Car Knocking Sound When Not Accelerating

Knocking noise coming from engine bay. I replaced the tires and it is still there. Engine spark knock is usually heard during moderate to heavy engine acceleration. then I tried taking it out of overdrive and wallah! no noise. Wiki User 12/10/2008. I know Urban is not exactly a hotbed of car loving petrolheads, but I know there are a few out there who know a bit about motors. Hey car experts, maybe you can help me with my problems. Re: Grinding noise when accelerating Post by mpstick » Sat Apr 13, 2013 9:20 pm it was a year old with about 25k miles,i was hoping they did not because I didn't like the car but because after that frontend damage I was expecting the car to go downhill. Normal Reasons Why Your Car Tires Sound Loud Tire Type, Size, and Tread Peculiarities Tire Type. It disappears when I stop accelerating or sharply reduce my acceleration. if the knocking is coming from your wheel my guess is it's the freehub body, not necessarily the cassette itself. Any sound when turning a corner. Engine knocks during idle? In the past week, my engine has developed a knocking sound while idling. It's only when I have my foot on the brake and am at a complete stop. Don't really hear it too bad at highway speed as usually not accelerating hard once at speed. It literally stops when you let off the gas but as soon as you so much as touch the gas it returns. The sound is coming from the front of the car. The Causes of Internal Engine Knock, and How to Eliminate it. Recently, the noise is louder. In any case, it is not good news and there are a number of reasons why this might be happening. If your vehicle's engine makes a clattering or knocking noise that. hello i have a 1993 club car and when i accelerate the cart i hear a knocking sound then when i hit the floor with it it makes a bunch of sounds i dont know how to describe it but what do you think it is? i will give you a link to a youtube video that i made with the sounds and im willing to do something for this because i couldnt find this answer anywhere thanks. Ticking sound on acceleration? The clicking gets faster when I speed up. I’ve read on this site that the 4. If the sound doesn't change, look at parts other than the reciprocating ones. see if you got any bearing parts , material, thrust bearing, blah blah blah. I've been under the car tonight rotating the wheels at various degrees of lock, shaking joints and shafts. If i take the car out of gear and coast the knocking sound is still there. Step 3 is to find a similar car noise from our car noise library. But,, really don't know what to look for. If the procedures listed above do not cure the knock, it may be an indicator of a more serious problem. More often than not, Camaro, Firebird, and Corvette owners will experience certain noises during normal driving or under acceleration that would lead them to believe their car is falling apart. Why? Rob wrote that a squealing sound could be several things. I heard it few weeks ago, but it was really faint, I didn't pay any attention to it. Step 3 is to find a similar car noise from our car noise library. Do not put yourself in this situation because many vital components of your engine could be damaged if you do. If your car makes a clunking sound when you use the brakes, it could mean there is significant wear or damage to the brake discs, calipers or pads. SYMPTOM SUMMARY The engine "pings" or knocks on acceleration. Hyundai has released a technical service bulletin on this problem, which describes installation of an updated design timing chain tensioner (part #24410-3C300) to correct this noise issue. Messages: 5,698. I took it in to service, but the Technician could not hear it very well. It got a whole suspension rebuild aboout 15kmiles ago. Our 07 EX CR-V is making a loud high pitched electric whining sound (this is the best description I can give the noise). The history of the car has been mostly country driving from Sydney to Melbourne and return, yet my company ute has been used for city start stop and rough roads yet still feels very tight. Effects of engine knocking range from inconsequential to completely destructive. I have a 2006 civic which recently is making a loud humming noise when driving at all speeds, but especially at speeds above 50mph. The 300SD sounds like a jet engine (or race car) when I'm accelerating. The shock wave creates the characteristic metallic "pinging" sound, and cylinder pressure increases dramatically. It gets faster as I accelerate but tends to disappear at higher speeds. Today my engine temperature reached 100*C and it was really rattling. But,, really don't know what to look for. It’s the sound of automotive health. 2008 Toyota Tundra truck with 5. If your knock sensor is out of whack it could sound like that. In this case, you should not use the car until the knocking engine noise has been fully and properly tested, diagnosed and repaired. I only notice it when I hit the gas hard. Noises can get tricky because car sounds travel down the metal frame and suspension parts, also noises bounce around inside the vehicle cabin like an empty can, sometime you will chase a noise for days and not figure it out, but with these tips, you should have a better understanding of how to start the diagnosis process, so don't get discouraged, even top mechanics get. Engine spark knock is usually heard during moderate to heavy engine acceleration. You hear a high-pitched squeal that stops when you shut off your engine: Readjust or replace the belt. Often comes from worn shock absorber or strut mounts when driving over a speed bump. i checked and my was wobbling so i parked it. Its had a host of issues over the years (I've had it. Firestone can’t figure out what is wrong. I have a 2000 mustang and recently the engine has started knocking while the car is accelerating. i might scratch that broking off my checklist of folk to circulate to. I still have the rattle. Bad Engine Mount (Idle, Accelerating and Driving) - The engine mount is what connects the vehicle's engine to the rest of the body of the car. If you're questioning what is normal engine noise, I may have the answer. The usual cause of engine ping is over advanced. I was driving today when I heard a “pop” noise — like something broke or snapped — and the car stopped accelerating. Since the weather got warmer I have a clunk after a while of driving (warm suspension components) when coning to a Stop, when accelerating from a stop, at slow turns. The sunroof shade was closed, so no glass entered the cabin. Honda knocking while accelerating i took the car for a drive and while driving first thing i noticed was a very obvious knocking sound coming from the engine when. Yes, got a clunk noise when I'm coasting, but not when I'm accelerating or braking. The ticking noise is coming from the engine bay, not the tires. April 15, 2016 - If your car is making a squealing or squeaking sound when you turn the steering wheel, there could be any of several culprits at play. If your car's engine knocking has you stumped, stop by your nearest Firestone Complete Auto Care and let our technicians get to the bottom of the noise. When the belt no longer moves smoothly along the pulleys, it makes a noise when the car is accelerating. If you have ever experienced sudden vibrations during acceleration and had your problem sorted out, kindly share with us on the experiences and what you think is the best solution to the question Why does my car shake during acceleration?. When I idle the car is nice and quite no sounds. If the noise goes away, then it may be the engine or clutch assembly that is causing the problem. my corolla makes a loud knocking noise while accelerating between 0-25 mph and it happens alittle when you go faster then that the car started shaking alot all the sudden what is wrong Submitted: 10 years ago. Knocking noise while coasting/decelerating/braking on 99' Integra Like the title says, I'm hearing a knocking noise whenever my foot is not on the gas in my '99 Integra LS. I ONLY hear the ticking during acceleration or when the motor is under load. Normal Reasons Why Your Car Tires Sound Loud Tire Type, Size, and Tread Peculiarities Tire Type. ORINDA, Calif. If you hear a light knocking or pounding sound, the noise can usually be traced back to your connecting rods. I crawled under the car best I could and tried to move. Firestone can’t figure out what is wrong. If I let off the gas at all, the noise immediately stops, irrelevant of RPM's or driving speed. After doing this, start the car and take a short test drive to see if the problem goes away. The sound is not audible when I am accelerating, it actually disappears. The Causes of Internal Engine Knock, and How to Eliminate it. Could it be th. This discharge can manifest itself as a clicking sound. Step 3 is to find a similar car noise from our car noise library. The sound will cease when I slow down, and I won't hear it until I go around 50 mph again. A car that makes such a weird noise at the time of acceleration, will be fine at a set speed. Knocking: If it's a 'knocking' noise from deep within the engine, it's usually not a good sign. This sound is often most noticeable when the engine is at an even rpm-not accelerating or decelerating-and is often caused by a worn bearing or crankpin, misaligned connecting rod, or lack of oil. On the other hand, If during the process of running the purge through your engine, the noise does not go away, then you should be concerned. Engine spark knock sounds like a metallic knocking, pinging or rattling noise coming from your engine. But around town it is real loud, I can hear it best when coasting at around 40 klms/hr and then accelerating a little. This is NOT an exhaustive list of problems and is for guidance only. Its a new car bought in march 2008 (09 model) these past few weeks in the morning when I start the car I hear noise coming from the engine. Honda knocking while accelerating i took the car for a drive and while driving first thing i noticed was a very obvious knocking sound coming from the engine when. The dealer’s service department did not reckon that this was a significant problem and just said use premium. Anyways it really only makes the noise when the car is under load / acceleration. This also creates the common "pinging" noise that is often described when knock is present. “A rambling sound out of the engine is usually one of the indicators that hey, I’m running out of oil,” Burkhauser says. Complaints by drivers alleging economic losses were settled by Toyota in a separate $1. Experience has taught me that by the time something makes a noise on a Land Rover that it shouldn't be, it's already time to replace it. After ruling out any problems with the powertrain, he found a wire that was loose and resting on metal. Knocking while turning at slow speeds Hi Guys, I have an '02 WRX and have recently started getting this knocking when turning into parking spaces and just turning at slow speeds in general. I checked the guibo, no signs of tears yet. Often used to describe the sound of a car rolling over warning strips in. I can only hear it when I am coasting with the ticking noise matching the car's road speed. undesirable ball joints may well be an identical. We purchased it new and have enjoyed its versatility and comfort. You need to check the vehicle for an air leak, (maybe a vacuum hose come off), oxygen sensor on bank 2 not working, or a knock sensor having failed. Hubby took it for a run up the road when I got home and it seemed to be doing the knocking when accelerated after braking (i. It is rather faint and it goes away when I either let off the gas or my speed is constant. The sound is something like a engine knock, chain rattle, keys in the cylinder sound. If the procedures listed above do not cure the knock, it may be an indicator of a more serious problem. Engine pinging also refered to as pinking, detonation or knocking. Why? Rob wrote that a squealing sound could be several things. Your car engine is making unnatural noises and you don't have the slightest idea what it could be. You may have to register before you can post: click the register link above to proceed. Step one to the identification of a problem is listening to your car when it's signaling you there is a problem. 2- A tap occurs when the wear adjuster for one of the valves has sludge blocking oil to it. The noise now beings from when i turn the engine on. I was listening to it on the way to work this morning and it seems to not happen when just cruising at a constant speed, however when I go to accelerate to overtake sound becomes quite loud Thanks for all your help guys, I have it booked into the shop in a couple of weeks time, but I like to be a bit forewarned if possible. ABS will produce such a sensation when braking hard. Engine knock occurs when the air-fuel mixture inside a cylinder is not optimal, and as such, makes the fuel burn unevenly. Pinging can be anything from a loud knocking noise to a soft tinkling sound that is emitted from the engine. lumpy idle and acceleration 34 Answers since purchasing my vectra b 140 ecotec(x20xev)it has suffered from lumpy idle and non exsistant acceleration in 1st and 2nd, but get it in 3rd and its away with no symptoms. Depending on your vehicle, manufacturer recommendations, and mileage, a maintenance tune-up may be just what your car needs. on dry weather, there is absolutely no such sound no matter how i whack the car. The sound is not audible when I am accelerating, it actually disappears. Re: Rattling noise from the engine only under load/acceleration « Reply #8 on: August 18, 2009, 01:32:09 PM » Hard to tell without hearing it but it does sound like gas knock to me which I had on my 1st five bikes, 4 Hondas and my 97 GS. Any help would be appreciated. It also makes the noise if the car is off and i move the steering wheel there is a clunk type noise. Re: clack clack noise when accelerating Post by Stompie » Thu Jan 15, 2015 8:53 am I know my one boost pipe is loose due to not having a bracket in the same place as the oem pipe and this pipe is also very close to the right drive shaft so im thinking that as i boost the pipe pushes back with the boost and either touches the drive shaft. Car Noises Travel. This noise is often caused by a worn or loose piston pin, worn bushing, or lack of oil. Then you can take your vehicle to the auto shop and get the necessary repairs or replacements done. Club Car Rear end Bearing Noise Over the years I have replaced a few bearings in CC rear ends. Do not put yourself in this situation because many vital components of your engine could be damaged if you do. There are main things that can cause this, particularly without knowing the general direction of the noise. Never left or even when I am driving straight. You usually hear this noise when accelerating the vehicle. A driver might not notice these signs in normal day to day driving but they become abundantly clear when driving up a steep hill or when quickly trying to accelerate into fast moving traffic. I've got a Peugot 306, T reg. No not necessarily, the smart car has set parameters for all the engines settings, by changing them from standard you run the risk of the engine management unit thinking there is a problem. With the engine off, pump the pedal and listen for the sound. If your problem is not covered here then you need to take your car to your local Alfa specialist. Step 4 take your car to a trusted mechanic and play the noise back to the mechanic. Is there something wrong. Knocking: If it's a 'knocking' noise from deep within the engine, it's usually not a good sign. If your car makes a clunking sound when you use the brakes, it could mean there is significant wear or damage to the brake discs, calipers or pads. Knocking sound when Im braking was created by Chad3 So Ive recently done work on my 1996 Honda Civic LX, automatic, 1. I have the problem of knock in my engine when accelerating. But not keeping an eye on your oil can cause major problems for your car. The symptom is more pronounced when the engine is at operating temperature. my corolla makes a loud knocking noise while accelerating between 0-25 mph and it happens alittle when you go faster then that the car started shaking alot all the sudden what is wrong Submitted: 10 years ago. Your car engine is making unnatural noises and you don't have the slightest idea what it could be. The engine has 180k miles. The front struts, shocks and stabilizer bushing has been replaced last 2 months ago. Powered by the mixture of fuel and oxygen, combustion occurs when the spark from your spark plugs act as the trigger. The first is belt noise. Below are the top 5 causes of car engine knocking. It makes a noise when I accelerate after being at a stop, and then it goes away. The sound is kind of like a rattling, but also kind of like a loud fan, so I thought maybe it was just vibrations, but the sound cuts out the second I either push harder on the gas or lay off of it. You know when they are going because they start sounding loud and whining. Hubby took it for a run up the road when I got home and it seemed to be doing the knocking when accelerated after braking (i. Why Is My Car Making A Knocking Noise When Accelerating? - Answered by a verified Pontiac Mechanic We use cookies to give you the best possible experience on our website. It also has some pretty decent sound and is portable enough to carry with you if you do plan on going out on vacation or from one room to another. Just to confirm, is the noise related to engine speed, or vehicle speed?. Your car's engine needs both fuel and air to do its work. My car was at the dealership for more than a week for this nd also another engine noise, after many hours of diagnostics, this turned out to be from within the transmission, nothing dangerous they said and was not covered by my extended warranty (now expired) to replace a tranny so i live with it. When I take my foot off the gas to shift, the knocking starts and continues until I'm in gear and have my foot on the gas again. Hubby took it for a run up the road when I got home and it seemed to be doing the knocking when accelerated after braking (i. Bmw 2000 driving good but i heard sqeekie noise n my fan loose. Re: Rattling noise from the engine only under load/acceleration « Reply #8 on: August 18, 2009, 01:32:09 PM » Hard to tell without hearing it but it does sound like gas knock to me which I had on my 1st five bikes, 4 Hondas and my 97 GS. The thumping sound was not present when I brought the car in and Firestone chose not to test drive it before replacing pads, etc. What causes the pinging noise in car when accelerating? I own a 2002 Kia Rio, recently ,my car has been making a pinging noise when i accelerate, the mechanic told me that i need to do a fuel injection treatment and change spark plugs. hope that helped you!!. I've been under the car tonight rotating the wheels at various degrees of lock, shaking joints and shafts. I had the sway bar taken off but it did not solved the problem. This also creates the common "pinging" noise that is often described when knock is present. Why? Rob wrote that a squealing sound could be several things. My car makes a loud noise while accelerating. Car Noises Travel. I can only hear it when I am coasting with the ticking noise matching the car's road speed. It gets faster as I accelerate but tends to disappear at higher speeds. Below are the top 5 causes of car engine knocking. Sounds fine when you put car into gear. The light went off when he replaced the cam sensor, but the car still makes noise when accelerating. Knocking sound when Im braking was created by Chad3 So Ive recently done work on my 1996 Honda Civic LX, automatic, 1. This vital part of a car's structure doesn't tend to cause problems. Any Ideas? More info: The noise seems to come from both left and right rear wheel. This company is not yet accredited. We didn't perform any testing other than the old "hit it with a hammer and see if it rattles" type of exhaust test, but a quick sawzall job took the cat off and it was clear that it was all clogged up with debris of some kind. Step 4 take your car to a trusted mechanic and play the noise back to the mechanic. If I coast the noise again is not there till gas is applied. The first step to shot out the problem is to detect why your car make the noise when braking at low speeds. I change my grounds, and focus mainly on EQS as there as no noise before, but no improvements, If I disconect the Output RCA from the EQS755 the noise go away. Spark Knock is a knocking, rattling or pinging noise that may be heard when he engine is accelerating. Don't really hear it too bad at highway speed as usually not accelerating hard once at speed. If you’ve got rod knock the sound will change with engine RPM and will not change with engine temperature or load. “A rambling sound out of the engine is usually one of the indicators that hey, I’m running out of oil,” Burkhauser says. I pulled it home and when I started it the car would not accelerate and engine was jerking and rough idle and puffing black smoke I checked my turbo for any play and there’s not then I moved to my egr I case it was clogged and it is literally spotless. I read in the forum that this could be caused by wheel bearings, but my wheels are not loose at all. And so I'm in a good position to state that the detector is not very good at picking high-rpm knock! As with so many knock detection systems, the problem is that the sensor will detect general engine noise - rather than detonation - if engine rpm is high. Re: clack clack noise when accelerating Post by Stompie » Thu Jan 15, 2015 8:53 am I know my one boost pipe is loose due to not having a bracket in the same place as the oem pipe and this pipe is also very close to the right drive shaft so im thinking that as i boost the pipe pushes back with the boost and either touches the drive shaft. Winter tires (especially studded) and off-road car tires sound loud, due to their tread pattern goals. If your car has no ABS then be concerned it could be that your brake disc are damaged. I have a 2006 civic which recently is making a loud humming noise when driving at all speeds, but especially at speeds above 50mph. It's more of a click/cracking sound that a clunk. A noise that gets louder while you’re vehicle is accelerating, probably means that there is heavy contact of the pinion-gear teeth on the outer ends of the ring-gear teeth (pinion gear not set. I have the problem of knock in my engine when accelerating. Low vacuum, retarded timing, no power, surging when accelerating and the trans shifting at strange points, all indicated, among other things, a possible clogged exhaust. I notice it between 2-3k RPM (20-35mph) and it is clearly coming from the forward half of the car. Most cars will ask you to put the car in Park or Neutral. After that I reached a stop light and then the car died, So I took out the keys then put them back in the ignition and turned the car but it struggled to start and after I began to accelerate once I had re-started the car but it made a rattling noise and. Re: Rattling noise from the engine only under load/acceleration « Reply #8 on: August 18, 2009, 01:32:09 PM » Hard to tell without hearing it but it does sound like gas knock to me which I had on my 1st five bikes, 4 Hondas and my 97 GS. Not a very harsh sound and some times sounds like a ufo type noise ! Its not apparent when accelerating so i am assuming its only when engine is braking but cant be certain. Yes, got a clunk noise when I'm coasting, but not when I'm accelerating or braking. When I accelerate, something in the underbelly of the car rattles until I reach about 25mph (ish), It only happens with my foot on the gas. 1 billion class-action lawsuit in 2013. IF your knocking is a result of an oil issue, it is that your car is very low on oil and you should add oil IMMEDIATELY to avoid serious damage. I have a 2010 tacoma 4 cyl manual transmission. With the engine off, pump the pedal and listen for the sound. It also happens when I turn right faster at the intersection because there is more pressure on that wheel. A loud knocking noise in the motor of a car at high speeds is most likely the engine. they also glued teh spindles but didnt help much, all mounts are new etc. These include: * Popping or clicking noises when turning. Back when I sold cars we had a manager who was not good at checking trades and on more than one occasion he'd take a bad one. The shock wave creates the characteristic metallic "pinging" sound, and cylinder pressure increases dramatically. 8 V-6 engine. When turning at low speeds 1 - 5 mph I get this knocking/popping sounds from what I think would be the knuckle or maybe somewhere in the steering column. On a lean mixture under acceleration you are describing a noise known generally as 'pinking' - clicking as in rattling. These vehicles—the IS 350 especially—tend to tick like a clock at idle. The RPMs are staying right at 700 and the car isn't over heating. Conclusion. A change in fan speed as the refrigerator responds to changes in temperature due to door. An engine rattling noise, or a clicking sound in an engine, can spring up from a number of sources. Winter tires (especially studded) and off-road car tires sound loud, due to their tread pattern goals. When the truck heats up and I start to accelerate there is a knocking/clicking sound, sometimes loud sometimes quite, coming from under the car. doesn't do it when foot is steady on the throttle, but does when you start to accelerate from braking). Your car engine is making unnatural noises and you don’t have the slightest idea what it could be. I have ruled out CV issues because I have no clicking sound when under tight turns. I crawled under the car best I could and tried to move. It seems to make the noise more AFTER it is warmed up. We purchased it new and have enjoyed its versatility and comfort. In addition to this, it's not a bad idea to get an injector flush altogether. When the belt no longer moves smoothly along the pulleys, it makes a noise when the car is accelerating. Hyundai Veloster Engine Problems. When I start up and put the clutch down, the engine makes a dodgy rattling noise which sounds like something serious about to break. If you hear a light knocking or pounding sound, the noise can usually be traced back to your connecting rods. Step 3 is to find a similar car noise from our car noise library. After the turn I started hearing a clicking noise coming from somewhere towards the front of my car. A change in fan speed as the refrigerator responds to changes in temperature due to door. When I idle the car is nice and quite no sounds. Here’s a look at car rattling noises from both inside and outside of your vehicle and what they might represent. Engine pinging also refered to as pinking, detonation or knocking. I just noticed this tonight and haven't heard this noise before. com/101976/breaks-happening-questions-infinite-questions-questions A rope breaks, a bell rings, and a man dies. This car is a Toyota Corolla 1500cc, multipoint injection. Whenever I started my car and accelerated, I could hear a scraping noise resonating from inside the engine. If I coast the noise again is not there till gas is applied. The mount is also designed to absorb vibrations and shocks that come from driving on the road. Not necessarly both, because they last a long time if the rubber boot around them is intact, keeping sand and other stuff out. Engine knocks during idle? In the past week, my engine has developed a knocking sound while idling. Almost sounds like a rod knock, or perhaps a loose torque converter nut hitting the bellhousing or something. Why Your Car Makes a Whining Sound When You Accelerate? For many people, car is not only a means of transport, but also a precious possession. When I idle the car is nice and quite no sounds. Back when I sold cars we had a manager who was not good at checking trades and on more than one occasion he'd take a bad one. Chrome Data makes no guarantee or warranty, either expressed or implied, including without limitation any warranty of merchantability or fitness for particular purpose, with respect to. New air filter, new plugs and wires,and a new fuel filter along with oil change and new oil filter. What could cause a knocking sound under my driver front wheel well? It only happens when I turn right. The noise is simply a vibration that can be more felt than heard coming from the front disc pads due to slower stops you don't have the brakes applied fully which allows them to vibrate against the rotor surface. The loud knocking noise presents itself, when you hit the gas pedal and throttle injects more air to the engine. it is not making noise continuously, it on off on off during the journey. A little grey sludge is normal, but not shiny flakes. car engine sounds (331) Most recent Oldest Shortest duration Longest duration Any Length 2 sec 2 sec - 5 sec 5 sec - 20 sec 20 sec - 1 min > 1 min All libraries Stuart Duffield Justine Angus Airborne Sound BLASTWAVE FX David Fienup Luca Testolin Richard Humphries Raconteur Sound The Soundholder. Elle's 26th annual Women in Hollywood Awards hosted A-listers including Nicole Kidman, Melina Matsoukas and Gwyneth Paltrow, and sparked passionate speeches from its host, Issa Rae, and guests alike. When the shop informed him of engine issues, he'd instruct them to get the car ready for the line, or in some cases wholesale it and take the hit. Outside this, is is great. Anyone else with this issue? What did you do to fix it? We did have a bad motor mount fixed and that was not the issue. PT Cruiser Owner Complaints, Read about othe rowners problems and oil consumption problems, file a complaint! PT Cruiser Owner Complaints *Is a NEW Chrysler PT Cruiser that consumes at least a quart or more of oil every 1,000 miles acceptable?. So my car has been making a knocking sound that started around four days ago. Cooling down allows the engine to restart but the noise comes from broken rings and aluminium being removed from the sides of the pistons. all that crap can. It happens most when I accelerate after going a constant speed for a couple miles. ~~~ Some wrote describing a strange squealing sound - I live in Wyoming where it's quite cold this time of year. What causes a knocking sound when accelerating and idle? That depends if it is a load tapping sound if so, it might be your valves tapping, and you might just be about ready for a rebuild. I crawled under the car best I could and tried to move. That doesn't sound good, especially with 195K and an unknown history. Just a knock, knock, knock noise, kind of faint, but if you are paying attention you can hear it, and sometimes feel it. Getting under the vehicle would be the only way to diagnosis the problem to determine if it is one or the other. A quiet car makes for a happy driver, but once a rattle or some other odd noise emerges, your peace of mind may evaporate. Saved searches Why will my car not shift out of 1st gear 4 Answers. Your car’s engine needs both fuel and air to do its work. One such problem is rattling noise when accelerating. all my gears and smooth and perfect, the noise is just super violent. I ONLY hear the ticking during acceleration or when the motor is under load. doesn't do it when foot is steady on the throttle, but does when you start to accelerate from braking). The history of the car has been mostly country driving from Sydney to Melbourne and return, yet my company ute has been used for city start stop and rough roads yet still feels very tight. It dose not happen every time we accelerate, maybe 3 or 4 during the week and the noise is short lived. Making it really hard to pin point a source. When you step on the accelerator pedal, the rear wheels seem to literally scratch the asph. It does not matter how short or long I've been driving before this vibration occurs. Knocking noise coming from engine bay. My car, a 2009 Toyota Venza with 104,000, miles is making some strange noises when braking and turning. on dry weather, there is absolutely no such sound no matter how i whack the car. This isn’t a big problem, but I just wonder if it has any speed limiter or if it is normal. Loud enough to sound like having glass packed mufflers on the inside of the car. Your exhaust system, if not continuously and securely connected from front to back, can make your car sound loud or if it is not properly attached and held away from your chassis it can make metal to metal clanking as you drive down the road. Recently did an oil change last week as well as new air filter. After having a starter put on, there's a knocking sound coming from the driver's side. For example, an engine's air-fuel mixture may ignite too early or spontaneously combust. Almost every time when the car coming to a stop or going down hill. Noises can get tricky because car sounds travel down the metal frame and suspension parts, also noises bounce around inside the vehicle cabin like an empty can, sometime you will chase a noise for days and not figure it out, but with these tips, you should have a better understanding of how to start the diagnosis process, so don't get discouraged, even top mechanics get. If you hear a strange sound, pay attention and react accordingly. This is why it doesn't usually get much attention beyond the maintenance carried out by the mechanic during periodic servicing. When I start my Bug cold the transmission makes a squealing rrrrrrrrrr sound. End engine knocking at Firestone Complete Auto Care. Any Ideas? More info: The noise seems to come from both left and right rear wheel. If I put the car into Neutral and rev I dont hear anything, The same if im in Drive with my foot on the brake. I took it in to service, but the Technician could not hear it very well. Rattling valves on acceleration when engine hot. Sometimes people use an additive to the differential oil that makes the noise quieter. But still the misfire is there. it is not making noise continuously, it on off on off during the journey. It doesn't do it when I first start driving, it waits until a little over 5 minutes after I start. Your car's engine needs both fuel and air to do its work. We didn't perform any testing other than the old "hit it with a hammer and see if it rattles" type of exhaust test, but a quick sawzall job took the cat off and it was clear that it was all clogged up with debris of some kind. It is rather faint and it goes away when I either let off the gas or my speed is constant. I hope its not the CSB. Rather, the KNOCK SENSOR detected the noise and retarded the ignition, causing the poor acceleration. I was listening to it on the way to work this morning and it seems to not happen when just cruising at a constant speed, however when I go to accelerate to overtake sound becomes quite loud Thanks for all your help guys, I have it booked into the shop in a couple of weeks time, but I like to be a bit forewarned if possible. When I take my foot off the gas to shift, the knocking starts and continues until I'm in gear and have my foot on the gas again. I have a 2006 civic which recently is making a loud humming noise when driving at all speeds, but especially at speeds above 50mph. The sound is a. If your car has ABS then no. This feature is not available right now. I had a broken ring in the other engine that made a knocking noise, however, I never heard this type of a flutter sound from the old engine. Under load (accelerating uphill is the greatest load) then you could simply be suffering engine knock. Knocking noise while coasting/decelerating/braking on 99' Integra Like the title says, I'm hearing a knocking noise whenever my foot is not on the gas in my '99 Integra LS. Next on the list is to change the spark plugs again.