Knocking Sound When Coasting

fordproblem November 5, 2014 0 Comments If you are driving a 2008 Ford EDGE , or if you are planning to purchase one, then it is important that you review reported Power Train problems and defects. Basically, when should I be hearing any strange noises or getting any abnormal feedback from the transmission (eg clutch engaged, disengaged, in gear, coasting,. Am trying to work out the source of the heavy knocking noise on this Jeep Diesel engine (see video link below). It only happens when the vehicle is coasting, ie, if i accelerate or throw the car into neutral and "glide" the noise goes away. Is it a lack of sound deadening in the body ? The same story can be read over and over ,you get a rumble at around 40MPH and it continues to 70 mph. I didn't know if this was normal or not,just sounds like slack in the rear somewhere. installed or removed a front traction bar Last time I got underneath I verified everything seems tight along the wheel (tie rods, wheel bearing, etc), and it only does it when I'm coasting (clutch in or out) or decelerating. Have a 99 S70 with 120K miles. Replaced all the bearings/seals and the used a new crush sleeve Ratech and set correct preload. The knocking sounds almost like something flapping in the wind onto the frame, but I can't see anything that would be flapping. The knock sounds like its coming from lower down in the engine to be honest, but at the back, toward the number 8 position. If I coast in gear, no noise. Hi All, I wondered if anyone could help me identity some/any possible cause of a knocking sound I seem to be experiencing from my LC. Whenever I drive at a constant speed, at say 80km/h, in 5th gear, and I approach a down hill and take my foot off the accelerator to just let my vehicle coast at the current speed, I start to hear like a soft knocking sound from my engine (or gearbox) when the revs drop below around 2500 RPM's. I've looked around on my bike, tightened the cassette, re-greased the seat post and looked for anything else that could be causing the noise. The noise goes a lot quieter when the clutch is pressed and when coasting in gear with no power applied. I have put it in neutral and it doesn't change at all while coasting at 60 mph. If I put my foot on the gas or brake, the knocking stops. coasting along when the engine is neither pulling nor braking. Since a long time i have a knocking sound at the front suspension when i'm driving at a bumpy road. 11 hours ago · There was one contested race on the Tarboro Town Council in Tuesday's municipal election, but whether or not there will be a runoff between the two top vote-getters in Ward 8 remains to be seen. The knocking sounds almost like something flapping in the wind onto the frame, but I can't see anything that would be flapping. 4 Diesel Auto Grand Scenic has recently started to make a knocking/tapping sound when I am coasting/decelerating. I hit a dead deer the other morning. 8 LS differential issue. Sometimes it does it just coasting and a tap of the brakes will temporarily stop it. Replaced all the bearings/seals and the used a new crush sleeve Ratech and set correct preload. The car is a 55 plate and has done 42k miles, it seems in good condition and the engine runs very smoothly. Why does my driveline make a clunking noise? UPDATE: This product from BMR claims to fix it: Http://www. It is an automatic transmission car and the metal to metal sound seems to occur right as the automatic transmission moves from one gear to the next. The intake manifold runner control will make a knocking noise. Not sure if what noise you're hearing, but all of my 2-strokes will do that. I know, lots of stuff so I will quit rambling. Any Ideas? More info: The noise seems to come from both left and right rear wheel. Wonderful, I think the power of high resolution means small compromise when it comes to performance in noise. Any suggestions will be appreciated. Hearing an increase in the level of humming noises or gear grinding is a way of knowing almost for sure that you have a worn out differential. I have a 07' XLT Crew cab, 8. The knock sounds like its coming from lower down in the engine to be honest, but at the back, toward the number 8 position. 60K miles, don't know if the clutch has ever been done. I would take it to the dealer and have them take a look. I have a 2009 Cadillac Escalade 6. However, when I am driving for 10-15 minutes (enough to warm up the engine and drivetrain) and then come to a stop in traffic or put the clutch in to coast down, sometimes I will hear a single "clunk" or "knock". (Saw him too late) I center lined him so the skid plate would catch him and not a wheel. I've noticed that there is a clunking or knocking sound which i think is coming from the rear of the bike - the frequency of the noise speeds up as the bike does, but i can only hear it at low speeds. I can also get the knocking noise to happen while power braking it. Am trying to work out the source of the heavy knocking noise on this Jeep Diesel engine (see video link below). Re: rattling noise on my club car Mine makes more of a "squeak" than rod nock - too high-pitched and intermittent to be internal to the engine, imo. The link won't work for me. mine seems fine. This is going to sound dumb but I've changed many intake manifolds on the focus,escape,and fusion 4 cyl. i put air in all tires and it still knocking/thumping. The engine moves slightly when reaching the last 20-30 degrees of lock in either direction, but only by a small amount (maybe 5mm or so, but the knocking happens regardless of direction of travel) Also some more background information that could be on interest. It is more obvious when coasting - I can hear the pitch change when I get off and on the gas. Learn about this problem, why it occurs, and how to fix it. Nooo I didn't mean to imply there's an "octane sensor". I don't have the other symptoms for subframe bolts. Happens between 30-40mph. Understandably, this is often disconcerting to car owners who want to make sure their car is in good working order and safe to drive before taking it back out on the road. I have done quite a bit of work on the clunk issue since I have the problem on my CTS-V. Miata Noises, Squeaks, & Sounds. The Noise only happens when i'm coasting or just letting off the accelerator. Occasionally, when coasting to a stop the engine just quits. - Same going noise straight or turning while on the gas, but no noise coasting flat or down hill. The Dawg Pound I could feel the knocking/rattling in my hands as I was coasting. All 3 shops were kind enough to do a thorough test drive. my exhaust is not stock and it has 2 slip joint to connect the smaller stock pipe to the bigger. Almost sounds like rod knock, but I just put the engine in and its been doing it since i first started it up. i rebuilt the engine and it only has about 100 miles on it. Doesn't seem to be related to my turning the wheel as it does it on straights and curves. im in this same boat i have this exact rattle when i let off the gas and coast. This noise does not always happen, and sometimes, even after I've heard it, if I turn, brake or otherwise just accelerate, it might not happen the next time I coast. When I got done I drove it again. In this case, you should not use the car until the knocking engine noise has been fully and properly tested, diagnosed and repaired. If I put the vehicle in Neutral and give it gas, no noise. I was told it could just be something stuck under a brake pad, but it seems like more than this. So if the road is very rough, then the noise will be more intense but still the knocking will only begin with in a narrow band width of turn radius where it lives. The knocking sound is much louder than all the other engine noises and it obviously comes from the right side and using. At first I thought it was comin from the top but when i get under it it's alot louder sounds like its comin from the oil pan. I have jacked it up and shook down the front end; all is tight. The noise is not present upon first starting the engine but comes on when warmed up and is only present when moving. It is more obvious when coasting - I can hear the pitch change when I get off and on the gas. Look at an LB7 timing table, and how high the timing goes at 0 fuel. So i changed the front cv axles and there is still a knocking sound. Strange Knocking sound from front end when braking. 6L 3V engine may exhibit a ticking and/or knocking noise after reaching operating temperature, or a rattle upon starting. Very weird noise. I have put it in neutral and it doesn't change at all while coasting at 60 mph. In most cases, diesel purge will quiet all the noises related to your injectors and will soften up the knocking noise as well. Knocking, clicking, ticking sound while coasting 2001 Limited Auto 2WD, stock suspension, 208,000 miles. It is more obvious when coasting - I can hear the pitch change when I get off and on the gas. No sound at idle or when in neutral and clutch is out. Almost rotational noise, thought I was a flat at first, and when I push on the accelerator the noise goes away. It's pretty loud considering I can hear it in the cabin with the windows up. If the tires have recently been replaced or rotated it is possible that the lug nuts weren’t tightened to the wheel correctly. The most recently reported issues are listed below. Hyundai Santa Fe owners have reported 29 problems related to suspension noise (under the suspension category). At low speeds the noise is clearly audible. This time I noticed the noise occurs over 15mph, but stops less than 15mph. At first we thought it might be the fuel pump, but then we noticed that it only happens in 3rd or 4th gear when we are accelerating (and it goes away if we hold the gas pedal down to keep a constant speed). 4th Gen Ram Tech - Ticking sound when coasting? - Hey guys, ive got a 2010 hemi. Just yesterday, I noticed a change in the way the Prius handles when coasting. Sign in to follow this. Unfortunately, I think this is just how they are. As soon as the clutch or accelerator is pressed the sound goes away. It has a knocking noise when decelerating/ coasting that is consistent in speed with the driveline. There is a noticeable lower pitched humming and extremely rapid decelleration, as if breaking, when coasting. Why Does a Bicycle Hub/Freewheel Make Noise? 07. Car runs good. Common among these chassis: They will tick, ping, rattle and they can even produce a snapping sound. There is a clicking noise that comes from the Hub (I believe?) while coasting on our bikes. When I get on the gas, there's a God-awful grinding/winding sound which goes away when I pull in the clutch or simply get off the gas and coast. installed or removed a front traction bar Last time I got underneath I verified everything seems tight along the wheel (tie rods, wheel bearing, etc), and it only does it when I'm coasting (clutch in or out) or decelerating. Today a knocking noise started only when care is coasting. I can sometimes replicate this sound by coasting in second and just putting the clutch pedal in then letting it out and it will make that knocking sound when it catches. Re: Knocking noise from rear suspension. Noise is still there if you roll in nuetral. The following are causes of main bearing noise: Low oil pump pressure. If you have enough oil, have a mechanic check the valve adjustment. The Five Overlooked Car Maintenance Items How Preventative Maintenance Can Help You Avoid Catastrophic Repair Costs. It only makes this noise when the transmission is in gear or reverse. Nothing catastrophic can happen to your engine from this type of injector noise. I own a 2005 Rover 75 CDi Contemporary SE. Maybe that too. Noise disappears when coasting and braking. The transmission makes a noise very similar to the noise a bearing in and idler pulley or the ac compressor would make when its going out. After the clutch has been cycled a couple of times the knocking can also be heard when the clutch is out but pump the clutch a couple of time and the noise goes away. As for the sound seeming to come from the bottom bracket, bicycles are notorious for transmitting sounds through the structure, to fool you about where they come from. They will tick, ping, rattle and they can even produce a snapping sound. i put air in all tires and it still knocking/thumping. About 3 months after purchase a squeaking noise started under the truck, this squeak happens when coasting and then barely touching the accelerator, its an intermittent fault and sometimes does it all day long, sometimes not so much but i have had i. Hi I have a ln106 hilux and have a noise in the rear diff click/knock at idle in first gear about every 3 feet but only when going up a slight incline and goes when accelerate, drained oil no metal a little bit of black sludgy stuff on bung, it's a lsd when I jacked back end up by turning one wheel other one turns the same way. This noise can signal excessive play in the CV-joints or U-joints or excessive backlash in the differential gears, a condition not generally associated with bearings. I am hearing a clunking/knocking noise when I accelerate and decelerate, especially in lower gears. 4 Diesel Auto Grand Scenic has recently started to make a knocking/tapping sound when I am coasting/decelerating. The noise is coming from the main driveshaft and sounds like it is under the tunnel at the rear of the front seat and the noise is} speed related. Whenever I take my foot off the gas it starts to make the noise again. The noise occurs when I go over any uneven surface. It usually happens after a few miles of driving and it’s more pronounced after longer drives. There is a real loud knocking sound coming from what sounds like the torque converter or flywheel area. The noise is also not there when I'm not pressing the gas. Good you figured out the clunk! The STI doesn't come with floaters. As I understand it, an ECU will advance spark to the point of auto ignition (as sensed by the knock sensors), then retard the spark until the knock sensors detect things have quieted down (usually with some added buffer away from the. At first we thought it might be the fuel pump, but then we noticed that it only happens in 3rd or 4th gear when we are accelerating (and it goes away if we hold the gas pedal down to keep a constant speed). Drive shaft noises and possible causes are as follows: Grinding and squeaking from the drive shaft is frequently caused by worn universal joints. All 3 stated verified the sound and said it was a ring and pinion noise from the transaxle on deceleration or possibly the overdrive/final gear is mis-aligned. Listening to the sound it seems to be from the front of the engine ( passenger side) around belts. If I am coasting and put the car in neutral, there is a very slight knocking noise or none at all, but once I put it back into gear, it comes back. However, the constant sound it makes isn't a comforting sound as often as I travel long distances. I am experiencing a pretty loud knocking sound coming from the suspension while driving. Buzzhowl Records – 12th July 2019. A little history about the car – its done 160K kms, is a 1994 model, has the LSD option, was involved in a rear end accident. The RPMs are staying right at 700 and the car isn't over heating. Hi everybody, Been away for a while, but back now and hoping somebody can help! My W210 E320 has a knocking sound from the rear end. My car use to accelerate quietly until today when all of a sudden it makes loud noise when I Loud noise when I hit the gas (possibly from exhaust?) and possible trans problem - RedFlagDeals. With an exhaust leak, the muffling of the noise is cut short, making the noise louder. I've taken it in for a tune-up, mentioned to them there was a clicking sound, but they didn't notice anything (or didn't pay attention), and it still clicks. This noise is more noticeable on acceleration because the engine is working harder, making the noise louder. When a longer chain is needed, use a new chain. What’s happened is all the oil has settled to the very bottom of the engine and it takes a moment for the engine to build oil pressure; the short-lived noise you hear goes away as soon as oil reaches the parts (typically, the valvetrain) that were crying out for oil. The 1987 Chevrolet Nova has 1 problems reported for knocking sound while coasting. Between the connecting rod and the crankshaft, a high-pressure film of engine oil, less than half the thickness of a human hair, keeps moving parts from contacting each other. The knocking sound is very loud and can be felt, and is relative in frequency to the speed I am travelling. Clunking or knocking. The noise happens both when coasting or pedalling, seated or standing. When I am driving and take my foot off the gas to coast there is a knocking. Hi I read in a 1950s edition of Railway Executive "Instruction Book for Standard Steam Locomotives" that when coasting with piston valves, you usually have the regulator cracked and the cut-off set to anywhere between 25% and 40%, but am unclear on the procedure with slide valves. The noise goes away a couple seconds after touching the brakes. Odd Ticking Sound When Coasting To A Stop. How is the knocking noise under these conditions: 1. Whenever I take my foot off the gas it starts to make the noise again. Tonight (first rainy/snowy night of the year!) the noise is remarkably louder and clearly from the right front. I have this car now for 3 1/2 years. Starting about 100 miles ago I began getting a knocking sound from my left front wheel, which was not very noticeable at first, but now is. Passed MOT with no advisories yesterday. A few years ago I had a custom made Bruce Gordon steel frame bike that started making a click whenever I pushed pretty hard while riding in the sitting position. I believe it was one of the lines in the tranny. No coasting in neutral still same, only does it when hot after a run. im in this same boat i have this exact rattle when i let off the gas and coast. 0L, 141k miles that I purchased 3 weeks ago. In some cases the noise may be a normal characteristic of these engines. Over the last few weeks the knocking can be felt on almost every turn even though it is very subtle. Directionally, it also seems to come from the rear-end instead of the engine. There are several reasons that may be causing a strong knocking sound from the. Sounds like a rod knock. When speed is reduced, the shimmy stops, until the same trigger point is again reached. It's best to. If the tires have recently been replaced or rotated it is possible that the lug nuts weren’t tightened to the wheel correctly. Unusual brake noise or braking behaviors should serve as a warning that one of the most essential systems on your car is malfunctioning. If your engine is idling at 600 rpm (and therefore that is the crankshaft rpm), the sound will occur 10 times per second. The car has problems with performance ( nothing major, mostly cold start) and there's a mild knocking sound in anything from the second to the fifth gear. Car is all stock except roush mufflers. I've started getting a grinding sound coming from the front passenger side of my car when coasting and the occasional knocking sound when changing gears. I only hear it, if I'm standing in front of the Scout near the passenger side of the radiator. Rear axle has been making a knocking sound for a couple months. During driving everything is fine. It sounds like it's coming from the rear and sounds like a rumble strip on the highway. It definatly isnt a rod, but thats the sound it makes under a load. I brought it to the dealership and the mechanic said all Nitros do it and. Hissing or sizzling under the hood. No problems on corners and flat straights It sounds like two pieces of metal klonking together. The amount of throttle change to cause this coasting rod knock chuff sound to play is determined by CV201 for DCC or CV203 for DC. It worries me that it only makes this noise when it's reversing under power and not also when coasting. As I drive away I hear a really loud knocking/rattling sound, i pull over immediately fearing that it's my motor. No problems on corners and flat straights. Knocking Noise. The link won't work for me. I'm thinking wheel bearing, but not quite sure. I did some searching and found a similar description but none for a 13 CC with a dsg. One further minor benefit to the use of coasting systems is a reduction in both vibration and noise, particularly in engine-off systems. Squealing noises are actually quite common when it comes to your car, sometimes it can be something very simple and others it can mean you’re in need of a major replacement. My car is making a thumping knocking noise by the front right tire when coasting (2005 Ford Taurus) it stops when i accelarate but continues again when i let off the gas. Source(s):. In this article, I present some of the possible causes of whining noise while accelerating. I have a 2009 Cadillac Escalade 6. I recently replaced my front-left control arm due to a thrashed rear bushing. Its as if the engine got leaner. My 2003 Passat has developed an annoying knocking noise coming from the front passenger side wheel. Another thing you may also notice is GM staggers when pilot turns off and on in the later trucks. yes, could be dirt in the saddle post, that happened to me and i swore the click/crack sound came from the front forks. It's best to. It's only present when I'm accelerating or holding a steady speed. and the biggest time is when i have been coasting and then apply the breaks. Sounds like it is in the rear axle somewhere. 1000 to 2000 RPM. Shortly after fluids were replaced (75W90 for transfer and ATF Dextron for the gearbox), a knocking sound appeared. my car makes a repetitive knocking sound only while coasting (foot off gas, no brake or clutch) or rolling in neutral (foot riding clutch, no gas or brake). Excessive main bearing clearance. Is there a way to prevent it?. i've also had clicking when pedalling which turned out to be the cleat clicking in the pedal (SPDs) as it went round. Are you experiencing whining noise when accelerating your car to high RPM speeds? This seems to be a common problem with many cars. The two common mechanical problems are knocking and a drone sound whilst using the turbo. Specifically, a good way to troubleshoot and determine if you have a problem with the clutch/throw out bearing, or a problem with the transmission. This is going to sound dumb but I've changed many intake manifolds on the focus,escape,and fusion 4 cyl. The use of a hybridised coasting set-up is claimed to have more significant benefits – with some manufacturers stating an overall fuel saving of up to 25 per cent in real-world conditions. 8 started making this noise after some burn-ups. When the bike is coasting the rear wheel makes a ratchet/clicking type noise until you start pedalling again. First-time candidate Tate Mayo grabbed 78 votes to 70 for Keith "Moose" Hale, while Al Braxton garnered 32. Long version: I started getting the light rotational clicking noise after about 6,000 miles. I didn't know if this was normal or not,just sounds like slack in the rear somewhere. A clunk, whine, or howl can signal a worn-out pinion gear, bad bearings, or a faulty gear installation. Try to discribe it some more. 2L EcoTec with 145k on it. Hyundai Santa Fe owners have reported 29 problems related to suspension noise (under the suspension category). I couldn't pinpoint the exact location, but it was definitely coming from rear of the vehicle. cant see anything hitting. my 2002 dodge dakota started to knock when put in 4x4 and only on turns, but recently it has started making a knocking sound going on straight roads, i changed out all 4 ball joints, but still have the noise coming from the wheels, could it be my cv joints? or is it something with the steering or even the transmission? any help on this would be. This sound will generally be the same in intensity whether the engine is idling, operating at high speeds, or under load. Now, after adjusting intake rocker to minimum gap the sound starts immediately but only during a change in RPM at idle or when coasting in 1st or 2nd gear, a no-load condition, but at resting idle the knocking sound goes away. My '02 Accord EX v6 just started making this noise yesterday. The 200 seems to make a lot of power valve racket which is a clacking sound mostly when coasting or part throttle. 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. Birthplace of the Modern Auto Industry. When I ride harder in even lower gears, it doesn't knock. Most of the time you’re better off just heading to a mechanic, but we know how shady some of them can be and it isn’t always in the budget. So my wife and I just got back to MI from a three day vacation in Toronto. Why is my Subaru making a clunking noise when coasting? I have a '98 Subaru Legacy L which has been making a clunking/knocking sound when I'm coasting. what could it be?. CarComplaints. Lower (or bottom end) noises, generally appear as a knocking sound, deeper in tone than something from the top of the engine. The Subaru knock detection system tends to err on the side of caution. It made the noise/grind before and after. Fires right back up when I pop in neutral and turn the key. The knocking is loud enough to hear when the bike is running and coasting along. A couple days ago, I noticed an odd rattling noise up front while coming to a stop. When I grab on to the rear axle by the lug nuts and do a Push/pull motion, it seams to have a bit of play, and makes that knocking sound. Look at an LB7 timing table, and how high the timing goes at 0 fuel. Another thing you may also notice is GM staggers when pilot turns off and on in the later trucks. Yes, got a clunk noise when I'm coasting, but not when I'm accelerating or braking. I've noticed that there is a clunking or knocking sound which i think is coming from the rear of the bike - the frequency of the noise speeds up as the bike does, but i can only hear it at low speeds. From coasting, it "kicks", unless i kind of "ease into" the gas pedal and give it a chance to sort itself out. Anyway you can post a video of the noise? "Several times upon hearing the noise I have shifted the tranny into neutral and raised the rpm to 1500 - 2000 and the noise is still present, but not affected by rpm and the cadence of the "knocking" didn't change. The car is a 55 plate and has done 42k miles, it seems in good condition and the engine runs very smoothly. Maybe that too. Whenever I drive at a constant speed, at say 80km/h, in 5th gear, and I approach a down hill and take my foot off the accelerator to just let my vehicle coast at the current speed, I start to hear like a soft knocking sound from my engine (or gearbox) when the revs drop below around 2500 RPM's. 11 hours ago · There was one contested race on the Tarboro Town Council in Tuesday's municipal election, but whether or not there will be a runoff between the two top vote-getters in Ward 8 remains to be seen. 8 started making this noise after some burn-ups. Another reason for this may be chipped teeth on one. This rear differential noise is described as a heavy clicking type of sound which occurs every eight feet or so. Hey guys (and girls?), My vehicle is an BiTDI Amarok, SC, 2012, 33 000 km's, 4x2. This noise does not always happen, and sometimes, even after I've heard it, if I turn, brake or otherwise just accelerate, it might not happen the next time I coast. This sound will generally be the same in intensity whether the engine is idling, operating at high speeds, or under load. In this article, I present some of the possible causes of whining noise while accelerating. Today a knocking noise started only when care is coasting. -Loud slapping/knocking sound under load -only under load (anything more than a touch), not when coasting, not when in neutral revving, not when in gear w/ clutch revving -sound gets louder with more load, moderately faster (but not hugely) with more rpm/speed. What is That Engine Knocking Sound? You’re driving your truck on the freeway when you hear a rattle increasing in pitch and a bad vibration form, then your own wheel rolls past you. knocking sound in neutral or with clutch pulled in (coasting or stopped at lights), but sound goes away under load or if i simply give it even a little bit of gas. Knock stops if I touch the gas or brake. knocking noise coming from left front wheel at speeds of 10 to 50 km/hr (traction control was. Any help would be. Just the other day i started to hear this knocking sound coming from the back of the Jeep It only makes the noise at LOW speeds (10-25 MPH) And only when I let off the gas (coasting). I think it's been there for a while, I just couldn't really hear it well over the alternator noise, and now that that's fixed I can hear it. Sounds like a rod knock. Hey all, Looking for suggestion as to what might be causing a knocking/clicking sound when coasting? It does not make a noise when my foot is on the gas or breaks and the noise gets faster/slower depending on the speed. There is a real loud knocking sound coming from what sounds like the torque converter or flywheel area. My car feels juddery and there is a knocking noise coming from rear when I accelerate(and feels a bit lumpy) Could this be the diff? When coasting the diff does not make any strange noises only when accelerating at the low rev range. I am hearing a clunking/knocking noise when I accelerate and decelerate, especially in lower gears. I didn't know if this was normal or not,just sounds like slack in the rear somewhere. I cannot duplicate while sitting still with brakes or EB brake applied in forward or reverse. The noise may diminish some when the brakes are gently applied. installed or removed a front traction bar Last time I got underneath I verified everything seems tight along the wheel (tie rods, wheel bearing, etc), and it only does it when I'm coasting (clutch in or out) or decelerating. Hi Can anyone help me ? yesterday heard a slight clonking noise from the n/s/f wheel area ! but as we carried on the journey the noise seemed to get worse - especially on right hand lock - didn't worry to much as only had a Mot 46 miles ago - but the noise got louder on the way home ! clonking/rubbing noise even when coasting out of gear - still more prominent on right hand lock - so have. Re: Knocking noise from rear suspension. I have heard of many people putting less than 91 octane and then getting a knocking sound in the engine. Noise when coasting in gear at low speed Owners Forums for Ford and Volkswagen MPVs / SUVs Ford Galaxy S-Max C-Max B-Max Tourneo Connect / Volkswagen Sharan Touran Tiguan Touareg Caravelle / SEAT Alhambra Alteca. Think I'll run it 'till it gets worse and go from there - even if needed looks like 'boxes are aplenty on the bay with low miles too so if I have to swap a box that's fine - as long as i am convinced that's what it is!. I am hearing a clunking/knocking noise when I accelerate and decelerate, especially in lower gears. The noise goes a lot quieter when the clutch is pressed and when coasting in gear with no power applied. I have had it back to them and they say they can see nothing wrong. yes, could be dirt in the saddle post, that happened to me and i swore the click/crack sound came from the front forks. This has happened twice over the past few weeks, but I can't seem to reproduce. It's not a ticking or a clanking knock. good clean and a bit of lube on the pedal worked well (a workmate worked out what it was AFTER i had had it all stripped down at the shop, cleaned, lubed and. Now, after adjusting intake rocker to minimum gap the sound starts immediately but only during a change in RPM at idle or when coasting in 1st or 2nd gear, a no-load condition, but at resting idle the knocking sound goes away. Hearing an increase in the level of humming noises or gear grinding is a way of knowing almost for sure that you have a worn out differential. Hi guys, For a couple of days now I've had a really annoying knocking noise coming from then engine bay - I think it's from the drivers side. The noise occurs when I go over any uneven surface. Hey guys (and girls?), My vehicle is an BiTDI Amarok, SC, 2012, 33 000 km's, 4x2. The noise occurs when I go over any uneven surface. My '02 Accord EX v6 just started making this noise yesterday. You tend to hear it whenever coasting in a low gear at around 2000rpm then slow acceleration. Example is, if im 2wd and are going from 0 and up. Initially I thought it was something with the speakers but when I shut off the radio power it still continued. Sounds like a loose road wheel (if you have ever had / heard that). I tried having the dealer check on the tsb for my 2016 6. I will compare the noise to a quiet diesel motor, or a metal on metal sound like when a bearing is going out,. Took it to my dealers yesterday and got new strut mounts, bearings and insulators. When this happens, it's time to get it to a mechanic. It's quite a fast tap, about 2/3 per second. I don't think it's the engine because it doesn't make the noise when the clutch is pushed down or in neutral being reved to 1,500ish. Knocking sound from front end when brake was applied, especially making a left turn at low speed with brake applied. I have a 2009 Cadillac Escalade 6. reverse-load, engine-braking coasting down a hill in gear? 4. my car makes a repetitive knocking sound only while coasting (foot off gas, no brake or clutch) or rolling in neutral (foot riding clutch, no gas or brake). Knocking from the engine compartment. It started to miss ocossionally under load but showed no codes. 0L, 141k miles that I purchased 3 weeks ago. I have a loud knocking noise coming from the engine. This noise only comes when the brakes are applies softly, just enough to slow the car down. It is slower when the car is traveling at low speed and gets faster as the speed increases. I have a 07' XLT Crew cab, 8. It also tends to occur during accelerating at low speeds or once I've come off the gas pedal at low speeds. Similar noise when in gear, a little louder maybe. I have heard of many people putting less than 91 octane and then getting a knocking sound in the engine. All temps, oil pressure, power, smoke, etc stayed normalthe noise was the only thing new or out of the ordinary. Knocking Noise. Mike in Colorado. There are several reasons that may be causing a strong knocking sound from the. 1000 to 2000 RPM. OK then, did over 200 miles yesterday, and on the last few miles home, travelling at low speed in traffic, there was a knocking noise form the front of the car, it seemed initially to be coming on and off the throttle, but further investigation said not. I took the car for a spin on the beach road today and about 15 minutes into the drive when I applied the brakes there was a knocking noise. 4L 3-valve engine may exhibit a ticking and/or knocking noise after reaching normal operating temperature. Sent from AutoGuide. It makes no such noises in any forward gear, and the noise appears to be coming from the front right wheel area. I always go in and bring it down to sane levels for coasting so you don't get that knocking sound during coasting.