Sonata I45 (YF - 2011+) :: Loud Humming Sound Like Compressor Or Something Kicking On And Not Fully Engaging
Sep 20, 2011
I took my car in to get this checked out, but they say they can't hear it.
Sometimes when I turn my car on right after I turn it on, there's a loud humming sound like a compressor or something is kicking on and it's not fully engaging. And it only makes the sound for maybe 3-5 secs. Sometimes it won't happen when I turn the car on, but when I'm driving and I let off the gas and go to touch the brakes, it'll start.
The best I can describe it is a 'hum'...but it's loud, and I can feel it as if it's near the gas pedal right behind the firewall.
Dealer thought maybe it was the ABS switch testing itself..but they could never reproduce....I got in after they replaced my rims and checked it...and it did it 4 times when I started it, then turned it off. He came out to check, and it was almost as if you couldnt hear it outside of the car.
So, what the sound might be...I can't reproduce it anytime I'm there. Figures...... but I hear it almost daily. He put some foam tape on the firewall behind the gas lines saying the 'pulsing' from them might be doing it...but it did it again this morning.
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Have this issue during full stops or at slow speeds?
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I have a 2011 Sonata Limited 2.0t. I get a humming noise that starts out faint but gets very loud. This happens with the ac on and while coming to a stop or while stopped.
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After I took my Ford Focus 2011 to the dealership for a free oil change I noticed a subtle, low hum coming from the car when I hit speeds past 40mph. At first it sounded like the engine of a louder car driving near me so it took me a couple days to realize that it was actually my car making the noise. I intended to bring the car right back to the dealership to complain about this but I kept getting preoccupied with my studies for my summer courses. It's been roughly 3 weeks now and the low hum has gotten a lot louder now and can be heard over music.
The noise begins when I approach 40mph. The noise is probably at its loudest at speeds of 40mph-70mph. The noise is made even when I am not stepping on the accelerator or using the breaks. I haven't tried putting the car in neutral at those speeds. What might be causing that noise? Although I don't really trust the dealership since my car seems to manifest a new problem after each visit.
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I bought my 2011 Sonata with 27k miles on it. After a while (few months) I noticed on occasion when turning I would get a screeching/squeal noise from the front tires. Only happened during certain turns (U turns I noticed where higher chance of happening).
I rotated the tires (Front to the rear, Rear to the front), and then there was a loud humming noise. I got it checked with the dealer and they confirmed tires were cupping (uneven treadwear right?) . So now its been 10,000 miles and the noise is the same. I just got an alignment done and there has been not much of a change.
So, other than getting new tires, should I get the tires balanced? Or just rotate them once more so that the rear return to the front again? Will I have to get another alignment done?
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I just towed a friends' boat 1500 kms and noticed while walking around with the vehicle running, I could hear what sounded like a slight humming or hissing sound kicking on and off in the rear, almost like an auto-levelling setup. As far as I know the Tiguan's don't come with anything like that. I don't hear it when nothing is hooked up.
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I've noticed that when I have the fan on...A/C on or off...there is a humming noise coming from the front of the car at approximately 900RPM - 1100RPM... At first I thought it was the A/C compressor but there's a sound even without the A/C on... the sound is like a motor running, low pitch sound...it is very noticeable when you are driving at very low speeds like when you drive around a parking lot looking for a spot... it is also noticeable when you are coasting to a red light or stop sign and the RPM's hit about 1000... not sure if it's the fan making the noise because it doesn't have enough lubrication or something of a bigger problem...
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I have a 2003 ford ranger xlt 4.0L and here recently my ac compressor has been making a loud click noise engaging even though i am not using heat or AC, so when it engages the rpms drop and almost wants to stall and it does this in about 10-15 sec. intervals, but when I am driving it acts fine. What is going on here, I recently had a vacuum leak and i found it and fixed it, and now this issue just started.
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My 2011 2.0t has developed an odd ticking sound from the engine bay that is audible when idling. I haven't been able to pinpoint the source of the sound because once I drop the vehicle in Neutral it goes away although sometimes I do hear random ticks when I do this. The ticking sound is intermittent and sometimes I hear nothing.
In the video at 11 seconds the ticking starts. At 18 seconds it ends as I drop the car in neutral. What this sound could be? I'm going to try to hit the handbrake and check myself or have someone in the drivers seat while I go check but have yet to truly pinpoint the source of the noise.
[URL] ......
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I've noticed that when I've driven, park the car in the garage, turn off the engine, trans in park, a loud popping sound coming from the transmission (?) It sounds as if the car is clicking, popping into gear, although it's in Park. The garage is level and the car is not being moved in any kind of way. I sometimes sit in the car to finish a song or a phone call and I noticed this yesterday.
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I have a 2013 sonata gls and I bought it new, it only has 4,000 km on it. I don't know if this has always happened and I am just noticing now or just all of a sudden occurred but when I was stopped at a red light today and I had my defrost on, (heat fan on) it felt like my gas pedal there was a slight pulsation that I could feel. I also noticed earlier in the summer when the ac is on it seems like the car pulsates as well or the engine just sounds rougher. It seems to go away when the ac or heater fan is on 0. Is this an issue or serious problem? Why this is occurring?
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My 2011 malibu has approx. 20,000 miles, it makes a loud humming noise that is very annoying, can't even hear someone talking and must turn up the radio. It gets much worse when you get up to 55mph and above. I thought it might be the tires but they look good, but could it still be the tires?
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I have a 2014 Azera Limited and find it odd that the trunk doesn't have some kind of hydraulic system and just swings open so loosely, especially for a luxury car. Either way, my trunk makes a a creaking sound when fully opened and then again when I start to pull down from the fully opened position. Just wondering if this is normal. It just sounds cheap and is kind of annoying.
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Our car is a 2003 2.2L 4 Door. 132,000 miles.
About 3 days ago it started doing this thing where once we hit somewhere between 30-40 mph, it started making a low pitch humming sound. At 40 MPH+ it is very loud. To me it sounds like an airplane, I don't know how else to explain it. There is no shaking, though sometimes I can almost feel the vibration from the humming at my feet. My husband says that the higher the RPM's, the louder and slightly higher pitched the sound is. If we go below 30 MPH it stops.
We were a little late on our oil change and I assumed that was it, but got it changed today and it's still doing it. Other than that, about 2 and a half weeks ago, our rear driver side tire went flat. My husband was in the middle of no where on the way home from work so he used Slime and that fixed it (never went to get it repaired because we didn't have the time and it didn't go flat again).
Could it be that the tires are not balanced correctly because of that, and it is causing the humming?
Also, this may be completely unrelated but: The only other problem we have had/still have with the car is that about 2 years ago we drove from Texas to Nevada, and at one of our stops the coolant dumped out (did not overheat/no other issues). Took it to 2 different shops and they couldn't find anything wrong with it. Drove fine until 6 months ago driving from Nevada to New Mexico, it did it again, but this time it also overheated. The mechanic said it was the water pump. Replacing the water pump (which is expensive!) did not fix it, so without consulting us they also changed the thermostat. Charged us for both, told us it was fixed, and about 2 month ago it did it again, but did not overheat/no other issues again. Hasn't done it since...seems it only happens on long drives. Anyway, I don't think it's related, but I thought I'd mention it.
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I am hearing this buzzing sound in my trunk its really loud for ex: those annoying sounds people played as kids that people over "18" cant hear...back to the point its by my rear left tail light inside that area where all the wiring is also kinda hear it where the spare tire is all my lights work I unplugged the light and it still made the sound! It only does it when the car is running. Car is stock aside that it has no radio and the cd changer in the area that noise is coming from idk if its because a few wires that connect to the cd changer or what ever it is are unplugged but its coming from that area of the car its really high pitch and annoying.
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This is a question about a Subaru Outback, but probably pertains to many other cars as well. I have a 2006 Subaru Outback with 112K miles. I bought new tires for it in May 2012, and in September 2013 I started to notice a low humming/buzzing sound while driving. I looked online and came up with 2 options - either the wheel bearings or the tires. Because the sound changed pitch depending on the road surface, I thought it must be the tires. I took it in for an oil change and had the mechanics check the bearings. They said the bearings were fine, but the tires were cupping and feathering badly because I hadn't rotated them, and that was the source of the noise.
I had them rotate the tires and do an alignment and went on my way. The sound slowly got worse - it peaks at ~65 MPH and then changes pitch above 70 MPH and is not so bothersome - and I started to lose gas mileage ( 4-5 MPG). On Dec. 30, 2013 I took it in for the next oil change and bought brand new tires - Bridgestone Turanza Serenity designed for quietness - and had them do an alignment, and drove away only to find that the noise is still there and I still have lousy gas mileage.
My next thoughts were the transmission or the catalytic converter, but since the noise doesn't change when I take my foot off the gas or put it in neutral I don't think it is either one of those. The alignment showed that the Caster on both front tires is off, but since both tires are off by roughly equal amounts I was told that this is not something to worry about. I do occasionally notice some vibration while driving or while idling, but it is intermittent and I don't think it has anything to do with the noise.
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I have had this happen the last couple times I use my car in the cold. It has been around 25-30 F and when I pull out of my driveway the first time/maybe second time I touch the brakes it forcefully stops and feels as though only the front brakes are engaging. As I drive the car that trip it has yet to happen and the brakes preform normally. I am not used to disk brakes and I am thinking it is maybe that? The only other thing I could think of is that the brakes need to warm up a bit and pressing them still cold illicit that jerked response. I have read through a number of threads on brakes and I cannot seem to find this happening.
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When I am in reverse sometimes the left rear makes a loud humming sound like the brakes are rubbing or something. What do you think this is???
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I own a 2010 Toyota Corolla S that I purchased with about 30k miles, I have put about 65k on it since purchasing it. When applying the brakes in dry conditions I am receiving what feels like the abs engaging and a loud pulsing sound/creaking sound. The brakes will pulsate as if I am stopping on snow or ice but no traction control or abs lights will not illuminate. This has been happening for a good while(ever since I purchased the car). I have replaced the front rotors and pads and the problem purists.
The road conditions in this video are completely dry with an outside temperature in the high 70's.... YouTube .....
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I'm just over 45k miles, have a new mechatronics unit as of 39k, and I am beginning to see a new symptom for the first time since the replacement.... wondering if any of you have experienced this.
It's happened 2 or 3 times in the last couple weeks. The symptom suggests the clutch is not fully engaging. It is as if I had the clutch pedal in while in first gear, and I am feathering the clutch. This happens in "M" mode -- but I basically only drive in M so cannot say if it may happen in D or S.
Today, for example, I was at a red light on an incline. Light turns green, right foot off the brake and onto the throttle. Engine free spins up to nearly 4k and the car hold its position on the incline, without any movement or even a hint of movement. But there apparently was enough force going to the wheels to keep the car on the incline.
The engine does not rev as if it is in LC mode. It is free revving without any sound of it being under load.The clutches seem ok, this is not a clutch slippage problem. It's something occurring in the DSG's control.
I called my service advisor and he looked me up and said I have the latest and greatest MU, and my VIN does not qualify for the recent MU recall that is in the works. He said to just keep an eye on it for now (of course)
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I'm the second owner of a 2011 Hyundai Sonata SE 2.4L with about 79,000 miles on it. I've had it for about 6 months and I go to get into my car this morning, and my car wouldn't start.
It starts to start but then cuts out and does a humming noise. I don't know if that counts as "turning over" because its a push start, but there were no clicking noises like it was trying to catch, just the hum. It also started making this same humming noise when I turn the car "on" without turning on the engine.
Everything works, my stereo, ac, headlights, taillights. I even tried jumping it and that did not work. We checked the fuses and they all look ok too.
I also put the key in the manual key hole in the center console while doing all this just to make sure.
Although it looks like the car is on, after I try to start it, the lights on the dash go out and my meters all turn on just as if the car is on, but the engine will not start. I can even shift the gears from parked to drive, neutral, etc and power steering works.
Finally after about an hour of messing with it, I gave up and tried to shut the car power off, and it wouldn't turn off! I went back n forth between the two on modes for a good 5-7 minutes before it FINALLY turned completely off and I was able to lock up and leave it...
*I have also had issues before where one or two dome lights randomly turn on when i unlock the car (with them set to OFF at all times). Maybe this is a minor electrical issue that turned into a bigger problem from ignoring it?
**I DO have an aftermarket stereo and alarm installed FYI.
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