Belts - Chevrolet - Noises - Blazer :: Loud Slapping Sound When Cold
'91 Blazer, S10, 2wd, 300,000 mi ....when weather cold, and car cold, I hear a loud slapping sound that I thought was a fan belt, but checked and they are ok...when car warms up, or when weather warm, I don't hear the slapping..... sounds like belt against plastic,,,,???
View 7 RepliesGolf/GTI VI :: Loud Metallic Scraping Sound From Rear Brakes
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.
Golf/GTI VII :: Loud And Consistent Metallic Whining Sound When Engine Warmed Up
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.
Touareg :: Loud Metallic Rattling Sound Under Moderate To Heavy Engine Load When Cold
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....
Prius (Gen 2) :: Loud Chirping / Whining Sound Under Acceleration While Driving
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.
View 5 RepliesPrius (2004-09) :: Big Red Triangle Appears While Driving / Loud Sound From ICE
I got a rebuilt 2008 prius 2 days ago , today while I am driving , the big red Triangle appears , and on the MDF screen i think its a red temp mark , before the red Triangle appears , the ICE become like crazy loud sound from it, so i bring my mini VCI and i got the following info (i will post it as an image ) .
View 9 RepliesSonata I45 (YF - 2011+) :: Engine Damaged - Metallic Pop Sound While Driving
I own a 2011 Hyundai Sonata with ~40,000 miles (certified pre-owned). I heard a metallic pop sound while driving but did not see anything on the road or in the rear view mirror. Then I got on a highway and couple of minutes later there was no response from the engine (i could feel the car decelerating). Then the engine started responding again. A couple minutes later, again there was reduced response but this time I got a bunch of lights (oil pressure, abs and a few others). I pulled over and tuned off the car. by this time only the oil pressure light was on.
I checked the oil which was near empty. I walked to a nearby gas station and bought oil and filled 2 quarts. Then I noticed that all oil was draining right through in a steady stream.
I had the car towed to a nearby Hyundai dealer. The dealer diagnosis was that there is no drain plug which may be because the last place the oil was changed (around 2-3 months back) did not install the plug properly. He also said that the engine is ruined and will have to be replace and asked me to contact my insurance company.
The last oil change was also done at a Hyundai dealer (a different one than the one that provided diagnosis). I checked my driveway and there are some oil stains, I haven't driven the car much recently and have recently moved into this place so am not sure if these are new or old. What are my options. I don't have the the thousands required for a new engine.
Nissan - Altima :: 2006 - Making Metallic Sound While Driving - Higher Oil Consumption?
I own a 2006 Nissan Altima with about 90500 miles on it. Recently i took it in for service and to fix a problem where the car was making this metallic sound while driving. The mechanic discovered that the sound was caused by a low engine oil level causing the timing belt tension to lose pressure and make the sound.
The mechanic also found a Nissan Service Recall/Campaign (NTB06-082) related to Engine Oil Consumption where the following occurs: "extremely low engine oil level resulting from higher than normal engine oil consumption due to a manufacturing problem in some engines". NTB06-082 states that the first thing the dealer should do if the recall applies is reprogrammed the ECU followed by doing an engine oil check.
What steps I should follow to get the Nissan Dealership to take a look at this particular issue? I imagine that it's going to be hard convincing them that the NTB06-082 may apply to my vehicle.
Honda - Accord :: 2003 - Rattling / Grinding Metallic Sound Coming Off Right Rear While Driving Slowly
Recently I started hearing a rattling/grinding metallic sound coming off the right rear while driving slowly. This sound is not reproduced when braking.At first it started while doing sharp right turns only, now its ever present while driving. I showed it to a mechanic he says rotors needs to be replaced. Is he right? 2003 Honda Accord V6....
View 7 RepliesPrius (Gen 3) :: Metallic Plinking Sound When Braking?
I got my first Prius last week but something started happening I noticed a few days ago, that sometimes (between 30 - 40%) of the time when I brake there is a metallic plinking sound, and directly under where I let my non - driving foot chill out (which is basically the center of the drivers site floorboard), my foot can feel the plink as well
View 10 RepliesPrius (Gen 3) :: Metallic Clicking Sound - With The Windows Down
2012 Prius 3 with solar roof. Most of the time when I go over little divest in the road; just large enough to barely feel, I hear a metallic clicking sound from the front passenger side of the vehicle. It is only audible with the windows down. It only happens if I am going faster than around 10mph. Sometimes I hear a similar sound from the drivers side, but not as much as the passenger side. I do not usually hear it when hitting larger bumps that work the shocks a bit harder.
It really sounds like some loose bits of metal contacting each other. I do not see anything obvious with a quick visual inspection, but I have not raised the vehicle to really get a good look down there.
Passat (B5) :: Light Slapping Noise From Under The Hood When Driving
I've been hearing this light "slapping" noise coming from under the hood. I think I localized it to the air filter area, but not exactly. The engine and everything seem to be functioning perfectly minus this noise when driving. Could it be the plastic covers?
View 6 RepliesAccent LC (2000-05) :: Weird Slapping Sound Coming
My 2005 Accent started making this weird slapping sounds last night. I hesitate to call it knocking b/c it's not that loud. It sounds almost like if you put a some cards in the spokes of a bicycle (weird description, I know). But basically the sound speeds up as I accelerate and vice versa. It started last night as I was pulling up to the house. When I opened up the hood, it sounded like the sound was coming from the top/top back of the engine. I recently had all belts and radiator (small leak) replaced about 2k miles ago. What it may be? Car only has 67k and I drive 95% on the highway at about 70mph. I drove my truck to work this morning so I don't make the problem worse until I know what it is.
View 1 RepliesFord - Explorer :: 2004 - Won't Turn Over - Slapping Sound From Under?
I have a 04 explorer with 100k miles. I went out to start it the other day and it wouldn't turn over. It would start to crank but acted like something was in a bind and wouldn't let it turn. Finally after trying and trying it turned over one time and sounded like it had a bad exhaust leak under the car. i had the starter and battery tested and they are fine.
Finally I got the car started by jumping it off and now I'm getting a slapping sound from under the car. The oil was just changed and the level is fine but now has a very black tint to it but doesn't appear to have water/fuel in it. The explorer now starts and idles fine but does have a very noticeable noise. There were no issues leading up to this problem, it was driven parked and then the next morning wouldn't start.
Prius (2004-09) :: Metallic Rattle Sound During Acceleration
I'm back with another question! My 2006 Prius now has 60,XXX miles and the other day while driving with the windows down, I was climbing a hill to my house and when the engine is at a certain RPM, there is a metallic sound that comes from under the car, but more in the front. You can't even hear it when the windows are up barley, but more when they are down, you can hear it, especially when you're beside a wall or guard rail and the sound can reverberate back.
View 2 RepliesIS F (2008-2014) :: Slapping Sound From Rear Left Tire
I was just driving home and noticed and sort of slapping sound from my rear left tire - I pulled over at a gas station to take a look at it and found no issues with the tire itself (bubbles/flat spots) or any irregular wear, my next best guess is that the wheel bearing has gone bad, is there a way i can test this for the rear wheels without putting it on a lift?
View 13 RepliesGolf IV / Jetta IV :: 2003 1.8T Engine Knocking / Slapping Sound
I've got a 2003 Jetta with the 20v 1.8t, today I was driving along and when I slowed down coming into town, my car started making this sound that I can only describe as sounding like a tractor. It sounds like something is rattling under the valve cover.
Here's a video with the sound : [URL] ....
Santa Fe (CM - 2007-12) :: Sound Like A Chain Slapping Around In The Engine Hard
I just bought this 2008 santa fe with a 3.3 V-6. It has 200kms on it. Here is the problem- I start the engine, and for the 1st second of running there is NO noise,.....but a second later it sounds like a chain slapping around in the engine HARD. it lasts for about 2 seconds and then the motor is quiet. It seems like the longer the car sits,..the worse it gets. If your only letting it sit for 20 minutes or so, you wont hear it.
View 5 RepliesPrius V :: Engine Ping (rattling Metallic Sound) Under Load
When accelerating up a steep grade the engine will ping (rattling metallic sound) when reaching a certain RPM, but stop pinging as I continue to push the accelerator down and increase the RPM. Should I be concerned? Could it be something else, loose exhaust heat shield or something? Or is this normal behavior for a gasoline engine? My old Honda Fit never had engine ping/knock that i can recall in its 200,000km of service running the same 87 octane gas.
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