Turbo whistle at low revs 3l manual Apr 23, 2015 · The past few days I have noticed my '05 6. It also sounds like air is leaking out of somewhere but we cant decide where from. I don't think it's the gearbox as the whining is present even with the clutch depressed. 1. As I'm unfamiliar with the engine, I was wondering to what extent can the turbo be heard at low revs. 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. Jun 7, 2006 · Thats normal to have that noise. 000, it's on 144. It is making it Jul 6, 2010 · I have a 2002 Jetta 1. The TD5 in my D2 was more of a low whilstly back-tone to the engine noise at idle and pulling away. at high revs: could be fuel pump related (maybe), accessory belt or pulley, or an electrical ground loop in the audio system/speakers. Sep 30, 2024 · I have a Renault Scenic III 1. 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. 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. 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. let me know what kwik fit thinks Dec 9, 2012 · Third one is another very new sound. white and stock as can be If it were not for bad luck I would have no luck at all. Get help signing in to your TurboTax Online account to start your tax return with TurboTax #1 best-selling tax software. Learn more. Had it checked at vx dealers who confirm it is coming from the Turbo. This occurs when the turbocharger starts to kick in as you accelerate. Access your TurboTax login. 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. 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. Apr 2, 2019 · Hi all, I had my E61 530D since September 2018. 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. Aug 29, 2025 · After some advice from the experts here. Question is, is turbo whistle normal? It's only at low revs and not overly loud. But these helpful tools can go awry if they’re damaged. 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. Mine has a noticeable whoosh when windows down and in low gears when backing off throttle (stock - diverter valve set up). 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. 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. 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. 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. As air rushes through the turbo's fins, it produces a whistling noise. Check the gasket and other seals around the turbo. 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. 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. My question is, at low rpms, the turbo sounds as if its sputtering as its spooling up. If I let of throttle (even if maintaining speed downhill) the whistle goes away. 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. 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. If I tap the gas pedal the high pitched sound goes away for a second, then comes back. Sep 20, 2018 · Good morning. Addressing the issue on time can help prevent costly repairs and keep your engine running at its best. . May 11, 2023 · Turbochargers are helpful tools when it comes to engine efficiency and power. 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). 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. the car continues to whistle at low revs. The one on the video link doesn't have a silencer (straight through exhaust) so any noise from the turbo is not damped. I only notice when the windows are down. Dec 6, 2006 · 2002 viggen, 55,000 which runs great. Plus, check the turbocharger for worn bearings or damaged blades. It's weird, because it does not do it after startup, or when revved up. By selecting Sign in, you agree to Intuit Terms and Mailchimp Terms. 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. But when I get to about 3500 and up, then its starts the usual turbo whistle sound like a jet like its supposed to. :shoot: :st: Rattle/knocking Noises The 3. 9 TDI Audi A4 from 2006, and notice a very high pitched whistle when accelerating at low revs. Any thoughts? Apr 26, 2018 · Hello to the drivers of a 2. 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. 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. 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. It sounds like an alternator. 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. 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. 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. This whistle is basically the sound of steam and pressure being released through the gaps in the radiator cap. I'll keep you posted [/URL] H&S MinniMaxx 5" Flo-Pro S&B Intake Carli 2. 2013 2500 6. Since a few months, the motor occasionally starts to rev at a high RPM. Nov 1, 2018 · Hi everyone. At first I thought it was the turbo again, but it doesn't correlate with anything else. Turbo whistles are a common phenomenon in vehicles equipped with turbochargers. 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. Jun 27, 2017 · Hello All. The noise is there when I step on the pedal on Drive as well as on Parking and Neutral, with and without A/C. 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. Also found a leak at the crankshaft rear leaking and fixed that. It preceded the turbo whoosh and I was Failing injectors 7. While some find it appealing, excessive whistling might signal issues like air leaks or damaged turbo components. After I got home, I let it idle and tried to locate where the sound was coming from. 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. 0 D4D tend to have a rattling noise at low revs. 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. With only about 1200 miles I am starting to hear this high pitch whining noise from the engine compartment. Internal engine problems. 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. 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. If I downshift it goes away. I have a service Aug 2, 2023 · Many people have experienced this (and it's a very (very) different whistle to just wind-noise). Mar 27, 2008 · my car makes a very similar sound. I have a 2018 230i and get whistle noise at 50-60mph at low rpms. it started a few thousand miles ago b4 my turbo blew. 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. 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. Right now the car has no power and another weird noise in high rpms. 5 dCi (95ch) from 2012. 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. Typically, you’ll hear a high-pitched whistle or whining noise when the turbo spins up as the engine revs increase during acceleration. I've noticed I have a turbo-like whistle at higher RPMs. Causing poor low end power and normal high rom boost operation. Jul 10, 2000 · Turbo-chargers generate an unpleasant whine or whistle that comes out of the pressurized side of the turbo-charger. 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 occurs when the compressed air passes through the turbine wheel and creates a high-pitched whistling noise. Low fuel pressure 8. One account connected to everything Intuit, including TurboTax. It comes from around 1800 revs till around 4k. My car has some sort of whining noise when accelerating or even revving the engine when stationary. Feb 28, 2025 · If your turbo starts making unusual noises—especially when accelerating or idling—it may indicate wear, leaks, or internal damage. Knowing where and when the noise happens can make quick work of diagnosing a whining noise coming from the Ford F250. It had a replacement turbo at 77. I've seen on other threads that it Aug 2, 2019 · E350cdi high pitch quiet whistle Good morning. 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. 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. When i accelerate and give it some ummphh you can hear the turbo make a spooling whistle noise. 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. I replaced my exhaust manifold and found that the gasket on cyl #6 had over an inch gap. 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. Jul 20, 2016 · Hi, I'm getting a faint whistling noise from the turbo engine when I'm accelerating or decelerating at low speeds. 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. 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. 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. Mine does it and every 225 I have seen makes that noise its just the turbo spining. Thanks! See full list on cararac. Only at that speed and low revs. Understanding why turbos whistle can help diagnose and address Jun 26, 2020 · Hi all I have 2014 c250 cdi and I have following issue. 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). 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. 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. 7 Cummins crew cab. After a few kilometres and as the engine heats up, the noise may go away. 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. 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. i heard it could be a bolt that's loose behind the egr which connects to the turbo. Jul 11, 2013 · Hi everyone! I am the happy owner of a new Cayenne GTS 2013. 02’ 2. also could be a loose bolt between the manifold and cat. when i accelerate it starts off failry quiet however as the revs build up, the sound gets louder and higher pitched. After the filter gets dirty beyond its limit, it will not operate effectively. Sort of like a "cha, cha, cha, cha,cha" sound, at low rpms. I have no loss of power and the car is functioning normally with a normal turbo lag. 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. 6 GDI turbo (registered Nov 2018) into the dealer have not had a diagnosis yet. 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. Terms and conditions, features, support, pricing, and service options subject to change without notice. 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. I can hear the turbo whistle separate from this noise. 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. Aug 2, 2005 · Sounds even more aggressive, and turbo spool up seems to have increased very slightly. 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. 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. So just a tad over 3100 miles on my disco hse my17, i noted a whistling sound some days back. When a turbo starts to show signs of strain, it may begin to whistle when you accelerate. 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. 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. 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. 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. In Sport Mode, the engine shifts at higher revs, so the turbo is more likely to be spinning faster even at light throttle. There is diesel smoke smell in the car on start up and a rattle from the exauste. Our Privacy Policy applies to your personal data. 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. Nov 12, 2022 · The ordinary turbo whistle is low-frequency noise more likely to be detected by youthful ears. One way you can tell your turbo is blown is by the sound it produces. 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. However, if it stays constant as you rev the engine, it will be something else. I am also new to the duramax, I have always owned a dodge. 000 now. As has been mentioned somewhere on this forum, a normal low whistle sound is present on most turbo diesels. 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). 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. The background noise associated with the ensuing flows is therefore completely normal. Turbo has always had a whistle which seems much reduced - the whistle was pronounced at low speed. On its way to the engine via the inter-cooler, the whine radiates into the surroundings as structure-borne noise. 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. Since the new install the sound is gone. 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. 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. Given the moderate throttle that I hear in the video, id wager to say your engine is still in vacuum as well. In fact it usually comes on before the turbo's are spooling (according to the MFD boost gauge). 8t GLS, 5 speed and its making the whistle noise when I am driving from very low rpms (~1000). It only happen when I am in gear. i had turbo replaced inc exhaust system. This noise only occurs on vacuum and not on boost. 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. Getting ready for a gallon of lead free fuel and a box of matches i think. 0 has had a very high pitched whistle. Oct 13, 2010 · Basically if i'm in gear and Accelerate hard, You start to hear a whistling noise when the revs get high. Gets quieter as car warms. Create a TurboTax Online account to start your tax return with TurboTax #1 best-selling tax software. I've been told by friends it is the turbo, but i'm not sure. 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. Today I noticed something really strange. Many joke that it sounds like a little turbo kicking in! . 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. Once it is clogged, it is going to cause you problems. 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. 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. We would like to show you a description here but the site won’t allow us. Also, there could be a boost leak, so inspect the intake system. Under load I have a turbo whistle it sounds like a siren it's not a nice sound. Is this normal for the turbo engine? Can anyone please help me out, this is bugging the hell out of me. Malfunctioning Turbo 9. 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. So, I pulled the turbo off the truck yesterday and low and behold that thing was nasty. 9CDTI Vectra has developed a 'whistle' at low revs <2000rpm It is noticeably worse when cold. 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. Apr 25, 2025 · The distinctive sound that a turbocharger makes is something enthusiasts and everyday drivers alike recognize. I usually hear it as I'm slowing down and sometimes at idle. Haldex; I definitely notice with some whirr even bumbling along and trailing throttle from low speeds all the way to 45 or 50 mph. Oct 28, 2014 · Hello everyone! 6 weeks ago I bought my first car, a 2009 mk7 1. 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. 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. 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. I'm wondering if it's a turbo bearing failure or if it is a bearing failure in any of the accessory drive. 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. Your Diesel Engine Has A Dirty Fuel Filter A very common reason for low power complaints is the fuel filter. That can cause the same issues at low power if it is sticking intermittently but not enough for a code. Mostly heard from 1700rpm. 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. 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. I didn't know the turbo kicked in at such low rpm.