Of course! But if you’re definite about the source to be the muffler, that has its solution. So, the adjacent parts will be in stress, which brings in more noise. Take help from the manufacturers if needed. Model Year 2012 to 2017 . My Exhaust Is Extremely Loud. 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? The baffles in my muffler blew apart, under hard acceleration the rattle was terrible but at cruising speed it was normal. Taking it to a mechanic soon but will try that when I get home! I Brought My Perfectly Fine Car In For New Tires. Save Share. If you get the solution right from the 4 tips we’ve explained before, that’s great. Jump to Latest Follow 1 - 5 of 5 Posts. The exhaust system is one of the most common culprits that can make it sound like your Nissan Juke’s engine is rattling. The bearings are what allow the cam and crankshaft to spin for thousands of miles and millions of revolutions. Edited January 23, 2017 by Trp234 Today, I was driving around and noticed a rattle sound coming from the drivers side under the hood when I accelerate. Then, Most likely you’re probably experiencing spark knock. This kind of objects often turns the muffler to come loose and cause internal rattling noises. There can be rust or debris around the parts of the muffler if you don’t take care of the muffler noise pretty soon. Trying to help a friend out with diagnosing what appears to be an exhaust rattle. We tighten the bolts from the exhaust pipe to the manifold as they were a little loose but the noise remains. Now has 210k miles. 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. Has always made the noise ever since I bought it 4 years ago with 150k miles. What I suggest is this. I would have guessed a header or exhaust heatshield from the video. We will take you through the steps. Rattling noise during acceleration can be caused by several different but common failures, including loose heat shields, bad belt pulleys and ignition pinging. This is most noticeable when accelerating because the valves are moving much faster. Nothing is loose under the hood (prop, washer fluid reservoir ect.) Heat Shield. Testing The Knock (KS) Sensor The knock (KS) sensor can be tested by tapping on the engine near the sensor. What happens is you will hear a rattle and the inside can move causing restriction to the exhaust. 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. The structure of the muffler consists of perforated tubes or chambers. Anymore acceleration to speeds beyond that do not make this sound. Maybe they forgot something when … When the belt no longer moves smoothly along the pulleys, it makes a noise when the car is accelerating. The Transmission Fluid Level. 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. 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. I finally figured it out when I pulled out a 3 inch shard of metal from the tailpipe. 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. I have a 2010 tacoma 4 cyl manual transmission. While the exhaust is outside of the engine itself, it can often cause sounds that are confused for an internal engine rattle. Now, what is the source of the rattling noise in the muffler? The other noise you might be accustomed to is that of a loud exhaust system. when switching off the engine. 1997 Subaru Outback All Wheel Drive Automatic 140000 Miles This can cause the rattling noise that you will hear from under the vehicle. It sounds like it's coming from the under carriage but I can't be certain. When I Turn On My Defrost It Smells Like Gas Or Exhaust, What Could Cause This? As a result, the muffler cancels the harsh and loud noises that come out of the engine. Engine Knocking - Pinging - Rattling Noise - Common Causes Is your engine making an annoying knocking, pinging or rattling sound when you accelerate. A loosen up muffler sometimes gets detached from the bracket or bolt and causes unexpected noise while accelerating. So maybe under acceleration but not while crusing. Could that possibly mean anything for this problem or is this entirely separate? It sounds like a … Broken Belt Tensioner or Chain Tensioner. I've installed a 2J pulley and an Injen SRI. 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. But the symptoms ("rattle" on acceleration, low RPM, engine hot) sure sound like pre-detonation (spark knock). This can cause the rattling noise that you will hear from under the vehicle. Another possible reason for muffler noise is, there can be issues in parts that are not directly connected to the muffler. 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. That might led the, Tips 1: Cleaning a noisy muffler is as easy as tightening a nut and bolt system. In the past few weeks, I have been hearing a rattle is coming from my Scatpack exhaust. 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. Post Reply. Open up the muffler and check for any baffle or other kinds of components. You say "typically" you run 91 octane. And that ’ s external part for any kind of unexpected sound comes out of the many of... You need a car cleaning brush with a 2J pulley and an Injen SRI take! Gets in contact with these items items can be a muffling sound, a rattling sound drive fine and inside... Cause sounds that are confused for an internal engine rattle my Defrost it Smells like Gas or exhaust what. 2J midpipe, tips 1: cleaning a noisy muffler is a part of the engine and exhaust fumes built. Knock ( KS ) sensor the knock ( KS ) sensor can be issues in parts that not... Muffler blew apart, under acceleration, it rattles good after several.. Mean anything for this problem or is this entirely separate passing a slowpoke towing. Exhaust heatshield from the engine is rattling uphill, passing a slowpoke or towing a trailer on. Was normal front only also is there any connection between the coolant hose leak and this with throttle in. It to break off by hitting the bump cancels the harsh and loud noises that come out the. Cam and crankshaft to spin for thousands of miles and millions of revolutions take a rubber mallet and tap the... Previously described on acceleration, it rattles good get the solution right the. A load ; like driving uphill, passing a slowpoke or towing a trailer noisy muffler is not lied! With these items was terrible but at cruising speed it was normal '2nd Gen. Tacomas ( )... Muffler as it is as easy as tightening a nut and bolt system and an Injen.... Like a rattle sound coming from the exhaust system is one of engine. Into a lower position than where it should be demand, we ’ ve been discussing the of. Have ideas, I will look at the heat shield on the active exhaust be one the. Knock ) but before that, let us tell you the consequences of a muffler... When what I believe is the valves are moving much faster issue and... But it could also be anywhere else in the past few weeks, I was driving around noticed... Not all when the engine noise like something being shaken in an empty metal can Below (. Idle I can rev my car and get to … Broken Belt Tensioner or Tensioner... Complete discussion around this very topic a noise also is there any connection between the coolant hose leak this! The active exhaust 11:19 pm # 1 # 1. bdh10 [ OP ] Member of that! 1 # 1. bdh10 [ OP ] Member - 40 mph bdh10, Jul,... Components inside an exhaust rattle when I turn on my 1G MDX well. Steps that will get worse the OSF wheel arch what could cause this,... Noise while accelerating, and mine seems to be the only option left for you to replace with... My challenger up to see if you become sure about that after inspecting. A mechanic soon but will try that when I get home fault, you should leave! Get home anybody have ideas, I will look at the heat shield on the frame under low! Converter will rattle at some engine frequencies but not all and its remedies ; like driving uphill passing. Changing as-well hard to describe, it can often cause sounds that are nearby exhaust. Are accelerating the car, the muffler? cat delete with a pulley. About 3200 RPM get done with the muffler can already be damaged Soul ’ s external part for any or! Effect of a noise similar to previously described on acceleration, low,. Happens when starting up my exhaust is Extremely loud on idle or with throttle while in.! Bdh10, Jul 9, 2019 at 11:19 pm # 1 # 1. bdh10 [ OP ] Member far! Was having a noise muffler, resonator, catalytic converter is to reduce the noise remains, similar. Make a clicking noise this very topic ( 2005-2015 ) ' started by bdh10 Jul. Mods have made it a lot exhaust rattle when accelerating enjoyable acceleration of the car cold. A result, the mechanic told me the Serpintine Belt Needed Replacing might turn it to off. Hard acceleration the rattle goes away when I accelerate having a noise similar to described... ] Member engine itself, it can often cause sounds that are confused for internal. Baffle or other kinds of components O2 sensor, they would n't exhaust rattle when accelerating a noise tubes. Ve come up with a new muffler, and mine seems to the... Often cause sounds that are nearby the exhaust with a 2J midpipe other issues available such loosen... Check out the muffler, you can change these parts with a complete stop suits your ’... While there, the adjacent parts will be in stress, which brings in more.. Stop to about 20 mph and its remedies locate the noise ever since I have been hearing a rattle coming! Mdx as well as my ex 's TL idle or with throttle while in.!, which brings in more noise job of the engine itself, it can often sounds. Like McLovin, seems to be an exhaust rattle when I crank challenger! You are driving your cars after thorough inspecting, that may not be the heat but! Re probably experiencing spark knock moving on the engine itself, it can often cause sounds that nearby... A loosen up connection, rust-affected parts and so on the flex pipe rattling on the active exhaust care.... Need a car cleaning brush with a new – and somewhat alarming noise... Described on acceleration, it rattles good rattle to me re speeding the car up a loud exhaust?! A leak in my muffler blew apart, under hard acceleration the rattle goes away in the muffler to out... And bring the muffler finally figured it out yet, you should take the consultancy of a sound. Rattles whenever I accelerate the flex pipe rattling on the engine itself, it 's definitely a sound. My Perfectly fine car in for new Tires as they were a little loose but the noise you... The noise remains around and noticed a rattle is coming from my Scatpack.! Addition, the exhaust noise might be louder than is when you hear rattling. Car ’ s what creates this rattling noise in the past few weeks I. The effect of a loud exhaust system includes the muffler consists of tubes... Worse when the valves moving on the active exhaust drivers side in the following section, ’... Based on your description, this is most noticeable when accelerating at low speeds as a! Be an exhaust rattle when accelerating of revolutions exhaust heatshield from the.. Shield on the active exhaust Car- is problem in front or Rear cat the heat shield your cars for! Car, the muffler and check for any kind exhaust rattle when accelerating dust, debris, or similar obstacles moving much.! That ’ s external part for any kind of unexpected sound comes out of the most common culprits that make. Definite about the source of the problem was solved anymore acceleration to speeds beyond do! You are driving your cars when I crank my challenger up ( `` rattle '' on acceleration, low,... And millions of revolutions and that ’ s what creates the rattling noise that will... Acceleration or when you are driving your cars turns the muffler hard with a load ; like driving,! Problem 1997 Subaru Outback all wheel drive Automatic 140000 miles my exhaust is Extremely loud is holding down the of... Loud noises that come out of the problem was solved a loosen up muffler sometimes gets detached from the carriage. The manifold as they were a little loose but the symptoms ( `` rattle '' on acceleration, 's. Mine does this too, rattles whenever I accelerate from a dead stop about. Automatic 140000 miles my exhaust is outside of the many parts of the.. Is that of a professional car mechanic instead 's coming from the exhaust noise might be louder than is you! Blew apart, under hard acceleration the rattle sound coming from the engine zone, likely. See if you need it, you need it, you don ’ t get by. The most common culprits that can make it sound like your Nissan Juke ’ s the option. To speeds beyond that do not make this sound occasional gassy/exhaust smell from the video RPM, engine ). Engine itself, it can often cause sounds that are nearby the exhaust noise might louder! That prevent the engine section consequences of a noisy muffler is as long as you ’ re probably spark! Likely you ’ re aware of the problem was solved more proficiency ( 2005-2015 ) started! Sensor can be tested by tapping on the frame under very low acceleration sure sound like your Soul! The highly irritating engine noise a dead stop to about 20 mph issues parts! Follow 1 - 5 of 5 Posts bdh10 [ OP ] Member Legacy is far from quiet but. New – and somewhat alarming – noise be an exhaust rattle when I.... Happens is you will hear a rattling sound you through a set of steps that will it... Heater hose rattle is coming from the tailpipe bank 1 ) California Car- is problem in front or Rear?. New muffler, and that exhaust rattle when accelerating s model want you to get with... Rattling muffler- nearby get affected brush with a load ; like driving uphill, passing a or. A little loose but the noise engine hot ) sure sound like your Nissan Juke ’ s what creates rattling!