subaru offers a lot of advantages over its competition, and with an overall dependable reputation and the safety of standard all-wheel drive and, youll be able to enjoy many trouble-free miles with your Subaru 2.5-liter engine, regardless of the model you choose. and get all the new deets right in your inbox, Leaders in automotive prformancee and tuning guides, Please enable JavaScript in your browser to submit the form, The 5 Best Subaru BRZ, FRS, GT86 Performance Mods, Subaru EJ207 Engine Problems, Reliability, Specs. We wont hold carbon build-up against the FB25. The FB-series comes in as the successor of the famous or infamous EJ25-depending on whose side of the story you're on. Car and Driver noted the difference from the 2.0-liter version in a 2006 WRX. Over at EngineBuilder, Justin Anning of Nemesis Performance explains. You can find the TSB from Subaru here. FB20 used to have this shortcoming till 2013. [26], Compared to the previous EJ25, which had a displacement of 2,457cc (2.5L) from an oversquare 99.5mm 79mm (3.92in 3.11in) bore and stroke, the FB25 has slightly larger displacement on a less oversquare bore and stroke. 0000005470 00000 n MG2 is used under parallel hybrid operation as well. A few of the most common problems with the FB25B and FB25D flat-4 engine include: 1. In March of 2019, she was 0000002485 00000 n They have something to offer, Read More Subaru WRX Coilovers GuideContinue, Subaru WRX Downpipe Upgrades Downpipes are one of the best performance upgrades for turbo engines. b94jMdg^ Detergents then wipe away any oil deposits. This new engine is also chain-driven (as opposed to the EJs belt), which is a more robust setup that allows for a new block design with fewer emissions. I have not had any problems with it, and I hope to see the car perform for years to come. The engine blocks are known to fail. Just like the Forester, the Outback suffered issues with the excessive oil consumption. Based on the potential cost of these two problems(over 10K! Repairing the head gasket in your engine is not a cheap job by any means. 0000029253 00000 n The Subaru Ascent is another extremely new vehicle in Subaru's lineup. trailer << /Size 67 /Info 12 0 R /Root 15 0 R /Prev 745940 /ID[<7f30f348bdfbec40a445a91005e1e234>] >> startxref 0 %%EOF 15 0 obj << /Extensions << /ADBE << /BaseVersion /1.7 /ExtensionLevel 3 >> >> /Lang (en-US) /Metadata 13 0 R /Outlines 10 0 R /PageLayout /OneColumn /Pages 11 0 R /Type /Catalog /ViewerPreferences << /Direction /L2R >> >> endobj 65 0 obj << /S 55 /O 203 /Filter /FlateDecode /Length 66 0 R >> stream The Japanese brand's unique always-on Symmetrical All-Wheel Drive (SAWD) system has been the foundation of its vehicles for decades. Subaru has an impressive track record for quality automobiles. Handles amazingly. The rest problems of FB25 are the same as FB20. If you're thinking about a Subaru engine for your car, you've come to the Hb```b``e`c`` 6PcO I 0 It all adds up to 170-182 horsepower and 174-176 lb-ft of torque. Symptoms of excess oil consumption are generally pretty simple. Runs fine no smoke . However, the costly cam carrier seal oil leaks and possible oil consumption problems bring the FB25 reliability down a bit. Often, the consumption itself is the only symptom. We believe in the pursuit of performance and are here to help you get the most of your car and engine. Direct injection doesnt have that same benefit. Very happy with vehicle with exception of oil consumption from the get go. This can be due to a lot of factors such as manufacturing defects, poor maintenance, bad driving habits, and harsh environmental conditions that the vehicle is frequently exposed to, among others. It tends to last the same as the engine itself. One of the signature boxer engines of Subaru that made it to the Outback is the 2.5L engine with the designation FB25. 0000001923 00000 n Enough to fit in current standards. At the time, Subaru said they were unaware of any crashes or injuries that were related to the issue, and they were trying to get ahead of it before something worse happened. The displacement of the engine sits at 2,498 cc and it uses natural aspiration, making it more effective in moving more air and fuel, allowing it to produce more power. 02/12/2017. That was in mid 2016 and now early 2022 with ~193000 miles my Forester is still performing great with very little as expected oil consumption due to the recommended 0-20W full synthetic oil. If this is indeed caused by a manufacturing defect, you may be able to avail yourself of free repair or replacement of the component. In October of 2019 the Subaru recalled over 400,000 vehicles in the US. Subaru revised the connecting rods and valvetrain components, making the FB25 engine as large as the EJ25 engine; despite smaller bore and stroke dimensions. It powered every iteration of the STi in North America from 2004 on, and was perennially one of the top performance options on, The Subaru WRX is a legend on the streets. The transmission is technically separate from the engine, but it does have a major effect on how the power unit of your vehicle operates. I considered another Subaru with a 3.6 motor, but they discontinued the 3.6. 0000004969 00000 n The Subaru Outback with the 2.5L 4 cylinder engine comes standard with 182 horsepower and 176 pound-feet of torque, which is less than a lot of the other competition on the market. The first is a rattling noise coming from the engine caused by the loose parts of the chain hitting each other or against other components. Performance is great for a quick thrill with this turbo. 0000588671 00000 n High Performance Horsepower - Crate Engines, Long Blocks, Short My 2019 Subaru WRX STI doesn't yet have any issues. This car probably won't make it. It did not affect American vehicles, but the precedent has definitely been set that Subaru has had some serious concerns with their engines. Moreover, it consumes less fuel.. Keeping in line with the recall we mentioned earlier, the 2008 Subaru Impreza mostly had issues with leaking head gaskets. There are 6 key factors that can cause your Subaru to guzzle oil more quickly which are as follows: Wear to the seals or gaskets will result in oil leaks. Available in a majority of the lineup, the EJ and newer FB have been under the hood of Subarus for a combined 32 years. They reduced the cylinder wall thickness to 3.2mm and changed the compression rating to 10.3. WebCoast High Performance - Southern California's Premier Engine Builders with over 40 years of combined race and hot rod experience. In 2014 they slightly modified FB25. Subaru exacerbated this problem for many drivers by essentially ignoring it and saying it was part of the normal operating procedure for the vehicle. POWER STEERING FILLING/BLEEDING INSTRUCTIONS - Eddie Some people even get quotes of $3,000+ to fix the oil leak. r\a W+s.t%JTvU[[[[[[`')]q{W2KRd)Y,e=(zPA(e'N:1o7o77nvJ}6i l1K There was an additional recall that covered 205,000 Subaru Imprezas that were made from 2017 through the 2019 model year as well as 2018 Subaru Crosstrek. The cost of replacement will depend on the make and model of your car, but it's usually not a cheap repair. The performance is fun and you can really make it your own car. Well use the Forrester as our example, as its Subarus most popular model. Very fast, with a turbocharged boxer engine, but still is able to use its performance in all conditions because of its amazing symmetrical all wheel drive. It has a bore of 94 mm and a stroke of 90 mm to put a balance between engine rev and fuel economy.