Yes I know some noise is to be expected upon heavier acceleration. 2.5L turbo, without sti. If you notice black smoke pouring from your exhaust pipe or a rough idling, it's probably time to shop for OEM-quality replacement exhaust parts with Subaru Online Parts. The best (least expensive) way to silence an engine isn’t with fancy mechanical wizardry. Heck, they may even help out.Wheel ramps / jack stands / pull front wheels up on the curb - APPLY EMERGENCY BREAK!Dremel tool with metal cutting wheel - used to cut rusted flange off midpipe and spring bolt kit if rusted on. Contact us. Subaru offered the following explanation for the distinct sound that may give some folks cause for concern. I have a 2010 manual forester (non turbo) and it is making a very odd noise. Replace your Subaru's stock exhaust system to an aftermarket performance system for upgraded exhaust flow, and noise. It's recommended to have a professional mechanic complete exhaust system repairs as they usually require specific tools or welding to be done to replace or repair broken exhaust components. Whether it has to do with the horizontally-opposed “boxer” engine design, or not, the four-cylinder Subarus are, shall we say, “automotively verbose.”. The gasket between the cat-back and the midpipe is completely worn out. Did you make this project? Reply Prev of ... Jaguar, Subaru, American V8's, My old FIAT X1/9 with the ANSA exhaust, My workmates old E60 M5 with the sports exhaust fitted - … Any ideas? The worst complaints are engine and engine cooling:exhaust system. Loud exhaust noise is common in cars that have powerful engines. They all did that. Depending on several different inputs into the ECU, such as engine coolant temperature and throttle opening angle, this noise could occur until the engine coolant temperature reaches the desired temperature. After some probing, I found an exhaust leak underneath the cabin. The S-Type sound level provides a more aggressive sound over stock and accentuates the Subaru Boxer engine rumble. Is this normal.”. As a four-time Subaru owner, I wondered if what Johnznot heard was anything more than the usual rattle of a 2.5-liter, four-cylinder Subaru engine. The mufflers I have linked to are typically packed with sound deadening materials which dampen the exhaust noise as it travels through it. In this case, it is probably upper valve train or tappet noise caused by either low oil pressure, excessive valve clearance or a defective hydraulic valve lifter. rattling noises from your subaru impreza vehicle are most likely caused by the car's exhaust system and are associated with worn muffler, catalytic converter or exhaust pipes. Subaru says it will recall certain 2004 model vehicles due to possible fuel leakage problems. It can be especially annoying if you have a race car that could easily claim the top spot in the next Need For Speed game. Determine whether the noise is coming from the front or rear of the exhaust system. PARTS Exhaust flange gasket - sometimes called a donut gasket New exhaust spring bolt kit - Can reuse old spring bolt kit if it's not rusted outSplit Flange - Make sure the inner diameter is large enough to go around the midpipe. The top image is a diagram of an exhaust system from a car much nicer than mine. Before we debate if there is a problem with the 2017 Outback, let’s step back and consider what we Subaru lovers know; Subies sound different. A healthy and spirited debate followed. First things first, though. This change causes part of the combustion process to occur as the exhaust valves are opening in the cylinder head. Because of that, this process assists the engine behavior at start up to help them warm up. When I start it, it makes a constant rather loud rumbling noise that seems to be coming from the rear of the car. This really works. Description. Does the noise go away or lessen when the engine gets hot? Sounds like a gritty/rattle that is not loud but loud enough for me to suspect something is not normal. Johnznot reports that his Subaru dealer told him that the “…rattle upon startup was normal (due to the boxer engine design), and that no harm is being done. However, I’ve even seen someone pack their own muffler by opening it up and stuffing it with metal wool, steel scrubs , and fiberglass packing for motorcycle exhausts (Amazon) . Rely on solid and tough BOSAL components to repair your ride. Thin tinny heat shields cover almost every single exhaust component … That leaves a lot of horsepower on the table! Rather, stuff some mouse fur in the cracks so the sound can't escape! Works on various flanges, flat, doughnut, 2 or more bolts arrangements. Johnznot called first and asked his dealer if the sound was a problem. 2016 Subaru Forester - UNKNOWN rattle noise from muffler/exhaust 2 Answers. I just don't know what to expect from this car. It has a timing chain, and the engines use 0-20 synthetic oil. Subaru Exhausts for Subaru Impreza, Subaru Forester Exhausts Hayward and Scott performance Exhausts. 2005 Subaru Outback i 4 Cyl 2.5L Naturally Aspirated, Super Ultra Low Emission Vehicles (SULEV), Without SULEV Emission, Left Hand 2005 - 2008 Subaru Outback Limited 4 Cyl 2.5L 2006 - 2009 Subaru Outback 2.5i Limited 4 Cyl 2.5L Therefore in order to fix this I would have to buy a new midpipe (with catalytic converter and all its precious metals) for about 200$, alternatively I could have a muffler shop weld on a new flange (I wish I could do it myself but welding is above my skill set). The heat shields make a noise that screams “there’s no oil in the crank case!”. This BOSAL Exhaust Muffler fits your 2004 2003 2002 Subaru Outback 3.0L H6 and is perfect for a tune up or performance upgrade. After some probing, I found an exhaust leak underneath the cabin. Depending on several different inputs into the ECU, such as engine coolant … But its the damn heat shields on the exhaust rattling. Without turbo, sedan. But short of removing them, to see if that makes the noise go away, I don't know how to track this noise down. Does the noise go away or lessen when the engine gets hot? There are posts on other model (later model Subaru… Also please check out the statistics and reliability analysis of Subaru Forester based on all problems reported for the Forester. If you use a hydraulic lift make sure to use jack stands. Further, there's an annoying incidence of cracks in the front exhaust system that cause quite the cold roar, sometimes sealing up to near-normal noise … Rely … It's very frustrating, esp since my foz is a 6 mt and constantly getting reved over 4 k. Pay attention to the gasket orientation as the new one will need to be placed in the same orientation. Subaru Forester owners have reported 20 problems related to engine exhaust system (under the engine and engine cooling category). Gonna go fix it as soon as I get the stuff. We have 2003 and 2005 Outbacks. Subaru's are notorious for having exhaust rattles from the heat shields on the catalytic converter. >> Buy a used car from reliable Japanese sellers here << You have to inspect the exhaust system to find out if heat shields are causing rattling noise in car when accelerating. The release of the high-pressure combustion gasses entering the exhaust system causes this noise. Additionally, the flange on the midpipe is completely rusted through and not serviceable. 2020 Subaru Outback Exhaust Systems BORLA® has developed an exhaust system for Subaru’s sixth generation Outback. Basically I want something that is as quiet as possible during idle or low rpm (<3500rpm), and rumble like hell the moment boost kicks in. Exhaust Your Subaru's stock exhaust system is designed to minimize noise and to be manufactured cheaply. Happy driving and remember... don't drive like my brother. Remove any heat shields in the way and the spring bolt kit. To me, it sounds like bearings rattling due to low oil pressure, but the dealer says that every Outback and Legacy does this. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA® Sound of Power respected by motoring enthusiasts everywhere. Subaru’s Jessica Tullman was very helpful and she did some digging. 3.6L, rear. 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