Sonata I45 (YF - 2011+) :: Unusual Engine Noise / Loud Growl


Apr 20, 2010

I purchased a 2011 Sonata about 6 weeks ago. I like almost everything about it, but the engine is very noisy. I'm not talking about a loud growl when you accelerate, but it's almost sounds like there are 2 frequencies sounding at once. It's higher pitched and at times sounds like pinging or clattering. It's very hard to explain. Unfortunately, sometimes it's worse than others and when I've taken it to the dealer, it's not at it's worst. The dealer I purchased it from told me that it was normal, even though I drove another 2011 on their lot that did not have the sound. Another dealer told me that it was a loud fuel pump because of the high pressure of the injectors and that Hyundai is aware and is working on a new "cover" that should muffle the sound. When I contacted Hyundai directly, they did not know of any new "cover" being developed . Assuming I've described it well enough to know... The only thing I know to do is wait for it to get consistently worse, and take it in again.

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Sonata I45 (YF - 2011+) :: Engine Rattle / Growl At 2k Rpm

I hear a rattle or growl from the engine at 2,000 - 2500 rpm. Car performs fine. What it may be?

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Sonata I45 (YF - 2011+) :: 2014 - Loud Engine Noise

I have a 2014 Sonota GLS purchased in February of this year. Kept all service dates and oil changes. Have a problem with engine noise? Not like low oil knocking or anything, just cheap engine loud?

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Sonata I45 (YF - 2011+) :: 2014 GLS - Extremely Loud Engine Noise In Sport Mode

I have been driving my 2014 Sonata GLS in Sport mode with no problem. However, two days ago the engine got extremely noisy. I checked the Comfort and Normal modes - definitely no scary noise. Is this common?

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Sonata I45 (YF - 2011+) :: AC Deep Groan / Growl Sounds

2011 Sonata GLS

Sometimes the AC will make a deep low vibrating sound like a groan or growl. It will go away after a minute. Or if I turn off the AC then turn it back on it stops making the noise.

Mostly it happens at idle or in gear but car is stopped. Or a very low road speed. Occasionally it will go away if engine speed is raised (driving faster or revving engine in PARK). What's going on? Any known issues or TSBs?

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Sonata NF (2006-10) :: GLS Having Unusual Noise During Acceleration

My 2010 Sonata GLS recently started to emitting some noise during acceleration, seemingly come from under the hood. The noise is most noticeable between 15-25 MPH, and is more noticeable when I go uphill. The noise also becomes more frequent with higher speed.

I have a shared m4a file with the noise recorded on Google Drive [URL] ......

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Sonata I45 (YF - 2011+) :: Loud Clicking Noise When Go Above Certain Speed

When I hit bumps, yank to the left, or go above a certain speed my steering wheel will start shaking and a loud clicking noise happens.

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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+) :: Suspension Makes Loud Noise

I just bought used 2011 sonata 2.0T ltd. three weeks ago and i just figured that out when i turn the steering wheels both sides while car stops and pressing the brake pedal there is sound comes out from front and rear suspension.

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Sonata I45 (YF - 2011+) :: Loud Noise From Roof - Rim Is Scratched

I am at Hyundai dealership right now, I really wish I don't need to come back for roof noise again, the noise made me feel ' I don't give a about this car anymore', new york has most freaking terrible roads, there are sharp and deep potholes everywhere, causing the car making noise like shooting ak 47, so pissed, i was so outraged and The consequent is I scratched the rim when Cornering, any easy and low budget fix? I would change my rim in two years, but not now.

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Sonata I45 (YF - 2011+) :: Big Jerk And Rather Loud Noise When Shift The Car In Reverse

Today while backing into a spot at work (parked on a flat surface) my 2011 Sonata GLS automatic tranny, when I went to shift the car in reverse felt a big jerk and rather loud noise from shifting.... Haven't heard it since.... I think this happened to me once before many months ago... also on a side note why do I hear a almost a crunching noise when I am steering the car in reverse... I just had my car in for a oil change too.. I'm the only driver and owner of the car it has about 42k on the odometer.

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Sonata I45 (YF - 2011+) :: Loud Thunk Noise When Shifting Out Of Park

I've got my 2013 sonata and have noticed over the past couple weeks that after the car has sat for a while and I shift out of park that it makes a thunk/shifting sound that's coming from right below the car. I think it's coming from the gear shaft but I'm not a car expert so I can't be sure, it's more prevalent when I shift into reverse. What it could be? The car is still completely under warranty so I'm fine with making it the dealer's problem.

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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+) :: Loud Clicking Noise - Cat Converter Expanding?

I have a 2011 Sonata SE that I really like but it has a very loud clicking noise that comes from under the car. The dealer says that it is probably the cat converter expanding. I have contacted the Hyundai customer care and they say that this is normal.

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Sonata I45 (YF - 2011+) :: Loud Ticking Sound From Engine When Idle

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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Sonata I45 (YF - 2011+) :: GLS Exhaust Loud Metallic Noise (buzz / Rattle)

Just purchased a pristine 2011 GLS with very low mileage. The car is essentially mint (garaged + well cared for by previous owner), but has one, occasionally noticeable issue: once warmed up, a very loud metallic buzz/rattle noise is heard from the rear of the car, particularly under low RPM acceleration. I've had many cars in the past with similar noises, which all turned out to be loose heat-shields at various locations along the exhaust systems. With this in mind, I've felt all the heat-shields on my "new" car, and they all seem to be securely in place - though some (especially the rear one over the muffler) seem to be minimally supported by design, and could potentially be resonating with certain exhaust frequencies.

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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+) :: Loud Groaning / Creaking Noise Coming From Front Suspension Area

2011 GLS 2.4L auto, 40K, out of warranty

There is a loud groaning/creaking noise coming from the front suspension area. At low speeds, this noise dominates all other noises and is directly related to hitting the gas or pressing the brakes, which produces a forward or backward force on the front suspension and chassis. I can sometimes hear it briefly just by pushing against the parked car.

My hope is that I can just tighten up some bolts and make this go away, but other posts suggest it may be struts, stabilizer links or other non-obvious sources.

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Santa Fe (DM - 2013+) :: Unusual Noise From Engine

I am getting unusual noise from engine bay. I first thought it's the belt but doesn't seem like it. I am scheduled to visit a dealership but would like to get informed as much as I can.

[URL]...............

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IS F (2008-2014) :: Unusual Noise Coming From Engine Bay Which Comes And Go

So earlier today i noticed this unusual noise coming from the engine bay. You cannot hear it if your sitting inside the car. Only time you can hear it is if the car is running and you happen to be standing in front of the car.

The noise isn't constant and tends to come and go. After about 6 plus tries trying to film it, I finally got a clip where you can hear it for a bit.

2009 ISF - unusual noise from engine bay - YouTube

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Camry :: 2011 Loud Engine Noise Over 70mph?

2011 Camry 60k miles new tires about 10k ago, when accelerating over 70mph engine? becomes loud?

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