Golf/GTI VII :: Loud And Consistent Metallic Whining Sound When Engine Warmed Up
Oct 28, 2014
So I started getting this metallic/harmonic whining sound from my GTI's engine a few weeks ago. It was barely noticeable then, but has now gotten louder and more consistent. The sound occurs once the engine has warmed up and can be reproduced by holding the revs constant anywhere above 2k. The sound does not change in pitch with engine speed. It doesn't matter if the car is parked or moving.
I've attached a video... The sound can heard starting at 00:23 and becomes constant after a few seconds. Its hard to hear at first, but if you listen carefully its definitely there.
I have an appointment with the dealer tomorrow and will update with their findings. In the meantime, any clue as to what this could be? I can't really pinpoint where its coming from, seems loudest near where the oil filter is? By the way I'm 100% stock.
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I had a super loud metallic scraping and clanking noise when I was backing out of my driveway the other night. It was so loud I though my exhaust was dragging or something.
It turned out to be a rock trapped between the heat shield and rear brake disk. I pressed the heat shield away from the disk a bit and the rock fell out. It's kind of crazy that such a little rock caused such a loud sound.
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Problem description: A loud metallic rattling sound from under the car under moderate to heavy engine load, only when engine/exhaust is/are cold. It is noticeable from within the cabin with the windows rolled up and the sunroof closed. Crack a window or the sunroof and it's pretty loud. The first time I heard I, I thought "this is not good".
This is not an octane ping or valve train noise. It sounds like a coffee can with marbles being shaken in concert which what might be the rapping of a V8 engine's exhaust. I had a Sunbeam Tiger that rapped in the upper rpm ranges and this reminded me of that but instead of rapping, it shakes a can with marbles.
There has been much discussion and speculation as to what causes this. It does seem to occur only with late - 04 and up V8 Touaregs with the "sport" exhaust that replaced the "std"(?) exhaust used on the majority of the 04s.
Observation: I looked very closely at the heat shields, looking for ways they could rattle. On the passenger side (LHD), the heat shield has three main sections:
- Front: around/near the secondary cat (tightly secured)
- Rear: around/near the rear differential (tightly secured)
- Middle: between the two mentioned above (loosely secured)
The three sections overlap a little where they meet. It was very easy to tap on the middle shield and make a loud metallic sound. I put my finger between the two shields (where they meet) to isolate the two metal pieces and tapped again, and the noise was gone.
Theory: The harmonic resonance of the exhaust under load vibrates the middle heat shield and it rattles against the front and/or rear shields. As the shields heat up, they flex enough to provide clearance between each other and the noise goes away. This may be unique to the "sport" exhaust if (and I am only speculating) the heat shields were changed (in design or fitment) when they changed the exhaust.
Experiment: I tried a very simple experiment. I slightly bent the edges of the middle shield (~1/2 inch) where it was coming in contact with the front and rear shields. The allowed me to tap rather hard on any of the shields without them rattling against each other.
Result: I make the tweaks to the shields Sunday night. When I drove to work this morning, I put the transmission in sport mode and ran WOT until it shifted. Normally, I would have heard the sound (very loudly) but it was gone. No metallic sound. Not completely convinced, I repeated the experiment on the way home and, again, the sound was gone.
Summary: It was cool out when I was going to, and from, work (64F) and this would normally be the perfect set up for making the sound. I think that tweaking the heat shield has solved the noise on my Touareg. I am tempted to go back under there and pop-rivet a little brace between the shields so that they cannot rattle against each other again. On the other hand, I may just leave it be and do the pop-rivets if the noise comes back.
Anyway, I was excited to find a potential solution for my Touareg and wanted to share it will you all. I will post back after a while and report how it goes in the long term. Lastly, I really liked being able to put the air suspension in xtra-offroad and get under the car (easily) without using a jack....
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My Odyssey has 110,000 miles but since about 50,000 miles (I can't exactly remember) it makes a loud wining sound from the engine when I slow down, gets louder when I turn a corner, like going into a parking spot. The problem is it comes and goes and I can't seem to pin point what kind of weather or other conditions make it happen.
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@75000 miles my first check engine light. Here are my symptoms......
~After i shut the car off the fan keeps on blowing at a very high rate as if the car is over heating, its currently 45-50 degrees.
~On cold morning when i start the car up and turn the steering wheel I hear a very loud whining sound, but after driving for about 20 min and the car has warmed up the sound goes away.
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So as i pull into the laser wash today i realize that my coolant is running extremely hot. So when i pop the hood and find that there is no coolant and the globe. So I release the cap until it started steaming and bubbling up. With all the excitement i got a tad emotional and punched a hole in a wall inside the car wash (painful) Upon a second look i realized that a problem i have had before had been keeping my radiator fan from running
I am also dealing with a problem involving the climate control draining power. If the AC or heat is on the car's idle bounces around and causes a loud whining sound. Also, the radiator fan does not seem to want to stay on for more than a second. I have been discussing this problem on a different thread
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I have a 2005 STX with the 4.6L, 4WD, AT.
The engine has started to make a loud whining sound recently. I replaced the belt and tensioner since it was original and had 93,000 miles on it. The sound is still there.
The sound increases with rpm but doesn't change when you turn the steering wheel.
The engine starts and runs smoothly with plenty of power.
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New to the prius world! I recently purchased a 06 prius with 185k. Gas engine needed to be replaced so I recently replaced it. Had code of engine failed to start. Now got replacement engine in and has p0300 and p0303 and p0304. Weird thing is new plugs. Swapped coils and injectors with same results. To me it sounds like a racket in the transmission. The noise is not consistent at all. Very loud and odd. Also inside the car when I put it in drive or neutral a warning light comes up and says shift to park batteries wont charge while in neutral.
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I've been hearing a loud whining type or sucking noise out of my engine bay every time i give gas its louder then my exhaust almost when coming to complete stock .. Its been happening since i bought the car at 50k now it has 79k .. should i be concern or how can i fix it.
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Well, Car is in the shop to get the trans looked at. Loud whining noise in 1, 2, 3. corresponds with engine speed, not road speed. I think input shaft bearings are shot. Going to get a new clutch and throwout bearing while it's out. 116K miles.
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Our 2010 Prius makes a loud metallic slapping sound whenever we drive over the lane marking reflectors on the roads.
Audio recording included....
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My wifes 2006 mountaineer V8 overheats. She says itll only do it sometimes after the truck has been warmed up. She will come top a stop and the temp will spike and she will get a warning light then it will go back to normal and be fine. When the temp spikes she hears a loud whooshing or whirling sound coming from the motor which I supposed is the fan? Could it be a bad thermostat or waterpump?
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I've had this car for awhile now and it's always had this weird whining sound coming from the engine.I had the transmission serviced thinking maybe that was the sound and it wasn't. I've taken off the serpentine belt and spun all the pulleys. I can't figure it out, I'm thinking maybe timing chain but I'm not sure.
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This might just be car engine in general regardless of make or model, but upon a cold start, my GTI engine whines or buzzes for approximately 1 second before it stops. I had a 2009 Toyota Corolla that also did this, but I had it fixed with a TSB due to the oil not reaching the VVT-I gears or something in time. It's not the same noise in my GTI, but I was wondering about same sound almost every time upon a cold start?
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Over the past couple of weeks my truck has developed a pretty consistent metallic buzz on light/moderate acceleration. At first I thought it was a heat shield rattling, but I've been under it a dozen times and can't find anything loose to make the metallic buzz that I'm hearing... I can pound on several places in the exhaust system with my palm and it seems solid/connected everywhere. V10 truck??
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Ever since I bought my 06 LX in November last year, it's either the transmission or possibly the engine that makes a whining sound. It's a very noticeable sound, every passenger I have mentions the sound. It starts as soon as I step on the gas.
I'm finally getting annoyed with the sound, and I'm wondering what I could possibly do. It's just out of warranty, 71000. I'll try to have a video recording of the sound by tomorrow.
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My 2004 Outback Wagon started making a loud whining sound the other day - but only in reverse. I've been told that it's the brakes.
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I've noticed that I don't get a consistent engine roar from my sound generator when I throttle hardly. I get more of a roar when the engine is cold and I floor it. Any other time I accelerate hard it doesn't sound like my sound generator is working.
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2000 Crown Victoria, 207K miles, 111K on current engine
My car has been an absolute champ since I took ownership of her at 133K miles, and to this day runs trouble-free. However, it's just started making a noise that's got my scratching my head. I can only describe it as a "puff" sound. It's consistent with engine speed (higher RPM = faster puffs), and seems to get louder the more open the throttle is. If you let off the gas and coast, the noise goes away.
What's kinda confusing me is that the noise does not occur at all while the car is not in gear. If you park and rev the engine, the noise doesn't happen at all. All fluid levels and conditions are good, and there's been no loss of power or other issues from the engine or transmission.
My only guess is perhaps I have a teeny-tiny pinhole leak in my exhaust somewhere. The sound seems to be coming from somewhere very close to the engine, but since it doesn't happen when parked I can't pop the hood and look around for where exactly the sound might be coming from.
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I have a 2008 Prius with 111,000 miles on it and lately, I hear a loud chirping, whining sound that is louder under acceleration and seems to vary only according to acceleration or deceleration. Acceleration makes a louder sound. The noise does not occur when vehicle is cold and first driven. It's only after it's driven for awhile and things are warmed up but then again, it doesn't always do it even though it's warmed up. Not sure I could reproduce the sound if I brought it to a dealer for service. When the noise does start up, it's very apparent and loud and then, after awhile, it goes away temporarily only to start up again.
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So was driving home from work today and was fairly close to home waiting at a light. Light turns green and I start to move forward (going up a moderate hill). I shift into 2nd and all of the sudden I hear a loud, metallic "rat-tat-tat" coming from somewhere around the passenger side front area of the car. Almost like a snare drum but more metallic sounding. Then this is followed by what sounds like a second or two of metal-on-metal type grinding noise. Don't feel much of anything, maybe a slight shudder. Then it seemed fine.
I was only about two blocks from home and it was driving okay so I continued on home. No warning indicators of any kind on the dash. When I got home I looked in the engine compartment and under the car for any signs of something obvious being broken. Nothing. I haven't driven the car since but I'm worried about what might transpire in the morning. It's even possible that it was one of the cars next to me and I was hearing the sound from their coming nightmare echoing off of the buildings to my right. But, it seemed like it was coming from my car, and that metallic popping sound has me very nervous. But as I said I drove it a few blocks after this and it seemed fine.
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