Lexus RX 2010-15 :: Metallic Vacuum Sound Seems To Come From Right Rear Of Car
Oct 5, 2014
I have an issue with my 2011 350 that is quite perplexing. I get an intermittent sound... best I can describe it is like a metallic vacuum sound that seems to come from the right rear of the car. There is no pattern to when it arises... comes and goes. I've been to the dealership with it 3 times and of course it did not occur. They must think I am hallucinating. I thought it might be an exhaust problem.
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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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So fairly recently, I've noticed a metallic-ish click like noise from my back rear driver side wheel. I hear it on occasion when sitting down in my car and the car tilts slightly. I can reproduce the sound when I take my hand and rock the car just a little bit. What that might be? Or if I should be concerned?
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I have an '09 Camry and for the last few months have been hearing a metal popping sound in the rear wheel area when I go over a bump or pothole unevenly or backout of a driveway at an angle to go onto the street. The sound does not occur when the wheels when they are even, only when the rear right wheel is "lower" than the left. It has not been in any accidents and there was no event that preceded this popping. I took it to the dealership but they were unable to replicate the issue but it happens no matter who drives the car (my husband or myself) and it is likely that the service guys didn't go over any bumps/curbs/potholes unevenly to hear the sound. They check the axles and said everything was good with the car but it is still popping and driving me nuts.
Current suggestions:
• Cracked bearing race. It could be another problem entirely having to do with the suspension mounts or axle mounts but let's hope these new mechanics will figure it out.
• Problem with a wheel bearing
• Struts and suspension components
• Bushings and parts
• Loose upper strut center nut or from loose upper strut mounting nuts
I took it back to a shop but they are thinking the sound is actually coming from the body near the roofing area in the right rear portion of the car. They seem to think based on the sound (metal popping only when that wheel is lower (like coming out of a driveway angled, or going over a pothole)) that it is the metal body but it would cost and arm and a leg to get in to even find out what it was. They assured me that it wasn't impacting the safety of the body and is just a funky sound. The sound is much louder in the car than outside which I think kind of supports their theory. Are they right and it won't impact the safety?
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Have a metallic/rattling sound under my car while idling. Don't hear it while driving. 2010 Mitsubishi Outlander
Here is link to sound file [URL] ....
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Where this sound is coming from? I notice it more when the engine hasn't been turned on in a few hours or so. It only happens at certain engine rpms, usually a bit higher than idle. It's a bit squeaky, per se, may need to turn up audio on the video below to hear it. May need to bring her in (just did a 30k service too..)
Possibly a belt of some sort? My AC is on at startup.
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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....
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On the December day my 2013 Prius Five model (hatchback with all the safety add ons, bigger wheels) turned 18 months old, i was on the way to have one of the freebie services. I heard a metallic rattle, seemingly coming from the back of the interior. It continues and I cannot find a source for it. I just read a thread about rattles in the 2011s. Not particularly comforting given what I spent on the car.
Is this something I could have the dealer chase under the warranty? (this is the first new car i ever bought in my 50 years of driving, so my familiarity with new car warranties is a little thin.)
My dealer has been pretty responsive -- swapping out an interior door panel as a freebie when the armrest portion separated from the lower portion and collapsed into the door.
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Have an '07 with 117k miles so well out of warranty. There is a very pronounced metallic rattle coming from the rear of the cabin when going over moderate sized bumps or listening to audio at moderate levels. Did some troubleshooting and have narrowed the noise down to somewhere above the rear center of the headliner. If I press slightly upwards on the headliner at this location, the noise stops.
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ABS, Traction, Brake (red & yellow) bulbs in.
ABS not working
Reduced brake efficiency
Heated brake disks
Regeneration charge indication doesn't go to left side much. But slightly charges battery.
ABS fuses ok in engine room
No vacuum sound in brake pedal
But faster brake actuator sound (every 5sec stop 2sec sound) on stopped ready mode in P. Engine not running.
Bit history;
I had brake light fuse blown. But not knowing was pressing brake pedal hard to start / goto ready mode as display said. So after replacing fuse, had the traction bulb on. After it was reset. Everything was fine. Apart from increased vacuum sound in brake pedal.
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This has going on for a few months now off and on. Whenever drive my F hard I notice this metallic click when i go to shift hard into second. The metallic click seems to be coming from the front of the car. I also get it if I'm around 3600rpm in and stomp on the pedal in first or second. It also happens when I shift into reverse. What it could be??
It also happens when i floor it and let off and do not change gears mainly in first and second. Sometimes i get a double click also.
At first I thought something could have gotten trapped in the engine bay and it only accelerated to a high enough speed to cause an audible noise but seeing as it been 3 or 4 months I don't think its the problem. It does not seem to effect spend and it does not make the click all the time.
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Was about three blocks from home when the front of the car started making a horrific metallic scraping sound as the front wheel turned. I mean LOUD. Did a quick look for something stuck in the wheels somewhere but nothing. It's not like a branch stuck in the wheel sound, but scraping a shovel on a steel beam kind of sound. Braking seems to change the makeup of the sound, but did not stop it. Parked it in the garage.
I pulled the left wheel off, looked and looked, and looked. Nothing. Fear and sadness setting in. Everything looked normal....except....a faint line on the rotor very near the inside edge. Got a mirror and looked some more, and there, wedged on the inside edge of the pad's metal part and the rotor, was a rock the size of a bb. At most. Got a small screwdriver and hammer and popped it out. Done. Sheesh.
Seriously it was so loud it was amazing. So store in file folder for future reference if needed.
The line can be felt barely with a fingernail and is half the width of a pencil lead, and goes under the innermost 1/8" of the pad. I'm thinking do I want the dealer to pull and turn it, or is it going to affect my braking at all. Pretty much gonna leave it be I think.
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Weird thing yesterday, noticed a rotational tick sound coming from the right rear wheel during slow backing up with the windows down. Sounded like debris stuck between the dust shield and the rotor. Had that tinny sound. Anyway, no dealer around in the town I was at. Closest is over two hours away and not in the direction of home which was four hours away.
I was visiting friends, and decided to jack the truck up and pull the wheel off and clear whatever debris was stuck in there. Pulled the wheel and didn't see anything. Rotated the hub and could still hear the noise. I pulled the caliper next and made sure nothing was in there. There wasn't. Ok, must be in behind the disc in the parking brake shoe area and making contact with the dust shield. I pulled the caliper mount and then the rotor. Still didn't see any debris or anything foreign. What I did see was a bunch of metal filings on the inner side of the brake shoes all around the backing plate. Also a fair amount of metal filings in the drum portion of the rotor.
Rotated the hub again, and noticed the noise coming from the retaining pin cap on the rear most shoe. It was rubbing against the backside of the hub. As the hub rotated the cap spun and made noise as the spring gave way and turned. This made sense for the noise and the metal filings. The cap was still in place and the pin was not being touched yet by the back of the hub. I reassembled it all and decided the further drive home was not going cause more harm than what was already done.
Dropped off at my local dealer this morning and explained the above. The technician confirmed it as well, and ordered the a new retaining pin. Some how it got out of tolerance and caused itself to be longer than it should have. The tolerance appeared close from the front side shoe that was not rubbing.
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I noticed that the driver side front wheel makes a metallic scraping noise while the car is turning right. It sounds like something scraping the rotor or shield behind the rotor ( a rotational/moving kind of scraping noise)
This only happens on a relatively sharp turn (wheel is turned 70~80% to the right). I don't suspect the power steering as there is no noise if the car is not moving even when wheel is turned to extremes. The scraping noise happens at any speed, as long as the car is moving. does not happen when car is turning left.
Note that I am 90% certain it is from the front... my ears may be playing a trick on me (kind of hard to listen precisely while driving). Where to start looking?
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I have a 2007 Kia Rio LS. I can't get it to do this ALL time time, but when I accelerate hard (passing, getting off the line quickly) I hear a metallic sort of coughing sound from my car. It seems to happen around 30-40 MPH, but not the same speed each time. I think I may have heard that sound once while it was idling.
I have done all the scheduled maintenance (I'm behind a bit for the 70,000) that my mechanic has recommended, and I keep up OK with my oil changes. We've skipped doing the timing belt thing, because it's a tear apart job- we're going to wait until 'other things' need doing and get it all in one fell swoop. This is my road trip car. I'm worried my transmission is slipping, or my timing belt is prepping to do something horrible while I'm on the road. Probably in the middle of nowhere.....
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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
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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.
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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.
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So on my new 2.0T Sonata I noticed a brief metallic rattle in the 2K-3K RPM range when you rev the throttle. I was very concerned.
The sales rep said it may be the heat shielding that is coming lose. He was concerned and said to bring it back when Service is open.
I just got back from the dealer: The service manager didn't know what it was but his tech said it was part of the turbo system, it's a 1/4 inch bar (parallel with the bumper) you can plainly see between the firewall and engine. He said what it did but I forgot to take notes.
I listened to another 2.0 Turbo Sonata on the lot and it has the exact same rattle when rev'd.
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I have been having a grinding/metallic sound when going up hills in 4th/5th gear. It sounds like if you threw metal into moving parts. I believe it's coming from my engine or transmission. When i was at the dealer last month for a campaign and ecm upgrade i mentioned this problem and they replaced the vcm motor assy, however the problem still exists. What could be causing this problem?
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So I decided to drive my car this morning after almost 2 weeks of it sitting in the garage, got to the parking structure, pushed the button to lower the windows so I can swipe my auto parking card and it rolled down fine. Then tried to close the window and heard this metallic clicking sound and the window wouldn't raise. Called the dealership and drove right to them to look into it. Now I am stuck with a Jetta until my car is fixed.
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