Exhaust Leak Sound When Accelerating

Seems like an exhaust leak on the left side only when I first accelerate then at about 2500 rpm I don't here it. The exhaust gases are an old school way to detect symptoms of problems i. You could have a bad manifold gasket or maybe just a hole from rust, you never know. large amounts of black smoke may mean the EGR is blocked and it's over-fueling. Maybe I am just being paranoid. Any ideas? Leak in exhuast manifold? spark plug issue? It is a 2007 crew cab 4x4. Still clicking!. Hello everyone, my car makes noise again. It started this morning: When I accelerate, my car sounds like a muffled lawn mower. One of the most common dilemmas that occur in the auto repair industry is the exhaust leak. Learning about them should help you diagnose the problem faster and put an end to it. Re: Problem with écho sound exhaust leak Imma make this very simple, having a leak up front can get fums in the cab, any exhaust leaks should be fixed. Let me get to the current issues i am having trouble with. can anyone tell me if this is normal with a. The fact that it happens only when you accelerate hard leads me to believe it's simply an exhaust leak somewhere. Could it be the exhaust manifold? How do I check it? It looks like it has a newer gasket. Exhaust is not a constant "flow". Re: Engine noise after replacing spark plugs. the sound is at the back of the intake manifold it has a cross over pipe with a wire mesh. Heres the issue: the engine makes a 'whoooooshing' sound when accelerating slightly hard, normal acceleration is fine - it sounds like a burst of wind noise which is what i thought it was, but its definately not that as iv tested it many times now. The first sign of an exhaust leak is often heard. It blows out gray or white smoke when I hit the gas not sure if I’m at a standstill. When you have a low level of oil in your engine, this will cause the components of the valvetrain to cause ticking sounds because the components are not being lubricated enough. Overheating, severe coolant loss, maybe oil loss, white exhaust smoke, etc. Doesn't sound like an exhaust leak. And the deeper the noise, the larger the leak is. Usually, the smoke that gets emitted is black, white, grey and blue. It has to be removed to check for any cracks. Could be a vacuum leak, check the MAP sensor especially. The engine runs smoothly, no rattling, no performance issue whatsoever. that you remove while replacing the manifold gaskets. Foxacuraofelpaso. Now, I understand this can be either a lean or rich condition at throttle lift where un-burned fuel collects and ignites in the exhaust system. I may need a new one. Loud sound when you accelerate in your car? 5 6 7. Since you describe the sound as that of a race car, I'm quite confident it is your exhaust pipe(s). Turned out to be an exhaust leak on my exhaust manifold where it meets the head. Exhaust leaks located beyond the catalytic converter may sound more like a hissing noise. i can be moving however fast in neutral and rev it and it sounds fine. Turbochargers are often blamed for being noisy when in fact it can often be an exhaust gasket vibrating between 2 faces. An exhaust leak. It's not a whistle of a traditional vacuum leak, and it's not a "roar" like a big exhaust leak. Heres the issue: the engine makes a 'whoooooshing' sound when accelerating slightly hard, normal acceleration is fine - it sounds like a burst of wind noise which is what i thought it was, but its definately not that as iv tested it many times now. That patch came off all of a sudden with kind of a bang. I took my 2007 4x4 Tundra for 75k scheduled service and dealer ship did the air pump replacement 9both) at no charge. Popping sound when accelerating 7 Answers. Any ideas on the surging and air leak sound? Are they related possibly?. Here's the easy way to determine if a vacuum leak is causing the problem. These loosen up over time on these inline motors due to their reverse-flow design. Simplest thing for you would to take car into a fast fit centre and get a free check over and report. After that I have had a hissing sound that is directly tied to the acceleration of the car. ok so im pretty sure my DV was replaced just about a month ago, maybe a little long, also the PCV, but now im not sure if the DV was replaced, because im getting a whistle sound when accelerating fast and in high rpms only. Some days bad, like today, and other days no noise at all. what u think?i just had the y pipe and new up tubes. The video noise sounds to me like an exhaust leak IF the truck were at idle. If it’s not a belt as mentioned above then a leak in the intake or exhaust could cause whistling. 9 engine and a 1998 dodge Ram Passenger Van 3500 also 5. Realizing that the shaft seal was probably letting a drop or 2 of water through from time to time, I planned on changing the pump since this type of leak is bad for the pump bearings. also for me i got a new full turbo back exhaust so i know there is no leaks on that end. Engine Noise Diagnosis 101. How do I know the difference between a lifter ticking and an exhaust leak noise? In other words, if it is an exhaust leak, what evidence am I looking for? Will I be able to see the hole or can it be pinhole size?. My best guess is that I have an exhaust leak somewhere near the exhaust manifold, but it is hard to tell. The noise is louder/more pronounced when the engine is under load (accelerating in gear) than when I rev it in park. Check the manifold bolts for tightness. For the last few months my Jeep has been idling a little heavy. If it does, then it is more likely to be rocker arms, pushrods, lifters, camshaft, cam bearings, timing chain and gears. But if you hit it hard, it sounds like a big leak in the air cleaner housing - kind of a muted "whoosh" sound along with the normal engine noise. If you're questioning what is normal engine noise, I may have the answer. My VW currently has an exhaust leak and that's exactly what it sounds like. 4 v8 Triton engine; it's always made a tapping/ticking sound when it idols. It is not uncommon one or both of the exhaust manifolds to crack resulting in an exhaust leak. The exhaust place kept it for a day and a half, welded a small unrelated leak near a catalytic converter for free, and said they couldn't figure it out either. com Forums what's new (beta) - classifieds - forums - photos. 1997 Dodge Ram Truck A/C Stops Blowing When I Accelerate. Simplest thing for you would to take car into a fast fit centre and get a free check over and report. so i dissasembled the whole system again, went over all of my welds, checked for cracks, and pressure tested with water. I'm still wondering if there might be any other components that could cause a noise during acceleration. The video noise sounds to me like an exhaust leak IF the truck were at idle. Regardless of what the undermining cause is, get your vehicle to an auto body shop as soon as you notice that it loses power when accelerating. Hook the timing light to any one cylinder and watch the flash illuminate the timing mark. My Dad finally got to hear the ticking noise, he thinks the issue is an exhaust leak and that noise is just being caused by it. Our '18 ESV Platinum has a great engine sound. When I shift, the noise dies until I speed up for a second or 2. The symptoms of an exhaust leak may include a louder than normal exhaust sound, the sound of exhaust coming from unusual places on your car, a "ticking" noise when accelerating, and the smell of exhaust. The exhaust manifold is on the side (or sides) of your engine toward the bottom. and it is really loud aswell, people definitely hear it and it sounds terrible. Or, it can be pleasing in the case of a high performance vehicle with a throaty growl when it accelerates. The exhaust system consists of more than just a muffler. When I started the engine cold, I looked under the hood and under the vehicle for a leak somewhere, and I could see exhaust steam coming from under the engine. That makes those loud race car noises that young male hot rod drivers like. If you would like to learn more about your exhaust system, keep reading. when i did seafoam i had a small exhaust leak on the pass side very small wasn't sure if it was a leak or things were getting burned off by the seafoam. If something came loose or broke, chances are there are more areas ready to fail. Try pushing on panels while accelerating. I dont seem to have any power problems or transmission slippage. if its a minor exhaust leak, chances are youll only hear it when the engine is under load. It is very noticeable when the engine is cold and quiets down after it warms up. I hear a 'leaky exhaust' kind of noise in the cabin of my toyota camry, no noise when outside d car. Loud noise coming from turbo. I have been under the car to look for leak in the exhaust but couldnt find any. My 96 dodge ram 1500 makes a sorta loud and really annoying clicking sound when ever i accelerate. The sound stops once speed attained. Exhaust leaks can cause serious trouble. The engine runs smoothly, no rattling, no performance issue whatsoever. Best Answer: This sounds like a problem in the exhaust system. Whats also weird is when i go over a bump, the noise goes with it. If you would like to learn more about your exhaust system, keep reading. I also have a noise what I think is coming from the engine when accelerating at slower speeds. He then took the injector off and the noise was gone. Car: 1981 BMW. Has sounded fine up till about 300-400 miles ago. You also probably have a single exhaust and the left exhaust crosses over to the right side and hence only one pipe connection. check under your car. Exhaust rattle noise - Refer to Exhaust Noise. The self test is for the Stabilitrack. Possible sources of air leaks are though a faulty gland seal, which is usually accompanied by a static water leak into the boat when standing idle. Only during accelerating did it make noise. A pinging noise on acceleration is a symptom of pre-ignition. It sounds like its from the front of the car. As soon as I release the pedal, the noise stops. Its actually unburnt air that is coming out of exhaust. Hello all I am getting a slight rasping sound when i accelerate in my Rover 25. can anyone tell me if this is normal with a. That was when the timing chain diagnosis came down. I got on it a couple times giving it about ½ pedal and I’m hearing a fast rattling/ticking sound under the hard throttle. Bad Fuel Efficiency - When there is an exhaust leak, the engine control unit cannot get an accurate reading from the sensors about how much oxygen is coming and going from the valves. I have a ticking noise coming from my 350 that is driving me crazy. I'm assuming it's a muffler or exhaust thing. Failed intake sensors -- throttle position, mass airflow, intake air temperature and manifold absolute pressure sensors included -- will often cause the computer to think there's less air going in than there really is. Loud, Sporty Sound When Accelerating A loud exhaust normally means a hole in either a pipe or a silencer box. Volume of Noise. It sounds like a exhaust leak to me. One common cause of an engine sputtering is a malfunctioning battery. Identifying Automotive Fluid Leaks Build and Price a New Car. Anyone Have Any Suggestions, ??. When I accelerate, there is a fast ticking noise that I hear. and let it be like that, last night on a underground parking zone the sound was very loud just afraid because some people say it was the catalytic converter, and others say it was torque converter noise. The common noise is a puffing noise and you can smell the exhaust fumes. I am thinking exhaust leak, but I took it to an exhaust shop and they said there was no indication of a leak. It's hard to describe but it's a low rumbling when the accelerator pedal is pushed. Nothing at Idle or after 2500. im thinking its a busted exhaust bolt,, exhaust leak? u think its the gasket making that whisle sound as it passes through the leak. The engine RPM should go up to around 1800 or so. It is only when accelerating form a stop. Whining Noise When Accelerating And Decelerating. Upon quick acceleration or when the transmission drops from overdrive to 4th gear it sounds like I have an exhaust leak or a excess exhaust pressure release opening. What Your Car Trying To Tell You By White Smoke From Exhaust White smoke from exhaust that looks like thin wisp is the topic for today. It could be the manifold or gasket. I'm hoping someone will be able to help me out here. The tech told me that my exhaust leak is coming from my exhaust manifold but warranty won t cover it. At first i just assembled using replacement gaskets. Thus far, the engine's performance seems to be fine. A hesitation or bog might be caused by a leak in your air intake. 1997-2006 Expedition & Navigator - Would an exhaust leak cause sluggish acceleration? - I have had a exhaust leak at the manifold end to the exhaust connection that has been getting worse and worse. I cleaned the throttle body the other day but still have the noise. Warrenty dealer (Thermo King) replaced filter/dryer and attaching pipe. It looks like the green line has a leak. Crawl under the truck and check out the bolts holding the sections of the exhaust system together, I bet its an exhaust leak. Do you have anymods such as a downpipe? Also does it happen all the time while accelerating or just feathering it and does it o away under hard accelerating? Sounds like the td04 wastegate flutter they all have it and some are more pronounced then others and sounds like a tapping almost like a exhaust leak. I have a 2005 Pontiac g6 that started making really loud roaring noises yesterday when i accelerate or turn on the car. Also, if the sound isn't necessarily new, cars with turbos will whistle when they accelerate as the turbo spools up. The sound starts during acceleration and then ends, it seems to correlate with boost pressure. flapping noise when accelerating i think i'm having this same problem. I took a long ride down PCH here in Orange County the other day, and about 1/2 way through the trip, I noticed this loud metal rattling sound when ever I gave it a lot of throttle. The EGR valve is designed to cool exhaust gas by burning exhaust for a second time within the intake system. When you covered the tailpipe with the engine running, did the exhaust start to pressurise the system, and make the engine stall if held on for a longer time. Many shops in larger. Many exhaust leaks, especially if they come from the exhaust manifold, can cause a ticking noise. Many who own a 4. A few days ago I noticed that my Laguna 2. But most drivers accept there may be evidence of short puffs of gray smoky haze or vapour when the engine is accelerating hard or under heavy load. If fresh air is allowed to leak into the exhaust system it will ignite the un-burnt fuel inside the system creating a popping noise. RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Flapping Sound When Accelerating - Exhaust Leak?? I've noticed a fairly loud flapping sound when accelerating, think a baseball card in bike spokes. or simply too loud i can't tell the diff. However, if you feel it is abnormal, check if there is an item jingling around in your glove box. I have used a mechanics stethoscope to see if the timing chain was causing the noise but it was very quiet and could not be heard. Use compressed air to pressurize the exhaust manifold. Exhaust leaks suck It's only when im on load so it's not like i can put it in park and find it. When I accelerate, I tend to hear a "knocking/pinging" noise coming from my engine. Well when I am accelerating, and I hit about 30 or so and am revving around 2500-3000 RPM's I get this terrible noise! I can explain it a few different ways, it sounds like a gargle sound thats coming from metal. I have interior rattles but I also have an exhaust leak type sound when accelerating, not sure if it is an exhaust leak, the infamous dodge cracked manifold or just normal noise, the dealer will be looming at it when I take my truck there soon. im thinking its a busted exhaust bolt,, exhaust leak? u think its the gasket making that whisle sound as it passes through the leak. foot off the accelerator and exhaust brake toggle switch on. At first i just assembled using replacement gaskets. Nothing at Idle or after 2500. Was the noise the same before you changed the muffler?. Many exhaust leaks, especially if they come from the exhaust manifold, can cause a ticking noise. Diesel Turbo whistle question. Re: Ticking sound I agree with exhaust leak, and noisy injectors, though I don't know if that's a problem with your engine, I know that the 4. I cleaned the throttle body the other day but still have the noise. The 2016 Mercedes-Benz GLE350 has 3 problems reported for moan noise when accelerating. Some days bad, like today, and other days no noise at all. Well when I am accelerating, and I hit about 30 or so and am revving around 2500-3000 RPM's I get this terrible noise! I can explain it a few different ways, it sounds like a gargle sound thats coming from metal. 2 Diesel (now has 113,000 mile on). Im am now looking at boost/ exhaust gas leaks - maybe a crack in the exhaust manifold that only opens up when hot. The fix, if this is correct, is to replace the exhaust manifold gasket or possibly the exhaust "doughnut" where the exhaust manifold connects to the exhaust pipe. Quiet while coasting. Reputation: 7038. I could smell exhaust under the hood though, which was a big clue. Suck the described amount through a vacuum line like the brake booster line and follow the instructions. Is it my exhaust manifold? Answers to both of my problems is needed. when I floor it at about 1800 rpm, just when the turbo is building pressure. Crawl under the truck and check out the bolts holding the sections of the exhaust system together, I bet its an exhaust leak. Sorry if I’m wasting your time. whistling noise can be anything, had an annoying whistle noise in my 4x4 TD only on acceleration and it was one of the bolts missing on exhaust manifold which made it leak a bit, but i had a couple of TD and they all have turbo whistle and they were all working fine. I like the truck! The ticking noise is driving me crazy though!. a leak)? Does it sound more like spark knock? I already have leaking valve guides so could this be related to something more serious in that area? Thanks. I believe I have an exhaust leak, which I haven't gotten fixed. had a really hard time getting over 50mph, then right after that i now have a popping sound coming from what seems to be around the exhaust system. Keep in mind that there is a gasket that mediates between the engine block and the actual exhaust manifold piping. also for me i got a new full turbo back exhaust so i know there is no leaks on that end. Only while under light acceleration I get a bad fluttering sound that sounds like it's coming from the firewall. An exhaust leak. Oldish member here with a new problem. I'm still wondering if there might be any other components that could cause a noise during acceleration. sounds like a exhaust gasket gone on your exhaust manifoldIf you have a catalytic converter on your exhaust its probably plugged replaced all the exhaust gaskets , donut. Misfiring spark plugs and bad cylinders can rob the car of its power supply, as can antifreeze or oil entering the exhaust system. RESTRICTED EXHAUST Tools Required 2007 Hummer H3 2007 ENGINE Engine Exhaust - H3 MY. It does not happen when sitting still and the engine is revved. If it was, a leak would sound like air escaping from a tire or something. Car: 1981 BMW. Car Makes Noise When Starting And Accelerating. Unfortunately this region outside the car also can experience exhaust coming in when the vehicle is in motion and when under heavy acceleration and when under heavy acceleration the exhaust gets "smelly" from lots of fuel being burned and depending on the state of the cats could also smell like sulphur too. I changed over completely to R134 and have noticed that when I accelerate and I have it on MaxA/C, my air goes to the defrost vents and there is a flapping sound under the dash. A blown exhaust gasket can cause some pretty loud sounds from that area, but it will always be louder and faster as you rev the engine. The truck runs fine, and when I get up to my cruising speed, the ticking goes away. My Dad finally got to hear the ticking noise, he thinks the issue is an exhaust leak and that noise is just being caused by it. Drive shaft: clunking sound from rear of vehicle on take off, dealer said it was drive shaft and was normal. Vehicle coasts smooth and quiet. Is it the mating of the CAT to the exhaust? If so go to and exhaust supply on line or local buy some metal gasket material and custom cut your own. The exhaust manifold is fitted to cyl head and where the exhaust front pipe joins the engine. But when I really push on it, the noise is no more. Answer Wiki. It's much more noticeable when in lower gear and accelerating hard. Low rpm exhaust noise. My exhaust, headers to a Y-pipe followed by the cat/muffler, is all brand new. It sounds like an exhaust blow to me - perhaps a manifold crack that only shows itself when the car is accelerating due to the movement of the engine against the mounts at that point. foot off the accelerator and exhaust brake toggle switch on. The past weekend I took my 96 LX for a spin. You have to inspect the exhaust system to find out if heat shields are causing rattling noise in car when accelerating. I have a 04 F150 5. If the exhaust pipe or any of its filters were to get clogged, it would weaken the functionality of the engine by reducing its power and making the vehicle drive slow when trying to accelerate. I have a 2004 Ford Taurus DOHC and it makes a whistling noise when i accelerate and when it hits over ~3000 RPM. When accelerating or when reving the engine, I'm hearing a distinctive "tick tick tick tick tick tick tick tick tick" or maybe it's more of a "click click click" sound. That patch came off all of a sudden with kind of a bang. People have tried wrapping the exhaust to muffle the sound and changing the wastegate duty cycle to decrease the chatter. When my exhaust manifold started to crack, it made noises like that. Therefore, the dangerous fumes should be quietly and quickly transported to the back of your car. I replaced it and I still have the. So anyhow, I get this high pitched whistling/screeching sound coming from under the hood. If un-burnt fuel meets air in the exhaust system, it will burn, causing the screeching sound of a backfire. Crawl under the truck and check out the bolts holding the sections of the exhaust system together, I bet its an exhaust leak. The car seems to drive just fine, but over the last week or so, I've noticed that when I accelerate, I can hear a fairly faint high-pitched whine. The exhaust system goes from the engine compartment to the back of the vehicle. When you accelerate, the car will lack power and respond slowly to pressing down on the acceleration petal. i have a 1995 mitsubishi eclipse and everything runs good except lately when i accelerate i have noticed that there is a whistling sound coming from my car. That is actually something that doesn’t much harm hour bike but is not doing anything for its performance or anything. ive done some reading and people say the whistle happens when the dv is broken, but it doesnt whistle all the time, and no CEL. Expert Car Care Advice. i have got a 2000 renault clio 1. See if you can get it to stop. Im am now looking at boost/ exhaust gas leaks - maybe a crack in the exhaust manifold that only opens up when hot. I changed over completely to R134 and have noticed that when I accelerate and I have it on MaxA/C, my air goes to the defrost vents and there is a flapping sound under the dash. Another common cause of engine sputtering is bad spark plugs. There is no smoke coming out of the tailpipe and there are no codes from the Vag-Com. from an exhaust leak to tires on concrete, rain-grooved freeways. After that the whining noise is covered by others. I took it to the dealer because i have an extended warranty for like 4years/100,000mi. I believe I have an exhaust leak, which I haven't gotten fixed. From the start, the car had the gurgling sound that everyone mentioned. He said it can't be replaced without replacing the turbo because it's attached to the turbo and is one piece. Warrenty dealer (Thermo King) replaced filter/dryer and attaching pipe. But at WOt it shoots down to 10. Below are the top 5 symptoms of an exhaust leak that is coming from your car. If Blue Smoke appears all the time your engine is running then the first thing to check is the PCV (Positive Crankcase Ventilation) Valve. Its actually unburnt air that is coming out of exhaust. 4L) It really sounds like an exhaust leak coming from the right side of the engine, I'm not a mechanic so I'm not positive. I noticed it over the car radio this morning, which is what tipped me off. The following noises may be among those : A loud whine or whistle during acceleration Exhaust howling (spooky hoot) during turbo boost. Common causes of backfires are: Wankel rotary engines are known for leaking oil into the exhaust system which causes backfire. Every once in a while a drop or 2 of coolant from the area of the water pump would be noticed. it has a loss of power from this. I've been dealing with a rattling noise on acceleration for quite sometime and could use your knowledgeable guesses as to what the issue may be, or at least where it could be coming from so I can probe it further. The harder I accelerate, the louder the noise. To rectify you can either: 1. I did a catless up pipe and down pipe, and put in a new turbo (just a new td04). They make a sputtering sound as opposed to a lifter with a ticking sound. give you the growling sound like a mod exhaust (only softer sound) my car stock leh. Sounded like an exhaust leak/heatshield vibration. ) This site uses cookies. Transmission: shifting hard from 1st to 2nd and sometimes to 3rd. Other possibilities are a badly worn engine mounted fuel pump or a very loose timing chain. > >I also had the entire exhaust system checked, hoping there was a broken hanger, or leak. Personally, I think the sound is coming from the exhaust system, not from under the hood. Overheating, severe coolant loss, maybe oil loss, white exhaust smoke, etc. It is not noticeable at all when idling. It happens any time whether I am in neutral or actually in gear. Answer Wiki. Had around 150,000 when I bought it. Well when I am accelerating, and I hit about 30 or so and am revving around 2500-3000 RPM's I get this terrible noise! I can explain it a few different ways, it sounds like a gargle sound thats coming from metal. well i had to come back on this one. But once i put it into drive, it starts doing the annoying clicking. My car makes a hissing noise when I accelerate? Sounds like exhaust, or a vaccuum leak Get under the hood and see if you have a vacuum leak some where you. - Im asking for your help. I'd take it to a shop and have it inspected more throughly. in fact hitting higher speeds or rpm the sound seems to go away. Ticking or clicking noise when accelerating I get a light ticking or clicking noise when I begin to accelerate that I can hear in the cab. Hey, I'm getting a deep groaning sound when I accelerate, the more the load the louder the groan. Check the joints where pipes join boxes or bends. VW Golf MK4 130TDI - Air leak when accelerating + grey exhaust smoke - unthrottled Well you're not going to have a leak upstream of the turbo compressor! Follow the intake ducting from the exit of the turbo to the intercooler and through to the intake manifold. A boost leak is fairly obvious as you’ll normally be chucking out a lot of soot when accelerating. Not the exhaust leak but if I have a crack on the catalytic converter a hole or anything they would fix it under the warranty with no problem. i hate the sound it makes my jeep sound like a pile!!!. Remember that a gasket lies in between the piping of the exhaust manifold and the engine block. Learning about them should help you diagnose the problem faster and put an end to it. A ruptured mount will leak fluid everywhere. If I punch the acceleration I seem to move the engine past the sound. It sounds like an exhaust leak, but there are no other indications of a leak and it's quiet as can be when the car is not in motion. Therefore, the dangerous fumes should be quietly and quickly transported to the back of your car. It does not do it while sitting idle or while reving the engine while parked, it only does it when I am accelerating, if I take my foot off the gas while driving it stopsAlso, it is loudest when the jeep is cold, quiets down when warm, but still does it. The sound may be especially pronounced during a cold start or during acceleration. can anyone tell me if this is normal with a. Let me get to the current issues i am having trouble with. If you think you may have an exhaust leak but are not sure, try placing a doubled-up towel over the tailpipe and put your hand over the towel to stop the exhaust from exiting the tailpipe. thanks for your response also. I can hear it while accelerating when in neutral and when driving up until the 3rd gear. Some of these cookies are essential to the operation of the site, while others help to improve your experience by providing insights into how the site is being used. The noise is caused by leaking gases making the gasket vibrate & act likea whistle. Replaced intake manifold gaskets all 12 of them and airmass sensor and the intake manifold was cleaned and new gaskets. Anyway, that's your best bet. It only did it under slight acceleration, not under full throttle or while coasting. It's just a distinct change in tone on acceleration. People have tried wrapping the exhaust to muffle the sound and changing the wastegate duty cycle to decrease the chatter. You may have to register before you can post: click the register link above to proceed. Therefore, the dangerous fumes should be quietly and quickly transported to the back of your car. Whats also weird is when i go over a bump, the noise goes with it. Below are the top 5 symptoms of an exhaust leak that is coming from your car. Remember that a gasket lies in between the piping of the exhaust manifold and the engine block. I'm stumped as to what the problem is. Vacuum Leak Symptoms: Difficulty Starting Engine. It does not do it while sitting idle or while reving the engine while parked, it only does it when I am accelerating, if I take my foot off the gas while driving it stopsAlso, it is loudest when the jeep is cold, quiets down when warm, but still does it. Hello, I am the original owner of a 2000 XE crewcab, with 147k miles. Sound like the exhaust is hitting an empty metal container. kr/p/2hjt9eY ECM TESTING Plugged in the VIDA and got this (Video). When you are accelerating in a motor vehicle, the engine often makes a humming sound. The ticking noise is the pulsating of the exhaust cycle in unison with the engine. Doesn't seem to have affected power but had the car for 5 years and I haven't noticed this before. brief, faint dirt bike sound on acceleration Vue Tech brief, faint dirt bike sound on acceleration - SaturnFans.