Sonata I45 (YF - 2011+) :: Humming Noise Starts Out Faint But Gets Very Loud

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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Sonata I45 (YF - 2011+) :: While Driving Heard A Rattling Noise - Engine Cuts Off

Tonight while driving I heard a rattling noise under the engine, come to a stop and the engine cuts off. I pop the hood, get a jump and nothing. So I check the oil and it is dry... I changed it 4 months ago myself, it is a mystery how it leaked. No light came on, no oil leaks anywhere..

Is there any hope in having the engine turn over again? If so how should I go about trying to turn it? Engine only has 61000 miles on it.

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Sonata I45 (YF - 2011+) :: Loud Humming Noise At Idle When A/C Is On

Have this issue during full stops or at slow speeds?

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Sonata I45 (YF - 2011+) :: Low Pitch Humming Noise From Front End At Low Speeds

Layely with my 2011 SE I've been getting a low pitch humming noise while traveling at low speeds, mainly going into a stop sign or light and searching for a parking spot. It happens with the AC off as well, not so much a vibration just a low pitch hum, also does it with foot off brake too as I just let it coast. Kind of annoying and want to make sure its good.

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Sonata I45 (YF - 2011+) :: 2013 - Rear Humming Or Roaring Noise

My 2013 Sonata GLS has a noise that is in the rear of the vehicle going down the road. I rotated tires from back to front and noise seemed to move to front. I moved them back to rear so noise would be behind me. This told me the noise must be the tires or wheels. The tires are a long way from being worn out so I keep running them. I have the stock alloy wheels but previous owner put 225/40R18 tires on car. Tires size on door jam label says tire size on this GLS is supposed to be 225/45R18.

Could it be the wheels and not the tires? Another possibility could be factory lug nuts on back wheels. I read in my street rod magazine that lug taper length must be shorter than the taper length on wheel lug holes. Lugs cannot be so long that lugs hit the wheel backplate leaving the wheels slightly loose and not centered leaving a slight tire wobble when driving. The article says the lug taper much be shorter than the taper in the wheels in order to snug the nuts. I did not switch the lugs when rotating tires to front. If this is the problem rather than tires or wheels, Hyundai had a lug supplier problem.

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Sonata I45 (YF - 2011+) :: 2013 - Humming Noise From Engine When Accelerate Or Car Decelerates

New Sonata GL owner. Just picked it up last week and I love the car. Great drive, great features. Only thing is I am noticing that there's a humming noise from the engine whenever I accelerate and when the car decelerates. It's not really noticeable during the day when the streets are busy and I'm listening to the radio etc., but at night when I'm driving on quiet streets its quite audible and it almost sounds like Diesel engine.

I read a few threads on this and people have attributed it to the direct fuel injection - is this humming sound normal? Do all sonatas sound like this? Or should I go back to the dealership and get it checked out?

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Sonata I45 (YF - 2011+) :: Squeal Noise From Front Tires / Loud Humming When Rotated

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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Sonata I45 (YF - 2011+) :: 2012 SE 2.4 - Cruise Control Cuts Off

Mine has done it a few times now. It seems to do it going up a very long gradual to steeper incline, such as climbing some mountains, when set to 60 MPH. It'll start dropping down until it gets to about 47 +/- MPH, then the cruise just kicks off. No downshifting in sight...

There's a stretch of route 219 through PA heading north towards NY that I encounter about once a month. Yesterday was the 2nd time I've had my Sonata on this trip, and it did it again. It actually did it twice last month on this trip.

The dealer reset the transmission computer due to very cold weather "slipping" from 1-2 shift after the first trip. It appears that didn't take care of this issue, though I didn't mention it to the dealer at the time (it slipped my mind).

I'm reluctant to take it to the dealer, since odds are they won't be able to duplicate the issue. We don't have any roads around here quite like the one this happens on.

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Sonata I45 (YF - 2011+) :: Humming Sound At Front End When Fan Is On

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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Ford F-150 (2004-2008) :: Odd Humming Noise Starts From 25 - 30 Mph?

Ok, been trying to track down an odd humming noise on my 08 f150 CC 4x4, 4.6l. kind of sounds like a hub bearing going. starts around 25-30mph and never quites down.

Turning left or right to load each side of the suspension doesn't change tone or intensity of the noise, different pavements doesn't change Tone or intensity. Hubs are tight, CVs are tight, 4x4 works as it should. Cant figure this sound out and it's quite loud.

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Sonata I45 (YF - 2011+) :: Loud Humming Sound Like Compressor Or Something Kicking On And Not Fully Engaging

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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Sonata I45 (YF - 2011+) :: Engine Starts To Fire Then Stops

It is not the brake switch. I can shift the transmission. Put key in ignition and turn to start. Engine starts to fire then stops and can hear starter turning while still holding key in start position. The car did start after many time and got home.

Tried to start again and no go. Warranty is done. I have read something on-line about cam position sensor? Last couple months had strange idle at stop light that went away and this can be also a symptom of the cam sensor.

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Sonata I45 (YF - 2011+) :: Turbo Doesn't Work On Intermittent Starts

Every once in a while, turbo will not work. If I pull over a do a restart, it will work every time. It happened once about a year ago and now it seems to happen once every 5 starts. Bad wastegate? Covered under warranty?

2012 with 87k

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Sonata NF (2006-10) :: Humming Noise Pulsating On And Off

I have a 2009 Sonata GLS with about 45,000 miles on it. Lately when I am driving over 50mph it has been making a very annoying, high pitched humming noise. The noise seems to pulsate on and off. If I am going in a straight line, the noise is present, pulsing steadily. If I turn right, the noise speeds up and gets louder. If I turn left, the noise slows down or goes away completely. The noise is not super loud yet, but it is driving me crazy.

I took it into the dealership and they said it was a tire problem - one is worn more than the others (though not so much that it needs to be replaced yet)

From what I have been reading online, it sounds to me like it's a wheel bearing problem, and possibly the worn tire is a symptom of that problem. However I have also read that the average wheel bearing should last about 100,000 miles with proper maintenance. If it is a wheel bearing, it should be covered under warranty, shouldn't it?

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Chevrolet - Malibu :: 2011 - Loud Humming Noise?

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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Sonata I45 (YF - 2011+) :: 2013 - Deck Below The Back Window Starts Vibrating

When driving my 2013 Sonata with the rear windows open the deck below the back window starts vibrating horribly. You can actually see it moving up and down. If I also have the stereo on the vibrations distort the sound something awful. Close the window and the vibration goes away. Is it a defect, and is there a quick fix? Only problem with the car so far.

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Lexus LS 2007+ :: 2011 - Slight Humming Noise From The Front

I have a 2011 with 42k. While doing a front brake job, I noticed that the driver's side wheel hub while rotating it sounded noisy, it did not rotate as smoothly when compared to the right side. I have also noticed while driving that their is a slight humming noise from the front but always attributed it to the Bridgestone Turanazas. Maybe it is the tires and I just over reacting. Is this normal for the hub? Here is a video clip with sound. Is this wheel hub going bad?

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Lexus LS 2007+ :: 2011 - Diesel-like Noise And Humming In Idle

At idle, it sounds like a little diesel engine humming along. Everything is turned off. Does your car sound the same at idle? 2011 LS460 Sport

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Sonata NF (2006-10) :: Rhythmic Humming Noise If Give Slight Throttle At Around 50 Mph

09 i4 AUTO 47K miles ... When the car is running at around 50mph and if I give it very slight throttle (enough only to keep speed constant), I would hear this rhythmic humming noise. The hum rhythm has a frequency of about 1/2 second each. It is very muffled, almost like exhaust noise or tire noise. However, if I downshift to 4th gear, keep the same speed, and apply the throttle in the same way, the noise doesn't occur.

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