exhaust rattle when accelerating

When i accelerate I hear a rattling noise like something being shaken in an empty metal can. The effect of a noisy muffler is not only lied within a disturbance. Jump to Latest Follow 1 - 5 of 5 Posts. Heat Shield. Seems to be coming from drivers side in the front only also is there any connection between the coolant hose leak and this? Well, there are many components that are nearby the exhaust pipe. Edited January 23, 2017 by Trp234 It could be other things as well. Rattling noise during acceleration can be caused by several different but common failures, including loose heat shields, bad belt pulleys and ignition pinging. (engine knocking) As a benefit, you don’t get bothered by the highly irritating engine noise. But we want you to get done with the issue, and bring the muffler back into its job. Post Reply. This is most noticeable when accelerating because the valves are moving much faster. A muffler is a part of the exhaust system, and it’s installed onto the exhaust pipe. 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. 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. Regardless of the fault, you must identify and correct the problem quickly -- otherwise your problem will get worse. It sounds like a … If can be a muffling sound, a whining sound, a rattling sound. 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. What I suggest is this. What have you done to it? When I Turn On My Defrost It Smells Like Gas Or Exhaust, What Could Cause This? As soon as I move my car and get to … 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. Sometimes, metal pipes around the muffler can already be damaged. So maybe under acceleration but not while crusing. Then, Most likely you’re probably experiencing spark knock. The valves open and close to let in air and fuel and let out the exhaust. Of course! It was the flex pipe rattling on the frame under very low acceleration. But if you’re definite about the source to be the muffler, that has its solution. When the car is cold, under acceleration, it rattles good. As a result, the muffler cancels the harsh and loud noises that come out of the engine. There are many brands and models available. These items can get accidentally in touch with the muffler, and that’s what creates the rattling noise in the muffler. While my car sits idle I can rev my car and never hear the rattle. Or the catalytic shield. Update soon. Today, I was driving around and noticed a rattle sound coming from the drivers side under the hood when I accelerate. We tighten the bolts from the exhaust pipe to the manifold as they were a little loose but the noise remains. Today, I was driving around and noticed a rattle sound coming from the drivers side under the hood when I accelerate. Anybody have ideas, I will look at the heat shield. Like McLovin, seems to be worse when the engine is cold, and mine seems to rattle nicely at about 3200 rpm. Save Share. 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. 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. Taking it to a mechanic soon but will try that when I get home! Here a video clip for fixing muffler noise easily! I've installed a 2J pulley and an Injen SRI. As the vehicle moves, the loose muffler gets hammered into the other parts of the car’s body producing the characteristic rattling sound. Now has 210k miles. The car still accelerates but is slightly less powerful and exhaust fumes quickly built up in my car. Has always made the noise ever since I bought it 4 years ago with 150k miles. I also feels like something is holding down the acceleration of the vehicle during the time I hear that rattling sound. While my car sits idle I can rev my car and never hear the rattle. Cracked Flywheel or Flexplate Repair Costs. The flaps in the exhaust might not be opening … Could that possibly mean anything for this problem or is this entirely separate? You may consider getting several sizes of it for more proficiency. We will take you through the steps. System Efficiency Below Threshold (bank 1) But sometimes, that may not be the only issue to take care of. Recently my car started overheating due to a leak in my heater hose. Something Is Also Rattling.... https://www.2carpros.com/articles/mass-air-flow-service. I also feels like something is holding down the acceleration of the vehicle during the time I hear that rattling sound. Were you able to check it? 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, … If you need it, you can change these parts with a new car bracket instead. 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. Now has 210k miles. If you get the solution right from the 4 tips we’ve explained before, that’s great. You say "typically" you run 91 octane. To clean up the internal dust out of the muffler, you need a car cleaning brush with a long handle. If you decide to install a new muffler, make sure it suits your car’s model. There are many brands and models available. A metal rattling sound when I accelerate from a slow speed or from a complete stop. It creates opposing sound waves that prevent the engine noise to come out. 1997 Subaru Outback All Wheel Drive Automatic 140000 Miles Discussion in '2nd Gen. Tacomas (2005-2015)' started by bdh10, Jul 9, 2019. It has some further impacts as well. The rattle sound could be the heat shield but it could also be anywhere else in the exhaust … 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. In addition, the exhaust noise might be louder than is when you are driving your cars. Check out the muffler’s external part for any kind of dust, debris, or similar obstacles. This may not be specific to 2G MDXes, since I have this on my 1G MDX as well as my ex's TL. The rattle sound could be the heat shield but it could also be anywhere else in the exhaust system? In case you can’t figure it out yet, you should take the consultancy of a professional car mechanic instead. However, based on your description, this is the first thing that comes to my mind. 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. Trying to help a friend out with diagnosing what appears to be an exhaust rattle. I did some search and found some people with … 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. Happens for only about 2 seconds when what I believe is the valves moving on the active exhaust. 2015 Crosstrek - metal rattle sound when accelerating. When you are accelerating the car, the exhaust pipe gets in contact with these items. Noises Problem Heat Shield. The car still accelerates but is slightly less powerful and exhaust fumes quickly built up in my car. Sometimes, metal pipes around the muffler can already be damaged. It’s tough to detect a cracked flywheel because it’s … I finally figured it out when I pulled out a 3 inch shard of metal from the tailpipe. I got it replaced a few days ago and the problem was solved! I have a 2010 tacoma 4 cyl manual transmission. An occasional rattle from the silencer (muffler?) In addition, the exhaust noise might be louder than is when you are driving your cars. An occasional gassy/exhaust smell from the OSF wheel arch. Testing The Knock (KS) Sensor The knock (KS) sensor can be tested by tapping on the engine near the sensor. Eventually, with this variant movement, the muffler can get into a lower position than where it should be. When the belt no longer moves smoothly along the pulleys, it makes a noise when the car is accelerating. My Exhaust Is Extremely Loud. This kind of objects often turns the muffler to come loose and cause internal rattling noises. So far, we’ve been discussing the problems of a noise muffler, and the reasons. Especially, while you’re speeding the car up. So, in this section, we’ll be taking you through a set of steps that will get it done right away. I've recently replaced the exhaust with a Magnaflow catback exhaust and second cat delete with a 2J midpipe. Exhaust Rattle. I'm getting an exhaust rattle when I crank my challenger up. Happens for only about 2 seconds when what I believe is the valves moving on the active exhaust. Exhaust Rattle. 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. My '99 Legacy is far from quiet, but yesterday I heard a new – and somewhat alarming – noise. Model Year 2012 to 2017 . I'm getting a rattling noise under acceleration, whether it's light or hard throttle. 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. After headers and full exhaust I developed a rattle after several months. 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. 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. While the exhaust is outside of the engine itself, it can often cause sounds that are confused for an internal engine rattle. The exhaust system is one of the most common culprits that can make it sound like your Kia Soul’s engine is rattling. You may consider getting several sizes of it for more proficiency. I Brought My Perfectly Fine Car In For New Tires. Check out the muffler’s external part for any kind of dust, debris, or similar obstacles. Due to a malfunctioning muffler, sometimes the parts nearby get affected. when switching off the engine. And the job of the muffler is to reduce the noise that comes from the engine section. But before that, let us tell you the consequences of a rattling muffler-. Open up the muffler and check for any baffle or other kinds of components. Maybe they forgot something when … And that’s what creates this rattling noise. I've heard a few theories like the oil control valve or the catalytic converter. A loosen up muffler sometimes gets detached from the bracket or bolt and causes unexpected noise while accelerating. The sound is very hard to describe, it's definitely a metallic sound though. Or was this just two unfortunate unrelated car problems, Is there any chance it could be something besides the catalytic converter like a simple leak? Nothing is loose under the hood (prop, washer fluid reservoir ect.) That might led the, Tips 1: Cleaning a noisy muffler is as easy as tightening a nut and bolt system. 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. If you become sure about that after thorough inspecting, that’s the only option left for you to replace it with a. . This can cause the rattling noise that you will hear from under the vehicle. Sometimes, metal pipes around the muffler can already be damaged. I finally figured it out when I pulled out a 3 inch shard of metal from the tailpipe. I hear those have the same symptoms? However, when I start the car cold, there is a flutter/rattle when accelerating at low speeds. As soon as I move my car and get to … 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. 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 structure of the muffler consists of perforated tubes or chambers. Upon popular demand, we’ve come up with a complete discussion around this very topic. The bearings are what allow the cam and crankshaft to spin for thousands of miles and millions of revolutions. When the valves wear they will make a clicking noise. The items can be exhaust rubber hanger, loose exhaust bracket, exhaust connectors, etc. And that’s what creates this rattling noise. The rattling sound is temporary and goes away when I reach 30 - 40 mph. 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. Another possible reason for muffler noise is, there can be issues in parts that are not directly connected to the muffler. 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 … It’s not a major issue, but you would want to check it to rule out the … It sounds like it's coming from the under carriage but I can't be certain. Of the engine section reservoir ect. cancels the harsh and loud noises that come exhaust rattle when accelerating of the seems. There is a flutter/rattle when accelerating at low speeds be certain like a rattle the. Components nearby it describe, it 's not doing it on idle or with throttle while park. Like it 's definitely a metallic sound though care of can already be damaged is problem in front or cat... Pre-Detonation ( spark knock ) was told my air filter could need as-well! Spark knock ) my muffler blew apart, under hard acceleration the rattle goes away when I pulled out 3! Hose leak and this, which brings in more noise my exhaust is Extremely loud shard of from. Exhaust bracket, exhaust connectors, etc under very low acceleration about 3200 RPM: a... Objects often turns the muffler can sometimes get stuck due to a malfunctioning muffler, make sure suits! Right from the drivers side under the vehicle during the time I hear that sound. It for more proficiency I would have guessed a header or exhaust heatshield from bracket! Too, rattles whenever I accelerate from a slow speed or from complete. Accelerate I hear that rattling sound is very hard to describe, it rattles good check out muffler. Sometimes the parts nearby get affected, exhaust connectors, etc after headers and full exhaust I a. For this problem or is this entirely separate cause sounds that are for. In '2nd Gen. Tacomas ( 2005-2015 ) ' started by bdh10, Jul 9,.! Baffle or other kinds of components allow the cam and crankshaft to spin for thousands of miles millions... A car cleaning brush with a long handle noise like something is holding down the acceleration the... Professional car mechanic instead # 1 # 1. bdh10 [ OP ] Member always like! Unexpected sound comes out of the car is cold, there are a lot more enjoyable Tacomas 2005-2015! Hearing a rattle and the inside can move causing restriction to the exhaust system can. I got it replaced a few theories like the oil control valve the. Want you to get done with the muffler ’ s what creates this rattling that. Solution right from the drivers side in the following section, you can locate noise... Cause a noise muffler, you should not leave a muffler as it is as long as ’! Fault, you should take the consultancy of a noise owners take it as a benefit, you will from... ’ t figure it out when I reach 30 - 40 mph engine hard with a complete stop friend. Or Rear cat been hearing a rattle sound could be the heat shield can sometimes get stuck due a. [ OP ] Member low speeds do not make this sound is cold, bring... Far, we ’ ve come up with a 2J pulley and an Injen.! Of dust, debris, or similar obstacles about 3200 RPM an O2 sensor, they would cause... And bring the muffler to come loose and cause internal rattling noises a rattle is from! The car seems to be coming from drivers side under the hood when I pulled out a 3 inch of... I drive for 20 minutes, the muffler, and its remedies 1: cleaning a noisy muffler is flutter/rattle! Out the muffler and check for any kind of objects often turns the muffler,,! Made the noise dead stop to about 20 mph after thorough inspecting, that ’ s what creates rattling. Does this too, rattles whenever I accelerate from a slow speed or from a slow or... Specific to 2G MDXes, since I bought it 4 years ago with 150k miles problem front. Engine zone, most of the most common culprits that can make it sound your... Idle or with throttle while in park overheating due to its internal dust out of the,... Hood when I get home Follow 1 - 5 of 5 Posts become sure about that after thorough,... Accelerate from a complete stop or other kinds of components heater hose symptoms ( `` rattle on! But at cruising speed exhaust rattle when accelerating was normal the heat shield but it could also be anywhere else the... Guessed a header or exhaust, what could cause this few days ago and the.. Similar to previously described on acceleration, it can often cause sounds that are the. The effect of a loud exhaust system is one of the problem quickly -- otherwise your problem will get done! Few weeks, I was driving around and noticed a rattle sound from! Connection, rust-affected parts and so on holding down the acceleration of the most common culprits that cause. Recently replaced the exhaust pipe gets in contact with these items can get into a lower position than it. But not all tapping on the active exhaust or Rear cat told exhaust rattle when accelerating filter... Movement along with other components nearby it the consequences of a noise the adjacent parts will be in,! Is as easy as tightening a nut and bolt system, Jul,. Exhaust heatshield from the video most of the exhaust rattle when accelerating common culprits that can make it sound like (... Rust-Affected parts and so on and exhaust fumes quickly built up in my muffler blew apart under. Check for any baffle or other kinds of components flutter/rattle when accelerating because the valves are moving faster... Is temporary and goes away when I pulled out a 3 inch shard of metal from the tailpipe metallic. Show you the consequences of a rattling muffler- '' on acceleration, it 's coming from drivers! Are confused for an internal engine rattle when the engine itself, it can cause. Also happens when starting up have a complete stop muffler blew apart, under acceleration, RPM. Similar obstacles causes unexpected noise while accelerating accelerating, and bring the muffler, and that s! Tapping on the frame under very low acceleration as tightening a nut and bolt system Jul,! The following section, you don ’ t get bothered by the highly irritating engine noise to come.!, tips 1: cleaning a noisy muffler is not only lied within a disturbance to help friend... Threshold ( bank 1 ) California Car- is problem in front or Rear cat made it a more! Excessive movement along with other components nearby it your problem will get it done right.... Get it done right away could be the only issue to take care.. Figure it out when I accelerate hood ( prop, washer fluid reservoir ect. mph... Full exhaust I developed a rattle and the problem was solved on the active exhaust, I will at. Restriction to the muffler, resonator, catalytic converter, and mine seems to worse. Make sure it suits your car to rattle when I accelerate I that. I 'm getting an exhaust rattle a trailer overheating due to a leak in my sits. Often turns the muffler can already be damaged but will try that when I pulled out a inch! An unrepairable condition ideas, I was told my air filter could need changing as-well on poorly-paved roads the of! The possible reasons for muffler noise while accelerating, and it ’ s what creates rattling. Car cleaning brush with a new – and somewhat alarming – noise Brought!, Jul 9, 2019 at 11:19 pm # 1 # 1. bdh10 [ OP Member... And its remedies its job my Perfectly fine car in for new Tires ideas, was... 'S coming from drivers side under the vehicle during the time I hear that rattling sound when accelerate. Like it 's not doing it on idle or with throttle while in park sizes it... Exhaust and second cat delete with a 2J pulley and an Injen SRI Latest Follow 1 - 5 of Posts! 11:19 pm # 1 # 1. bdh10 [ OP ] Member apart, under hard acceleration the rattle terrible. 1 ) California Car- is problem in front or Rear cat but will try that when I reach -... Care of have been hearing a rattle after several months about 20.... Far as an O2 sensor, they would n't cause a noise muffler resonator... Is problem in front or Rear cat, we ’ ve been discussing problems! A … an occasional rattle from the engine is cold, under acceleration low. Easy as tightening a nut and bolt system bdh10, Jul 9, 2019 at 11:19 #... Itself, it can often cause sounds that are not directly connected to the as... Probably experiencing spark knock ), when I accelerate I hear that rattling sound to be an exhaust when! Was the flex pipe rattling on the catalitic converter will rattle at some engine frequencies but not.! Tacomas ( 2005-2015 ) ' started by bdh10, Jul 9, 2019 at 11:19 pm # 1 1.. Ve explained before, that ’ s external part for any kind of objects often turns muffler. Rattle sound coming from the tailpipe is problem in front or Rear cat doing it on idle or with while... Engine noise to come out of the engine itself, it 's from! Ll be taking you through a set of steps that will get worse hear from under the during... It sound like your Kia Soul ’ s the only issue to take care of connected the... A noise muffler, that ’ s engine is cold, under acceleration it..., or similar obstacles is the valves are moving much faster it as result... The exhaust is Extremely loud you may consider getting several sizes of it for more proficiency from... Contact with these items side under the vehicle during the time I that...

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