It’s tough to detect a cracked flywheel because it’s … If you need it, you can change these parts with a new car bracket instead. Were you able to check it? Either way, you should aware enough to figure out the source of the rattling noise in the muffler, and solve it right away. It’s not a major issue, but you would want to check it to rule out the … Sometimes, metal pipes around the muffler can already be damaged. Discussion in '2nd Gen. Tacomas (2005-2015)' started by bdh10, Jul 9, 2019. The effect of a noisy muffler is not only lied within a disturbance. I have a 2000 S-10 with a 2.2L, regular cab and I have 136,xxx miles on it. Check out the muffler’s external part for any kind of dust, debris, or similar obstacles. Testing The Knock (KS) Sensor The knock (KS) sensor can be tested by tapping on the engine near the sensor. Happens for only about 2 seconds when what I believe is the valves moving on the active exhaust. Check out the muffler’s external part for any kind of dust, debris, or similar obstacles. As well as, If work your engine hard with a load; like driving uphill, passing a slowpoke or towing a trailer. Anymore acceleration to speeds beyond that do not make this sound. Take help from the manufacturers if needed. As an example, a loose muffler gets into excessive movement along with other components nearby it. There are other issues available such as loosen up connection, rust-affected parts and so on. Sometimes, metal pipes around the muffler can already be damaged. I also feels like something is holding down the acceleration of the vehicle during the time I hear that rattling sound. It sounds like a … Save Share. I finally figured it out when I pulled out a 3 inch shard of metal from the tailpipe. Nothing is loose under the hood (prop, washer fluid reservoir ect.) Some of these include: Loose or broken pipe connection; Rusty muffler; Blown exhaust gasket; Broke or disconnected exhaust … The structure of the muffler consists of perforated tubes or chambers. I'm getting an exhaust rattle when I crank my challenger up. So maybe under acceleration but not while crusing. I was just wondering if it could be my original cat or my dynomax turbo muffler that … This can cause the rattling noise that you will hear from under the vehicle. Nothing is loose under the hood (prop, washer fluid reservoir ect.) 1997 Subaru Outback All Wheel Drive Automatic 140000 Miles Now, what is the source of the rattling noise in the muffler? Consequently, you may hear a pinging or rattling sound (spark knock) when accelerating, driving up a hill; or when the engine is lugging under a heavy load. We’re about to show you the possible reasons for muffler noise while accelerating, and its remedies. Spark knock always sounds like a rattle to me. Happens for only about 2 seconds when what I believe is the valves moving on the active exhaust. While the exhaust is outside of the engine itself, it can often cause sounds that are confused for an internal engine rattle. The rattle sound could be the heat shield but it could also be anywhere else in the exhaust … You may consider getting several sizes of it for more proficiency. Regardless of the fault, you must identify and correct the problem quickly -- otherwise your problem will get worse. But if you’re definite about the source to be the muffler, that has its solution. When the car warms up after I drive for 20 minutes, the rattle goes away. You say "typically" you run 91 octane. We tighten the bolts from the exhaust pipe to the manifold as they were a little loose but the noise remains. In the following section, you will have a complete idea on how to solve the issue-. But sometimes, that may not be the only issue to take care of. When i accelerate I hear a rattling noise like something being shaken in an empty metal can. When I Turn On My Defrost It Smells Like Gas Or Exhaust, What Could Cause This? The rattle sound could be the heat shield but it could also be anywhere else in the exhaust system? My Exhaust Is Extremely Loud. Like McLovin, seems to be worse when the engine is cold, and mine seems to rattle nicely at about 3200 rpm. This kind of objects often turns the muffler to come loose and cause internal rattling noises. You may consider getting several sizes of it for more proficiency. When you are accelerating the car, the exhaust pipe gets in contact with these items. If you decide to install a new muffler, make sure it suits your car’s model. I'm getting an exhaust rattle when I crank my challenger up. But we want you to get done with the issue, and bring the muffler back into its job. If you have a car with active exhaust, it’s possible that the rattling noise that you hear when accelerating is caused by a component of the active exhaust system. If you get the solution right from the 4 tips we’ve explained before, that’s great. Broken Belt Tensioner or Chain Tensioner. My Prius makes a rattle noise under medium acceleration. I've heard a few theories like the oil control valve or the catalytic converter. There are many brands and models available. As the exhaust system works as a whole unit, any kind of presence of unexpected materials may lead to several problems like noise, vibration, and so on. Take a rubber mallet and tap pm the exhaust to see if you can locate the noise. Heat Shield. when switching off the engine. Heat Shield. As the vehicle moves, the loose muffler gets hammered into the other parts of the car’s body producing the characteristic rattling sound. Whether it's engine knocking when accelerating or some kind of spark knock or just a general engine noise, some are more serious than others, but there’s one thing that’s true of … The bearings are what allow the cam and crankshaft to spin for thousands of miles and millions of revolutions. The car seems to drive fine and the mods have made it a lot more enjoyable. Tips 3: Check out the bolts and brackets with which the muffler is attached, If you need it, you can change these parts with a, Due to a malfunctioning muffler, sometimes the parts nearby get affected. The exhaust system includes the muffler, resonator, catalytic converter, and header/down pipe. Ever since my truck had about 25k on it the thing has had this odd little rattle/resonance (sounds like exhaust) if it operates at 1600 rpms under light acceleration. An engine rattling noise, or a clicking sound in an engine, can spring up from a number of sources. This rattle noise under the car can appear to come from under the car instead of the rear of the vehicle, showing that the exhaust pipe can be a clear cause of the rattling noise. It could be other things as well. Noises Problem Tips 2: Check out the internal section of the muffler, To clean up the internal dust out of the muffler, you need a. . My Prius makes a rattle noise under medium acceleration. Raised back up and all fixed. Uses a Qt of oil every 1500 miles. It will make the noise as it passes the rpm if you accelerate a bit more briskly but after a certain throttle input point I think it passes the rpm too quickly to produce the symptom. 2015 Crosstrek - metal rattle sound when accelerating. There can be rust or debris around the parts of the muffler if you don’t take care of the muffler noise pretty soon. The valves open and close to let in air and fuel and let out the exhaust. Another possible reason for muffler noise is, there can be issues in parts that are not directly connected to the muffler. Model Year 2012 to 2017 . It creates opposing sound waves that prevent the engine noise to come out. Upon popular demand, we’ve come up with a complete discussion around this very topic. The Transmission Fluid Level. System Efficiency Below Threshold (bank 1) I poked around under the truck; my best guess is that the noise is coming from the area where the exhaust headers come together into a common pipe, … I'm getting a rattling noise under acceleration, whether it's light or hard throttle. What happens is you will hear a rattle and the inside can move causing restriction to the exhaust. I also feels like something is holding down the acceleration of the vehicle during the time I hear that rattling sound. While the exhaust is outside of the engine itself, it can often cause sounds that are confused for an internal engine rattle. A metal rattling sound when I accelerate from a slow speed or from a complete stop. While my car sits idle I can rev my car and never hear the rattle. Today, I was driving around and noticed a rattle sound coming from the drivers side under the hood when I accelerate. When listening around the OSR wheel arch it sounds like pieces of metal are jumbling around in the housing, or it has not been secured properly. However, based on your description, this is the first thing that comes to my mind. It sounds like it's coming from the under carriage but I can't be certain. As a benefit, you don’t get bothered by the highly irritating engine noise. When the car is cold, under acceleration, it rattles good. Has always made the noise ever since I bought it 4 years ago with 150k miles. But before that, let us tell you the consequences of a rattling muffler-. Roughly two-thirds of the way through a four-hour drive, I started to hear a rattling or grinding sound coming from the front of the car, perhaps closer to the driver’s side than the passenger’s. An occasional gassy/exhaust smell from the OSF wheel arch. When you are dealing with a problem of muffler noise when accelerating, there is a 90% chance that an uncleaned or jammed out muffler is the culprit behind. I Brought My Perfectly Fine Car In For New Tires. A muffler is a part of the exhaust system, and it’s installed onto the exhaust pipe. The car still accelerates but is slightly less powerful and exhaust fumes quickly built up in my car. Two codes actually, but both pointing to the mass air flow sensor, I checked my air filter this morning and it looks fairly clean still. There are a lot of different components inside an exhaust system that can cause your car to rattle when accelerating. I hear those have the same symptoms? I was told my air filter could need changing as-well. There could be an exhaust leak, but that would either be a louder engine sound or if it is a small leak, it could sound like a ticking. Then, Most likely you’re probably experiencing spark knock. This might turn it to break off by hitting the bump. If can be a muffling sound, a whining sound, a rattling sound. Taking it to a mechanic soon but will try that when I get home! The rattling sound is temporary and goes away when I reach 30 - 40 mph. An occasional rattle from the silencer (muffler?) What I suggest is this. The baffles in my muffler blew apart, under hard acceleration the rattle was terrible but at cruising speed it was normal. Ever run anything lower? If you become sure about that after thorough inspecting, that’s the only option left for you to replace it with a. . Uses a Qt of oil every 1500 miles. However, when I start the car cold, there is a flutter/rattle when accelerating at low speeds. When the belt no longer moves smoothly along the pulleys, it makes a noise when the car is accelerating. Post Reply. Something Is Also Rattling.... https://www.2carpros.com/articles/mass-air-flow-service. As soon as I move my car and get to … But the symptoms ("rattle" on acceleration, low RPM, engine hot) sure sound like pre-detonation (spark knock). Code P0420= Cat. After headers and full exhaust I developed a rattle after several months. Anymore acceleration to speeds beyond that do not make this sound. These items can get accidentally in touch with the muffler, and that’s what creates the rattling noise in the muffler. Jump to Latest Follow 1 - 5 of 5 Posts. So, the adjacent parts will be in stress, which brings in more noise. Either way, you should not leave a muffler as it is as long as you’re aware of the problem. And that’s what creates this rattling noise. I've installed a 2J pulley and an Injen SRI. I've recently replaced the exhaust with a Magnaflow catback exhaust and second cat delete with a 2J midpipe. It's not doing it on idle or with throttle while in park. (engine knocking) Eventually, with this variant movement, the muffler can get into a lower position than where it should be. The items can be exhaust rubber hanger, loose exhaust bracket, exhaust connectors, etc. A loosen up muffler sometimes gets detached from the bracket or bolt and causes unexpected noise while accelerating. the heat shield on the catalitic converter will rattle at some engine frequencies but not all. Open up the muffler and check for any baffle or other kinds of components. This may not be specific to 2G MDXes, since I have this on my 1G MDX as well as my ex's TL. When you hear a rattling sound, the source can be one of the many parts of the engine and exhaust system. Now and again it also happens when starting up. Sometimes, metal pipes around the muffler can already be damaged. I've heard a few theories like the oil control valve or the catalytic converter. There are many brands and models available. As a result, you will notice a power loss and the additional back pressure can cause the exhaust to leak and the fumes to enter the vehicle. The sound is very hard to describe, it's definitely a metallic sound though. My '99 Legacy is far from quiet, but yesterday I heard a new – and somewhat alarming – noise. Or the catalytic shield. Cracked Flywheel or Flexplate Repair Costs. Has always made the noise ever since I bought it 4 years ago with 150k miles. Now has 210k miles. Today, I was driving around and noticed a rattle sound coming from the drivers side under the hood when I accelerate. When some kind of unexpected sound comes out of the engine zone, most of the car owners take it as a serious threat. Well, there are many components that are nearby the exhaust pipe. This is most noticeable when accelerating because the valves are moving much faster. I finally figured it out when I pulled out a 3 inch shard of metal from the tailpipe. While There, The Mechanic Told Me The Serpintine Belt Needed Replacing. Engine Knocking - Pinging - Rattling Noise - Common Causes Is your engine making an annoying knocking, pinging or rattling sound when you accelerate. © 2021 | Car Care Lab is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising & linking to Amazon properties including, but not limited to, amazon.com, Reasons for Muffler Noise While Accelerating, Another possible reason for muffler noise is, there can be issues in parts that are not directly connected to the muffler. To clean up the internal dust out of the muffler, you need a car cleaning brush with a long handle. In the past few weeks, I have been hearing a rattle is coming from my Scatpack exhaust. I can try to get a look at my MAF sensor soon and get some cleaner just in case it s dirty, I ll check back soon. Could that possibly mean anything for this problem or is this entirely separate? Acceleration Rattle. A metal rattling sound when I accelerate from a slow speed or from a complete stop. This rattle noise under the car can appear to come from under the car instead of the rear of the vehicle, showing that the exhaust pipe can be a clear cause of the rattling noise. Of course! In addition, the exhaust noise might be louder than is when you are driving your cars. That might led the, Tips 1: Cleaning a noisy muffler is as easy as tightening a nut and bolt system. That might led the exhaust system not to work properly. Your engine will ping when the air-to-fuel mixture ignites too early inside the combustion chambers; this problem can result in backfiring through the intake manifold, in extreme cases. Update soon. I guess I have just gotten used to this, but someone pointed out recently who was in my car that when I accelerate at slow to moderate speeds, there is this rattling tin can noise. Ignition pinging is often interpreted as a rattle at first because of the metal-on-metal noise it creates, and it is commonly heard only on acceleration. Trying to help a friend out with diagnosing what appears to be an exhaust rattle. The exhaust system is one of the most common culprits that can make it sound like your Nissan Juke’s engine is rattling. And that’s what creates this rattling noise. I would have guessed a header or exhaust heatshield from the video. When the valves wear they will make a clicking noise. Exhaust Rattle. I have a 2010 tacoma 4 cyl manual transmission. I did some search and found some people with … Here a video clip for fixing muffler noise easily! As far as an O2 sensor, they wouldn't cause a noise. If you become sure about that after thorough inspecting, that’s the only option left for you to replace it with a new car muffler. It was the flex pipe rattling on the frame under very low acceleration. So far, we’ve been discussing the problems of a noise muffler, and the reasons. The flaps in the exhaust might not be opening … As soon as I move my car and get to … The car still accelerates but is slightly less powerful and exhaust fumes quickly built up in my car. This rattle noise under the car can appear to come from under the car instead of the rear of the vehicle, showing that the exhaust pipe can be a clear cause of the rattling noise. Especially, while you’re speeding the car up. Recently my car started overheating due to a leak in my heater hose. And the job of the muffler is to reduce the noise that comes from the engine section. I guess I have just gotten used to this, but someone pointed out recently who was in my car that when I accelerate at slow to moderate speeds, there is this rattling tin can noise. Mine does this too, rattles whenever I accelerate from a dead stop to about 20 MPH. When I began to accelerate through the first two or three gears there was a rattle that seemed to come from the engine compartment on the passenger side. A loose bracket, rubber hanger or connector, or one that is badly corroded, can allow a muffler to rattle as the exhaust pipe bangs against another part … When you are accelerating the car, the exhaust pipe gets in contact with these items. California Car- Is Problem In Front Or Rear Cat? Hopefully the last time I ask on this thread, but I had my CEL ran and the only code that came up was a code for my Air flow sensor. The other noise you might be accustomed to is that of a loud exhaust system. There can be rust or debris around the parts of the muffler if you don’t take care of, In extreme cases, some muffler gets into an unrepairable condition. In extreme cases, some muffler gets into an unrepairable condition. I've was having a noise similar to previously described on acceleration that was resolved. I have to be honest. Now has 210k miles. The rattling sound is temporary and goes away when I reach 30 - 40 mph. In case you can’t figure it out yet, you should take the consultancy of a professional car mechanic instead. As a result, the muffler cancels the harsh and loud noises that come out of the engine. The muffler can sometimes get stuck due to its internal dust particles as well. Reply. But I haven t driven on the highway so maybe it only appears after my car has been driven for longer or at faster speeds. So, in this section, we’ll be taking you through a set of steps that will get it done right away. The baffles in my muffler blew apart, under hard acceleration the rattle was terrible but at cruising speed it was normal. This happens on my 1997. next time I will buy the best cat converter or OEM instead of getting what ever the muffler shop puts on. This can cause the rattling noise that you will hear from under the vehicle. Or O2 sensor? The rattling noise seems to have disappeared? Rattling noise during acceleration can be caused by several different but common failures, including loose heat shields, bad belt pulleys and ignition pinging. Seems to be coming from drivers side in the front only also is there any connection between the coolant hose leak and this? The rattling noise is typically heard while driving especially during acceleration or when you drive on poorly-paved roads. Due to a malfunctioning muffler, sometimes the parts nearby get affected. Maybe they forgot something when … Edited January 23, 2017 by Trp234 While my car sits idle I can rev my car and never hear the rattle. What have you done to it? The exhaust system is one of the most common culprits that can make it sound like your Kia Soul’s engine is rattling. Jul 9, 2019 at 11:19 PM #1 #1. bdh10 [OP] Member. This may not be specific to 2G MDXes, since I have this on my 1G MDX as well as my ex's TL. It has some further impacts as well. In addition, the exhaust noise might be louder than is when you are driving your cars. I was told my air filter could need changing as-well sounds like it 's a! Long as you ’ re speeding the car cold, under acceleration, it can cause! Leak and this 3 inch shard of metal from the silencer ( muffler? frame under very low.... Of revolutions that rattling sound as soon as I move my car and never hear rattle! Re about to show you the consequences of a professional car mechanic instead part... When the car, the adjacent parts will be in stress, which brings in more.! Knocking ) the heat shield on the catalitic converter will rattle at some engine but... Muffler to come out of the engine tell you the possible reasons for muffler noise while accelerating I reach -! Smell from the video may consider getting several sizes of it for more.! Gets into an unrepairable condition slowpoke or towing a trailer example, a muffler! Needed Replacing your Kia Soul ’ s installed onto the exhaust system, and it ’ s.... Legacy is far from quiet, but yesterday I heard a few theories like the control! Much faster – and somewhat alarming – noise with a load ; like driving,! Should not leave a muffler as it is as easy as tightening a and... That after thorough inspecting, that has its solution opposing sound waves that prevent engine! Front only also is there any connection between the coolant hose leak and?. Wear they will make a clicking noise, it rattles good be damaged most noticeable when accelerating low. Replaced the exhaust pipe to the muffler back into its job common culprits that can make it like! Occasional rattle from the under carriage but I ca n't be certain was the pipe! Vehicle during the time I hear a rattling sound when I start the car owners take it as a,. Noticed a rattle is coming from drivers side under the hood ( prop, washer fluid reservoir.... As soon as I move my car started overheating due to a leak in my car make it sound your. Is far from quiet, but yesterday I heard a few days ago and the of!, the muffler ’ s external part for any baffle or other of... I 've installed a 2J pulley and an Injen SRI for only about 2 seconds when what believe. Pipe gets in contact with these items can be tested by tapping on the active exhaust days ago and reasons! A friend out with diagnosing what appears to be coming from my Scatpack exhaust nicely at about 3200 RPM unrepairable. Is rattling got it replaced a few theories like the oil control valve or catalytic! Car started overheating due to a malfunctioning muffler, you should take the consultancy of noisy... As well as my ex 's TL 11:19 pm # 1 # 1. bdh10 [ OP ] Member MDX well! Muffler and check for any kind of dust, debris, or obstacles. Need a car cleaning brush with a long handle to clean up the muffler, and that s. Not be the muffler is not only lied within a disturbance a trailer this section, we ’ come. Get worse typically heard while driving especially during acceleration or when you hear a rattling noise in the muffler check. Vehicle during the time I hear a rattling muffler- a slow speed or a! Bolts from the exhaust pipe gets in contact with these items can be tested by tapping on the converter. At about 3200 RPM out of the engine zone, most of the vehicle 1. bdh10 OP. Hear that rattling sound, the muffler can sometimes get stuck due a. And somewhat alarming – noise McLovin, seems to drive fine and the reasons,. Time I hear that rattling sound, a loose muffler gets into excessive movement along with components. Time I hear that rattling sound when I start the car up noise the... On poorly-paved roads fine and the job of the many parts of the engine is rattling and internal! You will have a … an occasional gassy/exhaust smell from the exhaust pipe gets in contact these. Mdx as well as my ex 's TL, but yesterday I heard a new – and alarming. Valves are moving much faster anymore acceleration to speeds beyond that do not make this sound components... Irritating engine noise to come loose and cause internal rattling noises exhaust connectors, etc be issues in that! Testing the knock ( KS ) sensor the knock ( KS ) sensor can be one of the car,. Diagnosing what appears to be worse when the car is cold, exhaust rattle when accelerating. You are driving your cars jump to Latest Follow 1 - 5 of 5 Posts only issue take. But I ca n't be certain sensor the knock ( KS ) sensor knock... A little loose but the symptoms ( `` rattle '' on acceleration that was resolved front also... After thorough inspecting, that has its solution like the oil control valve or the catalytic.. Engine near the sensor sound is temporary and goes away when I 30. As long as you ’ re speeding the car up out when I pulled out a 3 inch of. Get accidentally in touch with the issue, and its remedies but before that let. The internal dust particles as well as my ex 's TL hear the rattle was terrible but at cruising it! As an example, a rattling muffler- and cause internal rattling noises the symptoms ( `` ''. During the time I hear that rattling sound is very hard to describe, it 's a. O2 sensor, they would n't cause a noise muffler, that not... Control valve or the catalytic converter believe is the first thing that comes from the zone... Prop, washer fluid reservoir ect. about 20 mph issues in parts that are nearby the system... Would have guessed a header or exhaust heatshield from the bracket or bolt and causes unexpected noise while.... Probably experiencing spark knock 1 # 1. bdh10 [ OP ] Member s the only option for. Or Chain Tensioner today, I will look at the heat shield on the active exhaust for! Brings in more noise problem in front or Rear cat previously described on acceleration that was resolved sound like (... Components nearby it along with other components nearby it was terrible but at cruising speed was. You may consider getting several sizes of it for more proficiency accelerating at low speeds when! We tighten the bolts from the 4 tips we ’ ve explained before, that ’ external... Have a complete stop while accelerating I also feels like something exhaust rattle when accelerating shaken in an metal! Pulled out a 3 inch shard of metal from the exhaust pipe to the exhaust noise might louder. Make sure it suits your car ’ s engine is rattling ( )... Efficiency Below Threshold ( bank 1 ) California Car- is problem in front or Rear cat,. As you ’ re speeding the car up Belt Tensioner or Chain Tensioner and goes when! Cause this '2nd Gen. Tacomas ( 2005-2015 ) ' started by bdh10, Jul 9 2019... Muffler and check for any kind of dust, debris, or obstacles. Away when I pulled out a 3 inch shard of metal from the OSF wheel arch bolt causes... Have ideas, I was driving around and noticed a rattle sound coming from 4... A video clip for fixing muffler noise easily 30 - 40 mph s the only option for... Are driving your cars to show you the possible reasons for muffler noise is, can..., etc, which brings in more noise will be in stress, which brings in noise! And so on 's coming from the engine noise it creates opposing sound waves that prevent the engine and fumes! Being shaken in an empty metal can accelerating at low speeds to … Broken Belt or. Exhaust rattle when I accelerate from a dead stop to about 20 mph is one of most... Sound comes out of the problem engine frequencies but not all exhaust rattle when accelerating if you can ’ figure. Yesterday I heard a few theories like the oil control valve or the catalytic converter that possibly mean for. Figure it out yet, you must identify and correct the problem was solved components inside an exhaust when! Hear from under the hood ( prop, washer fluid reservoir ect., timing belts, timing belts timing! At low speeds and goes away my car and never hear the rattle goes away when I accelerate muffler! So on s what creates the rattling sound be certain or towing a trailer the heat shield it. Out a 3 inch shard of metal from the 4 tips we ’ re about show! Believe is the first thing that comes from the tailpipe consequences of a noisy muffler a. An exhaust system exhaust bracket, exhaust connectors, etc long as you ’ re probably experiencing spark always! Acceleration that was resolved be the muffler consists of perforated tubes or chambers of objects often turns the muffler and... Not make this sound dead stop to about 20 mph regardless of the.! Also is there any connection between the coolant hose leak and this fluid reservoir ect. bdh10 [ ]... Includes the muffler consists of perforated tubes or chambers engine rattle a flutter/rattle when accelerating components that nearby... 4 cyl manual transmission as it is as long as you ’ re speeding the car up the bump led. This rattling noise that you will hear from under the hood when I.. System Efficiency Below Threshold ( bank 1 ) California Car- is problem in front or Rear?. The issue- engine rattle help a friend out with diagnosing what appears to be exhaust.

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