Golf/GTI VI :: Fluttering Noise At Boost Between 3500 And 5000 RPM?
Jul 23, 2011
I have a 2011 GTI, with an apr chip and apr intake stage 1. Car is brand new 4000 miles
When hitting boost in 3rd-6th gear i hear a fluttering sound between 3500rpm and 5000rpm after 5000rpm the sound either dissipates or is drowned out by the motor.
I've done a lot of research around this sound and i havent been able to find a certain answer, it could be compression surge (i wouldn't see why), a leaky DV ( also cant see why because the 2011 has the new revision D piston actuated DV), A fluttering wastegate.
Sage 1 apr chip and stage 1 apr intake...
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Ok here is my question. I've noticed the power on my car has felt inconsistant for the last little while. I finally got around to logging the car and my boost peaks at mid 20's just over 3000 RPM and then drops fast to between 13-15 psi before I even get to 5000 RPM.
Under full boost I hear a low fluttering sound like the diverter valve opening and closing when this is happening. I also don't get the typical diverter valve sound when shifting when the car is doing this.
I took my diverter valve out and inspected it. I can pushing the piston up very easily with almost no resistance, is that normal? I would think that it should be hard to push the piston up if not wouldn't boost pressure be able to overcome the piston and leak past?
My mods are. HPA tune, HPA catted down pipe, and VWR intake.
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So pre waterfest my car was accelerating as expected. It'll pull fine until about 3250-3500rpm then it'll get a little kick until about 6k. Now, I can feel the boost at around 3500rpm but it's very mild. It only holds boost until around 4500rpm.
I don't have a boost gauge installed but I have an app that will connect to a Bluetooth OBD dongle I have. I've used it in the past and it tells me how much boost I'm making. It shows that I am peaking around 24-27 lbs of boost. But it just drops shortly after without me letting off the throttle at all.
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car is losing boost as soon as it goes above the 3500 range.
it will reach peak boost at WOT but begin to tamper off as it goes higher in the range and will reach as low as 5lbs towards 5-6k
i have an apr stage 2+ tune and my peak boost is usually 17-19 lbs.
check all hoses and everything checks out fine.
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When I purchased my 2010 mk6 about 3 weeks ago there was a noise in the dash board when ever the RPM's pasted 5,000 It sounds like a rattling noise from the intake or something. So i put a stage 2 APR intake, Magnaflow cat back exhaust and a AWE tune. After all that work the rattling noise is still there and is driving me crazy. I love the car but there's gotta be a way to get rid off the noise ...
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New to the board- sold my b6 passat for '12 GTI manual.
Its been a few years since i've owned a stick so I'm not sure if this noise is normal or just because the car as 100 miles on it OR just because I'm a freak when it comes to hearing every little noise.
But when i'm say in 5th or 6th gear on the highway and give it some gas I hears some noise like a fluttering vibration noise for a second or two and then it goes away? It sounds like its coming from right underneath me. Its not a huge deal but on my first brand new car, I'd rather just have someone tell me its normal or if it needs to be fixed or a bolt tightened or something.
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So I am new to the VW TDI, and I am hearing some noises I am not used to...
First noise, when the transmission is in neutral, clutch pedal not depressed, I hear a noise from the clutch (makes the TDI sound louder than it really is), if I put the car in gear, the noise goes away (even if I put it in neutral and keep the pedal pressed in), sounds like the pressure plate or clutch could be making that noise, is this normal or not ?
Second noise, when accelerating (especially accelerating hard) above 3500 rpm or so the engine makes a weird muted sound, I can't really describe it, maybe like bubbles of air in water would do, but muted ... it's a weird sound !
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Recently had an aftermarket turbo back exhaust system installed. After driving for a short while, I noticed that between 2500 and 3500 RPMs the noise was very loud. Once I hit the highway (in which the engine almost exclusively hangs around those numbers), it was almost unbearable to sit in the car while having that constant droning sound. I have had and been in cars with aftermarket exhaust systems before and never heard anything quite like this. It is pretty tame below 2500 and once you hit 4000, it sounds quite nice and that horrible drone goes away. I really trust the shop that did the work, so I doubt it was faulty install. Could it be a faulty design or maybe just the one that I received?
This exhaust is from a reputable maker and they designed this system specifically for the Golf R. I did have some other mods done at the same time (Coilovers, Engine Mount Insert, Intake and a Tune). I know the insert may cause a little bit of vibration and hence a little bit of extra noise, but nothing like this. While driving on the highway at 3000 RPMs, I cannot even clearly see the cars behind me through the rear windshield as there is so much vibration from all the noise.
Forgot to mention, this TBE is resonated with a CAT, so even more reason for concern. Would expect it to be quiet by comparison to a CAT-less non-resonated system
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99 volkswagen passat 1.8T ... The turbo have like a fluttering noise when i let off, I just installed a APR chip. Is it a dieverter valve or something.
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so on the way home from the golf course, I caught a little bit of fluttering in 3rd and 4th gear pulls. Time to upgrade the dv I guess. I was under the impression that we wouldn't have to do this though.
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I'm hoping it's nothing, maybe bad gas.
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I just bought a forge 007 and an apr chip. When i installed the DV i ran it in reverse and am getting a fluttering noise.... i'm running the yellow spring which should be right for a chipped car.
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Whenever I have my fan on speed 1 or 2, it makes this fluttering noise that comes from the passenger floor cabinet. I stuck my head under there while it was on and was able to confirm that it's coming from the fan that's located under the glove box.
I'm thinking about taking the fan out to dissemble it and try to figure out what's making the noise. It almost sounds like there's a leaf or something stuck inside rubbing against the fan.
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I just recently notice a whistling noise when I hit boost. I'm not sure but it sounds like it is coming from my gauge. I'm not losing boost pressure. I do have a glow shift gauge. The most recent install was the TIP which I clamped on to the turbo but I'm wondering if it isn't on tight enough.
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I think my stock DV is going bad, my car makes a weird noise under boost?
1. Only happens when first starting the car after it has been sitting for an hour or a few. (not overnight)
2. Does NOT happen when first start in morning.
3. Goes away after like 5 minutes every time and the normal WHIIISHH sound comes back like it should when I step on the gas.
4. It does not make the sound at idle.
This recording I made was of my car being revved up after it sat for one hour.
[URL] ...
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My Vibe (manual trans) started making a weird chattering/fluttering noise in 4th gear a couple of weeks ago, so I took it in (mileage around 160k). The noise was similar to the one it was making two years ago when the transmission tore itself to shreds and the shop did a full rebuild, so I was somewhat concerned about taking it in before I was stranded on the road somewhere. It took several days to find the problem, but apparently a balance shaft moved and chipped some teeth, and that somehow affected the trans in 3rd and 4th gears.
Now when they were explaining this I was trying to calm a screaming baby, so I wasn't really paying attention to the explanation, but I wanted to verify that this could happen and that I really do need yet another rebuild, this time with a new balance shaft. He's cutting me a break (this rebuild is significantly cheaper than the last one).
All this said, I really do trust my mechanic, but am really considering letting go of this curse of a car. I've now paid for it's value 1.5 times over the last two years. While the mechanic assures me this trans is bulletproof, two incidents in as many years makes me think otherwise. A quick google search doesn't allay my fears either...
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I purchased a P3Cars gauge and an analog boost sensor with an ECS boost tap. I seem to be getting some fluttering noise at higher boost (greater than about 15 psi).
It was my understanding that digital boost gauges didn't buzz, so I thought I high have some movement of the boost sensor, hose, or the interface box for the gauge. I've got these pretty well padded and fixed with zip ties.
Do I need to get an inline restrictor (cotton swab, filter or otherwise) to eliminate this fluttering noise?
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I'm having a strange, very high-pitched, noise that seems to be coming from my turbo or (possibly) somewhere else in the engine bay. It sounds very screechy, and it may be paranoia, but I believe it also may have a slight metallic sound to it.
It all started yesterday after changing the thermostat housing for the third time in 2 days (autozone sold me a faulty, warped, housing that leaked after install). During this repair the engine never overheated (it did however leak fluid and go a little low) and the main point for replacement was a stuck thermostat. After finally getting it fixed I took it for a test drive and noticed the horrid noise after hitting a good amount of boost (no gauge installed). The noise occurs when boosting and doesn't happen when spooling in the 3k-4k range. I had no hint of the noise before this.
There doesn't seem to be any drop in performance and it still pulls hard. Hoping this to be a loose exhaust connection or boost leak. May be spooling sound escaping.
Mods:
- short ram air intake with an aem filter
- 3" turbo-back exhausted
- revo chipped
- 4 bar fpr
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Got my car back from dealer for 5000 miles service. On the way home I heard there was some weird noise under the hood. It sounds like some very thick heavy motor oil dripping on the pan intermittently.
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230 miles and I have one question. I'm braking in the R slowly and haven't really hit the RPM's in a crazy way but when I go from say 3000-5000 RPM I hear a vibration along with the nice sounding exhaust. It happens in each gear if i take it that high.
I'm thinking it's maybe a heat shield or something? Have any of you experienced this or maybe have heard of this symptom.
Other than this issue, the car is the bomb! My R is not numbered? Isn't the number on the steering wheel?
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With only 356k miles on my 06, I'm now getting a sudden drop/loss of power at high RPM. At about 80mph on flat land (or about 60mph up hill) if I try to accelerate the power drops off as a fluttering sound starts (not engine knock). The fluttering sounds like 6 inches of celophane tape flapping in the wind at highway speeds.
I just cleaned my K&N air filter, but the plugs, injectors and fuel pump are original. I ran 1 can of injector cleaner (SeaFoam from O'Reilly) with little to no improvement. I'm guessing it's the fuel pump/pressure, since it runs fine at lower RPM, with no loss of mpg or power (still 50mpg average). I know the fuel pump is in the tank ($400 in parts alone). I'll see if I can measure the rail pressure with Torque and my CANBUS scanner.
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