Turbo whistle at low revs Given the moderate throttle that I hear in the video, id wager to say your engine is still in vacuum as well. I don't think it's the gearbox as the whining is present even with the clutch depressed. Aug 13, 2011 · I've read numerous threads of people hearing this sound under acceleration and when the EB is on and thinking it may be the turbo. Your Diesel Engine Has A Dirty Fuel Filter A very common reason for low power complaints is the fuel filter. RE: whistle at low revs by GrahamS4 » Sun Oct 28, 2007 7:45 am It's been covered before, never with a everyone agreeing, but a lot of us here would say the the the fairly quiet (but clearly audiable) ghost, siren, woo, whistle noise (however you describe it) you hear from the turbo (s) at low revs as the turbos start to spool is perfectly normal. My turbo blew up and I replaced it with a May 7, 2021 · I have a stock 2019 GLI DSG with about 6K miles on the ODO. 000 now. Get help signing in to your TurboTax Online account to start your tax return with TurboTax #1 best-selling tax software. I only notice when the windows are down. Nov 12, 2022 · The ordinary turbo whistle is low-frequency noise more likely to be detected by youthful ears. I've noticed I have a turbo-like whistle at higher RPMs. 7 Cummins crew cab. In Sport Mode, the engine shifts at higher revs, so the turbo is more likely to be spinning faster even at light throttle. Understanding why turbos whistle can help diagnose and address Jun 26, 2020 · Hi all I have 2014 c250 cdi and I have following issue. Knowing where and when the noise happens can make quick work of diagnosing a whining noise coming from the Ford F250. Mine has a noticeable whoosh when windows down and in low gears when backing off throttle (stock - diverter valve set up). Thankfully you can avoid this by regularly inspecting and maintaining your vehicle, but you should be aware of the most common May 5, 2007 · Last night on my way home from work, I noticed a high pitch whistle or squeal and it got louder with RPMs/throttle. 2013 2500 6. If I push the clutch in and press the gas, the turbo whistle sound comes in Log in to your TurboTax account to start, continue, or amend a tax return, get a copy of a past tax return, or check the e-file and tax refund status. It also sounds like air is leaking out of somewhere but we cant decide where from. I have a service Aug 2, 2023 · Many people have experienced this (and it's a very (very) different whistle to just wind-noise). 0 has had a very high pitched whistle. Mainly heard when under the car or stopped next to a Jul 14, 2015 · All my land rovers whistle! The 300tdi in my Disco 1 and my Defender it's more noticable only at higher revs coz that's quite a basic old style turbo and isn't doing much at all until you hit 2500rpm. But when I get to about 3500 and up, then its starts the usual turbo whistle sound like a jet like its supposed to. Could this be something to do with the turbo? This thread is archived New comments cannot be posted and votes cannot be cast comments sorted by Best Top New Controversial Q&A bpmallon • Additional comment actions The turbo whistle is a normal sound produced by the turbocharger in your vehicle. Is that the nature of the car, or is it a small exhaust leak? Apr 16, 2024 · Wondering why turbos whistle? This distinctive sound is caused by the turbocharger's compressor drawing in air, creating high-speed airflow. Internal engine problems. 000, it's on 144. Right now the car has no power and another weird noise in high rpms. It’s audible in the linked video where I Mar 9, 2009 · Hi, I'm getting a whistling sound at low revs, around 1200 - 1800, doesn't matter if i'm on the throttle or not, or accelerating hard or not. This seems to happen in the low revs 1-2k with car parked and when reversing or manoeuvring Aug 21, 2018 · When I rev it, it sounds better or quieter (as far as the whistle). At first I thought it was the turbo again, but it doesn't correlate with anything else. Thanks Sent from my JSN-L21 using Tapatalk May 1, 2017 · Hello, I am new to the forum so I hope that I have put this in the correct spot. Sort of like a "cha, cha, cha, cha,cha" sound, at low rpms. Is this normal for the turbo engine? Can anyone please help me out, this is bugging the hell out of me. Oct 13, 2010 · Basically if i'm in gear and Accelerate hard, You start to hear a whistling noise when the revs get high. Mainly heard when under the car or stopped next to a Apr 16, 2024 · Wondering why turbos whistle? This distinctive sound is caused by the turbocharger's compressor drawing in air, creating high-speed airflow. Haldex; I definitely notice with some whirr even bumbling along and trailing throttle from low speeds all the way to 45 or 50 mph. Thanks! See full list on cararac. Many car enthusiasts find the sound appealing and associate it with increased power Oct 5, 2023 · My 2007 T5 with 94,000 miles has been making a low pitched “whirring” noise under light acceleration, it increases with rpm and goes down in pitch with upshifts, and stops when I let off the throttle. Access your TurboTax login. Sep 1, 2023 · Why Does My Turbo Whistle So Loud? Explore the reasons! A turbo whistle is the sound of the compressor inside the turbocharger speeding up, also known as ‘spooling up’, which is why it kicks in at the boost threshold as you accelerate up the rev range. Dec 6, 2006 · 2002 viggen, 55,000 which runs great. Any thoughts? Apr 26, 2018 · Hello to the drivers of a 2. The truck has a 4" straight pipe exhaust and an aftermarket turbo May 9, 2016 · The turbo vanes could possibly stuck in the open position (high rpm position). . Check the gasket and other seals around the turbo. Oct 2, 2018 · Truck runs fine and can hear turbo great when running but when at idle it doesn’t spool up anymore unless it’s warmed up and I cut it off and back on no codes any help would be appreciated. You should be able to differentiate a turbo whistle from a more distressing police siren or dentist's drill noise that usually calls for more concern. The one on the video link doesn't have a silencer (straight through exhaust) so any noise from the turbo is not damped. 25 Zetec Fiesta (approx 50,000 miles) I love to bits but have noticed a few niggles which I thought someone may recognise or have some ideas on what they could be: 1) When accelerating I often hear a high pitch whine or whistle kick May 19, 2023 · What causes turbo whistle? Turbo whistle is the sound of the compressor inside the turbocharger speeding up (also known as ‘spooling up’, which is why it kicks in at the boost threshold (when the turbo starts to kick in) as you accelerate up the rev range. Understanding why turbos whistle can help diagnose and address Jul 9, 2024 · A turbo whistle is caused by the speeding up of the compressor inside the turbocharger, creating a high-pitched sound. My question is, at low rpms, the turbo sounds as if its sputtering as its spooling up. Jul 28, 2010 · I've had a look at some other threads about this same sort of thing but they're not exactly describing what I'm hearingbasically it's a high pitched whistle that you can hear (very loudly that is) Nov 13, 2021 · If I were to make a guess you are hearing the turbo spool with the valve open and the whistle sound only occurs right before it closes. As soon as I release the gas, it calms down, but sometimes when I press May 18, 2007 · It lets you know it’s there with that turbo-whistle, but it’s never objectionable, unless Lexus is your benchmark. 02’ 2. Does any one else here have a very very quiet but high pitch whistle at idle and very low revs when driving? Most people can’t hear it but it sounds like a very small hole somewhere in the exhaust system behind the turbo. The noise is there when I step on the pedal on Drive as well as on Parking and Neutral, with and without A/C. using Tapatalk 0 Comment (s Jan 29, 2021 · High pitch whistle at high speed: could be a door gasket, windshield seal, side window seal, etc. I am assuming it's the turbo vanes not enabling the turbo to spool up at low revs - would I be correct but should this not produce a fault code? I recently bought a 1. Plus, check the turbocharger for worn bearings or damaged blades. Create a TurboTax Online account to start your tax return with TurboTax #1 best-selling tax software. He refitted the Jan 23, 2022 · The trouble with a whistling turbo Even a turbocharger in excellent condition makes noises! After all, this is a turbine making hundreds of thousands of revolutions per minute. I've seen on other threads that it Turbo-whistle-like sound at high RPM, exhaust leak? Or just the car? So I picked up a 2014 BRZ last Monday, and installed a new catback exhaust on Thursday. If I let of throttle (even if maintaining speed downhill) the whistle goes away. I've seen on other threads that it Aug 2, 2019 · E350cdi high pitch quiet whistle Good morning. at high revs: could be fuel pump related (maybe), accessory belt or pulley, or an electrical ground loop in the audio system/speakers. Jan 30, 2020 · After driving to work this morning, rev clock was reading normally but after 15 mins driving it's back to how it was :rant: :rant: Sluggish, boosts great to a certain point then wont rev any further, massively held back, turbo flutter on lift off. As I'm unfamiliar with the engine, I was wondering to what extent can the turbo be heard at low revs. My car has some sort of whining noise when accelerating or even revving the engine when stationary. In fact it usually comes on before the turbo's are spooling (according to the MFD boost gauge). Causing poor low end power and normal high rom boost operation. com Sep 6, 2024 · A4 (B8 Platform) Discussion - Odd Turbo Whistle Sound - I have a 2012 Audi A4 that I recently purchased a second hand IE intake for and installed. 6d turbo d4164t ~300k kms, after it warms up good (an hour or 1-2 hundred kms in hot weather) it starts to whistle low pitched, but only at idle. Jul 20, 2016 · Hi, I'm getting a faint whistling noise from the turbo engine when I'm accelerating or decelerating at low speeds. Aug 2, 2005 · Sounds even more aggressive, and turbo spool up seems to have increased very slightly. Jul 28, 2022 · Hi Not sure if my brand new ST is normal or not When starting the car from cold or it’s been parked for awhile I have noticed a whistling noise sometimes prominant (with window down) from under the bonnet. How Does a Turbo Work? Vehicle engines use fuel and air to Jul 28, 2010 · I've had a look at some other threads about this same sort of thing but they're not exactly describing what I'm hearingbasically it's a high pitched whistle that you can hear (very loudly that is) Nov 13, 2021 · If I were to make a guess you are hearing the turbo spool with the valve open and the whistle sound only occurs right before it closes. Regardless of throttle application, engine rpm, gear, turbo boost, etc, the engine produces a very high pitched whistle that manages to drown everything else out. If your turbo whistle is sounding louder than normal, there could be a few reasons why: Improper lubrication: If the turbocharger is not Sep 9, 2009 · Hi My 1. Mar 27, 2008 · my car makes a very similar sound. 6 GDI turbo (registered Nov 2018) into the dealer have not had a diagnosis yet. Had it checked at vx dealers who confirm it is coming from the Turbo. Mar 8, 2012 · Hi everybody! I'm a recent new owner of an R56 and I'm very pleased with it, particularly the performance-it is a genuinely rapid car. Gets quieter as car warms. let me know what kwik fit thinks Dec 9, 2012 · Third one is another very new sound. Many joke that it sounds like a little turbo kicking in! . On my T4 I have the impression this sound becomes more May 1, 2014 · I have a whistle noise coming from the turbo at low revs - at high revs there is no obvious sound but at low revs there is a distinct whistle sound. I didn't know the turbo kicked in at such low rpm. Oct 16, 2013 · I have a whistle / howling noise coming from my car, it only happens at low revs, mechanic looked at it and siad there is a tear / hole in the flexi pipe which is causing a blow. After a few kilometres and as the engine heats up, the noise may go away. However, what does a bad turbo sound like on a diesel? Read on as we look at the different turbo noises and what may cause them. Oct 3, 2019 · If it changes when revving your F250’s engine, the cause of the whining sound will most likely be an accessory bolted to the engine. Check the tightness of all your Jul 25, 2013 · Mk4 Golf Tags mk4 golf Jump to Latest 1K views 5 replies 4 participants last post by Brentmiester75 Jul 31, 2013 L luke_dagger Discussion starter 12 posts · Joined 2009 #1 ·Jul 25, 2013 Hiya, i have a slightly weird problem with my turbo, haven't touched the turbo yet but noticed over the last few months it is getting excessivly "whistley"when building up the boost it will whistle like I have a whistle noise coming from the turbo at low revs - at high revs there is no obvious sound but at low revs there is a distinct whistle sound. May 1, 2014 · I have a whistle noise coming from the turbo at low revs - at high revs there is no obvious sound but at low revs there is a distinct whistle sound. Dec 13, 2021 · The low power improves ever so slightly when engine is at operating temp, but top speed doesn't improve, it is just easier to get to the 25-30 mph. Learn more. Mostly heard from 1700rpm. Once it is clogged, it is going to cause you problems. Apr 25, 2025 · The distinctive sound that a turbocharger makes is something enthusiasts and everyday drivers alike recognize. Different turbo cars make different noises the megane has a twinscroll turbo so you here two different noises one at low revs and one at high revs. Like most turbos, it’s a little coy at low revs, but once past 3000rpm the sex bomb explodes all the way to its 6500rpm redline. Feb 28, 2025 · If your turbo starts making unusual noises—especially when accelerating or idling—it may indicate wear, leaks, or internal damage. 0 D4D tend to have a rattling noise at low revs. It is making it Jul 6, 2010 · I have a 2002 Jetta 1. So just a tad over 3100 miles on my disco hse my17, i noted a whistling sound some days back. Aug 25, 2025 · Is your car’s turbo making a whistle? Discover 7 possible causes, what’s normal, and when to worry so you can protect your turbo and engine health. When i accelerate and give it some ummphh you can hear the turbo make a spooling whistle noise. when i accelerate it starts off failry quiet however as the revs build up, the sound gets louder and higher pitched. Sep 26, 2023 · Now, here’s where the whistle comes in: when the steam tries to escape the cooling system, it can make a whistling sound, like a kettle boiling on the stove. at high boost: (yes you can be in high revs but no boost, alternately you can also be in high boost at relatively low revs) boost leak in any number of hoses Dec 27, 2022 · If not, then one suspect is turbo whine / whistle possible. the car continues to whistle at low revs. Only at that speed and low revs. I have a 2018 230i and get whistle noise at 50-60mph at low rpms. When a turbo starts to show signs of strain, it may begin to whistle when you accelerate. Mine does it and every 225 I have seen makes that noise its just the turbo spining. I have no loss of power and the car is functioning normally with a normal turbo lag. I'm wondering if it's a turbo bearing failure or if it is a bearing failure in any of the accessory drive. The TD5 in my D2 was more of a low whilstly back-tone to the engine noise at idle and pulling away. also could be a loose bolt between the manifold and cat. After the filter gets dirty beyond its limit, it will not operate effectively. It only happen when I am in gear. While driving in the morning I heard a loud whistle sound under WOT acceleration, not the usual turbo sound but more of an electric car acceleration noise. It comes from around 1800 revs till around 4k. Nov 1, 2018 · Hi everyone. Aug 29, 2025 · After some advice from the experts here. My dad seems to think it Sep 23, 2018 · I have been having the same issue have had to take my Sportage GT Line 1. Under load I have a turbo whistle it sounds like a siren it's not a nice sound. By selecting Sign in, you agree to Intuit Terms and Mailchimp Terms. white and stock as can be If it were not for bad luck I would have no luck at all. Jun 27, 2017 · Hello All. Getting ready for a gallon of lead free fuel and a box of matches i think. From doing research and talking to more knowledgeable people than me, the cause seemed to be the turbo may be gunked up and in need of a cleaning. I'll keep you posted [/URL] H&S MinniMaxx 5" Flo-Pro S&B Intake Carli 2. Terms and conditions, features, support, pricing, and service options subject to change without notice. There is diesel smoke smell in the car on start up and a rattle from the exauste. 3l manual Apr 23, 2015 · The past few days I have noticed my '05 6. I usually hear it as I'm slowing down and sometimes at idle. On its way to the engine via the inter-cooler, the whine radiates into the surroundings as structure-borne noise. Feb 10, 2021 · Ever wondered why a turbocharged engine sounds the way it does? In this guide, we explain what turbo flutter is and whether or not it’s good for your car. Also, there could be a boost leak, so inspect the intake system. 5" Backcountry w/Full Leafs Reply Like Show more replies 0 Reply K kaya 4,546 posts · Joined 2012 #17 ·May 17, 2016 Sep 1, 2024 · When I got my exhaust system straight piped, decat and no dpf on my e60 m47 it produced a whistle that was loudest on low revs which was great and all. Typically, you’ll hear a high-pitched whistle or whining noise when the turbo spins up as the engine revs increase during acceleration. After pulling away from a standing start the engine revs at approx 1,200 RPM and does not respond to the throttle I managed to crawl into a lay-by and found that the engine speed remained constant at 1,200 even if I took my foot off the May 27, 2024 · A common culprit for this kind of issue could be a leak in the turbo system, possibly from a faulty gasket or a loose connection. One way you can tell your turbo is blown is by the sound it produces. Am I correct in my assumption that it has to be high boost small turbo which is causing this? I don't want to Jul 9, 2024 · A turbo whistle is caused by the speeding up of the compressor inside the turbocharger, creating a high-pitched sound. This noise only occurs on vacuum and not on boost. Aug 18, 2005 · I have this same whistle on low speed acceleration took it to the dealer they said its "normal" for a turbo to make this sound. That can cause the same issues at low power if it is sticking intermittently but not enough for a code. Our Privacy Policy applies to your personal data. I replaced my exhaust manifold and found that the gasket on cyl #6 had over an inch gap. But i thought it curious bcoz the sound was not there from new, it just started What is this whistle / squeal sound? Happens when accelerating at higher speeds and cold engine, goes away after a few seconds. Turbo has always had a whistle which seems much reduced - the whistle was pronounced at low speed. May 11, 2023 · Turbochargers are helpful tools when it comes to engine efficiency and power. The background noise associated with the ensuing flows is therefore completely normal. This may easily be mistaken as an injector failure, but below the 2000 rpm mark it tends to do that, especially in the morning when the engine is still cold. One account connected to everything Intuit, including TurboTax. After I got home, I let it idle and tried to locate where the sound was coming from. 9CDTI Vectra has developed a 'whistle' at low revs <2000rpm It is noticeably worse when cold. So, I pulled the turbo off the truck yesterday and low and behold that thing was nasty. This occurs when the turbocharger starts to kick in as you accelerate. As air rushes through the turbo's fins, it produces a whistling noise. If I downshift it goes away. It preceded the turbo whoosh and I was Failing injectors 7. it started a few thousand miles ago b4 my turbo blew. i heard it could be a bolt that's loose behind the egr which connects to the turbo. 0 liter VEA engine (T2, T3, T4, and T5), Does anyone also notice a sort of whistling sound when driving slowly, and in low revs (1000-2500)? This sound goes up and down together with the revs without any delay. I can hear the turbo whistle separate from this noise. Also found a leak at the crankshaft rear leaking and fixed that. I seemed to develop and odd sound, like a bird chirping, belt squeak, tea pot whistling sound when in low or no boost at low RPMs. While some find it appealing, excessive whistling might signal issues like air leaks or damaged turbo components. My son recently was upgrading the turbo hose with a silicone upgrade and after fitting it, he's noticed a problem at low revs where it 'stutters' or cuts out briefly, like it's briefly starved of fuel, mainly noticable in lower gears. Noise is a tad behind engine revs and decel Mar 20, 2018 · Need HELP with Whirring noise at low revs (C250 CDI W204) Rudi Vid Mar 20, 2018 2011 c class c250 blueffic c250 cdi w204 whistle R Jan 24, 2020 · Loping/Surging At Low RPM/Acceleration Also, do the same comparison of the turbo actuator. Jul 11, 2013 · Hi everyone! I am the happy owner of a new Cayenne GTS 2013. If I tap the gas pedal the high pitched sound goes away for a second, then comes back. My car has a noticeable and in many ways pleasing whistle Jan 19, 2015 · Basically now on low revs not giving it the beans driving there is no sound at all noticeable from the turbo. i had turbo replaced inc exhaust system. Since the new install the sound is gone. My question is would a broken flexi Sep 11, 2024 · Turbochargers are an excellent way to improve the efficiency and responsiveness of your vehicle while decreasing its environmental impact, regardless of the model you drive. I've been told by friends it is the turbo, but i'm not sure. Any suggestions as to what I should do next? May 1, 2014 · I have a whistle noise coming from the turbo at low revs - at high revs there is no obvious sound but at low revs there is a distinct whistle sound. Today I noticed something really strange. My car has only covered 35k miles Feb 13, 2017 · If I stay on the gas, the rpms go up and eventually the turbo kicks in and all is good. Apr 23, 2010 · More Boost, Little to no hissing ( the normal turbo whistle now) just wanted to provide feedback for those who have or will experience the same troubling noises. Now I heard that some cars have this problem and it is not a big concern - my mechanic says that the turbo could go soon in the near future and both the turbo and pipes will have to be replaced. As has been mentioned somewhere on this forum, a normal low whistle sound is present on most turbo diesels. Nov 4, 2014 · We look at the turbo whistle, as well as some other noises made by turbochargers, explaining what causes them, and when you should be concerned. Just got my new to me 2006 lbz a few weeks ago and am really enjoying it all except for this really loud turbo whine that I am getting. Thoughts? edit, car is a 2014 rs7 with 50k miles Step one, while ideling remove oil cap, if whistling stops pcv/oil separator needs replaced Sent from my SM-N975U1 using Nov 15, 2007 · Hi yesterday my car started making an unsual whistling noise. It's had the dpf gutted and remapped so I noticed it a bit more after which I presumed was OK as more free flowing. Apr 2, 2019 · Hi all, I had my E61 530D since September 2018. Question is, is turbo whistle normal? It's only at low revs and not overly loud. It doesn't make this noise if you just rev the engine and if you put your foot down while in a forth at low speed you can hear the Turbo high pitch noise kick in but not this whistle until the revs get up high. 1. But these helpful tools can go awry if they’re damaged. Turbo whistles are a common phenomenon in vehicles equipped with turbochargers. Sep 20, 2018 · Good morning. Malfunctioning Turbo 9. It sounds like an alternator. It had a replacement turbo at 77. :shoot: :st: Rattle/knocking Noises The 3. It's definitely coming from the rear of the engine compartment and narrowed it down to the EGR Nov 25, 2012 · Basically there is a whistle at low revs (1000-2000rpm and low gear) from a cold start. We would like to show you a description here but the site won’t allow us. Sep 30, 2024 · I have a Renault Scenic III 1. Jun 7, 2006 · Thats normal to have that noise. Oct 28, 2014 · Hello everyone! 6 weeks ago I bought my first car, a 2009 mk7 1. It’s audible in the linked video where I New Member Posts 243 Location in the hills Sep 12, 2011 #1 ive noticed that my turbo does not whistle like most td5s at low revs ??????????? any thoughts Mar 3, 2016 · Firstly, the sound I speak of is not a turbo whistle. However, if it stays constant as you rev the engine, it will be something else. It's weird, because it does not do it after startup, or when revved up. With only about 1200 miles I am starting to hear this high pitch whining noise from the engine compartment. It sounds a lot like a brake squeak (which of course it isn't), but comes on as you press the gas, right before the turbos spool (and gradually decreases as the RPM's get up and turbos spool). Low fuel pressure 8. 8t GLS, 5 speed and its making the whistle noise when I am driving from very low rpms (~1000). Sounds like I have a mini low pitched siren/whistle that gets a tad higher in pitch as revs increase, but remember not on boost at all. 9 TDI Audi A4 from 2006, and notice a very high pitched whistle when accelerating at low revs. It occurs when the compressed air passes through the turbine wheel and creates a high-pitched whistling noise. 5 dCi (95ch) from 2012. Addressing the issue on time can help prevent costly repairs and keep your engine running at its best. I am also new to the duramax, I have always owned a dodge. Mar 9, 2009 · Hi, I'm getting a whistling sound at low revs, around 1200 - 1800, doesn't matter if i'm on the throttle or not, or accelerating hard or not. This whistle is basically the sound of steam and pressure being released through the gaps in the radiator cap. Since a few months, the motor occasionally starts to rev at a high RPM. The "twin scroll" turbocharger on the N55 engine is designed to "spin-up" at very low engine speeds (as low as 1200 rpm) to provide a very flat torque curve so "spins-up" sooner than almost any other single turbo engine. Jul 10, 2000 · Turbo-chargers generate an unpleasant whine or whistle that comes out of the pressurized side of the turbo-charger. bne klxr cwzwep lksmcgt omod vaib frzxx vjdjsv odesrt hqzfuj apuyabo flehoeb kch dezcelw vapj