Sonata I45 (LF 2015+) :: Buzzing Sound Coming From Engine / Louder When Accelerate?

I cant recall if these sounds were there when i first bought the car, probably because i have the radio on most times. I think the buzzing sounds were present in the last month at least.

After i start up my car and even after idling for a while, i hear a buzzing sound coming from the engine. It gets louder when I accelerate. When I let go of the gas, the buzzing sound lags for a few seconds and then quiets down a little bit, but still can hear it in the background.

I lifted the hood up to listen more closely. I am not totally sure, but i think i can also hear a faint hissing sound ( sounds like leaking air?). I cant pinpoint where it is, but its around the engine.

I also notice that when I am idle, the MPG number in the dashboard is dropping fairly quickly. Like 0.1 mpg every 20 seconds. This is new and started today. I last drove it 4 days ago and didn't notice it happening then and i watch the mpg very closely every time i drive. Could there possibly be some gas leak?

View 173 Replies

Prius (Gen 3) :: Humming Sound In Rear End - Louder When Going Fast

My 2010 is humming like bad.....I think it's the rear. the faster you go, the louder it is. Put new tires on - same noise.

View 5 Replies

Kia - Rondo :: Humming / Buzzing Sound Getting Louder As Drive Went On

I have a 2008 Kia Rondo. Recently we took a trpi. Halfway there, we started to hear a humming/buzzing sound (similar to that of a remote control airplane). It was the loudest when we would stop at a stop light/sign, but would stop when the car was put into park. The noise grew louder and louder as the drive went on. The noise was coming from the front region of the car, but couldn't decipher exactly where. We were able to hear it from the inside of the car as well as the outside. The noise stopped once we reached our destination, but then started back up again on the way back home. Once home, it stopped again and our auto shop couldn't find anything wrong with it. What it could be. Hasn't done it since we've been home. Wondering if driving through the mountains put stress on it. What could be making that noise?

View 4 Replies

Sonata NF (2006-10) :: ESC Light Came On - Engine Has Been Revving A Bit Higher

Just this week my ESC light has come on and stayed on. Seems like the engine has been revving a bit higher too along with this light. Could this be a coincidence? The car doesn't seem to handle any differently. How to get this light off?

View 3 Replies

Sonata NF (2006-10) :: Slight Ticking Noise From Top Of Engine And It Is Slowly Getting Louder

Have a 2006 Sonata GLS with a 2.4 mileage has rolled over 207k .... I started hearing a slight ticking noise from the top of my engine and it has slowly gotten louder, now it can be heard inside the vehicle and more so when revving the engine...it also has 2 stored codes P0011 and P0456, I'm not too concerned with the evap code at the moment, I have decided to replace the oil control valve and clean or replace the lash adjusters...here is my problem, I have mechanic experience but only on Honda, all the youtube videos I have found for valve lash adjustment or replacement are for Mitsubishi and chevy engines, so I am not sure what the adjusters actually look like on this engine and if I can even do them without removing the timing chain.

View 14 Replies

Sonata NF (2006-10) :: Engine Is Revving A Bit Higher At Idle - Code P0507

Having DTC of P0507? Engine is revving a bit higher at idle than normal.

View 4 Replies

Accent MC (2006-11) :: Humming Noise That Gets Louder As Speed Increases

Starting at about 30mph there's a humming noise that gets louder as speed increases. It doesn't seem to change if I am steering right or left and i have no steering wheel shake or any sort of noticeable bumping at 60mph. Could this just be my tires making noise, they are quite worn by now.

View 12 Replies

Sonata NF (2006-10) :: V6 Idling Erratically (revving And Slowing) After Starting A Cold Engine

My 09 Sonata LTD V6 was sometimes idling erratically (revving and slowing) after starting a cold engine. It never happened in the previous 3 winters I have owned it. I took it to the dealer for service and they said an ECM update was just released, described on the invoice as "TSB 10FL002 FOR COLD START ROUGH IDLE".

View 2 Replies

Sonata I45 (YF - 2011+) :: Hammering Sound Getting Louder With Speed

This is my 2011 2.4L Hyundai Sonata with around 78,000 miles(no warranty). For the past two days car wasn't accelerating as it used to and all of a sudden today it started to produce hammering sound. Sounds gets loud with speed. Gears are switching like normal. There is a warning signal also that is attached in the picture below.

[URL] ....

I want to know where is the sound coming from? Should i fill any oil? If so what brand and where is the nozzle located.

View 49 Replies

Sonata NF (2006-10) :: Power Steering Seems To Be Getting Louder

I have had my 06 Sonata for about 3 years now. It has about 52,000 miles on it and it seems like over the past couple months the power steering has gotten louder. I checked the fluid and it is fine. My brother had a ford taurus that always had loud power steering but never presented any problems. Mine has never presented any problems either, it just seems like it has gotten louder. my question is, should I be concerned that it may lead to trouble in the future?

View 2 Replies

Golf/GTI VI :: Louder Revving Especially In 2nd Gear And When Just Coasting

My 3 week old car just got louder yesterday. Today I noticed it more. Only 1.3k on it. Louder revving, esp. in 2nd, and louder just coasting too. Is everything all right? Before now it was quiet as a whisper.

View 8 Replies

Accent MC (2006-11) :: Cold Ticking Sound Getting Louder

Alright so my car is up to 112k miles, other than oil change, a battery,tires, and a new ignition (tumblers fell apart somehow) its had zero maintenance really done to it. Which I know, this means its long over due for things like spark plugs, timing belt, and other mic. stuff. Its almost all highway miles, and really has no problems. I haven't put much into it because it hardly gets driven in the summer since I ride my motorcycle. The only issue is that Indiana has had a lot of rain this year so ive been driving it more.

The Problem- for months now its made a light ticking sound on start-up for about 30 seconds, and it fades away. If I rev the engine the sound gets faster, but still takes time to go away. As of Recently, the sound has gotten louder for about the first 10 seconds, and I'm worried it may become a serious issue and leave me stranded because I drive about an hour one way to work every day. So before I start throwing parts at it, where should I start?

Timing belt?
Valve Adjustment? (not sure how to do this but I'm sure there is a guide)
Plugs?

No I'm not running a FRAM Filter, its a Mobile 1, with full synthetic oil changed about every 6-7k miles. I plan to do the belt and spark plugs as soon as I get some consistent time off, but that may not be until it gets cold again.

View 19 Replies

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...

View 8 Replies

Sonata NF (2006-10) :: Automatic Transmission Slipping In First Gear Like Revving In Neutral

I have an 06 sonata 4 cyl automatic.Today the transmission was slipping in first gear like the car was revving in neutral.Then after restarting the car it was completely normal. Code P0731 showed up.

View 1 Replies

Kia - Optima :: 2006 - At Start Up Sound Rough And Getting Louder At Higher RPMs

.I know this post sounds odd but its true. My wife has a 2006 Kia Optima with 197,000 miles and NOTHING has gone wrong. Well almost nothing. We've only had to replace the water pump and windshield wiper motor. We have it the oil changed and fluids checked and topped off before the factory recommendation. We bought the car in 2008 with 15,000 miles. Most of her miles are highway, to and from work.

Now my question. Its starting to sound rough, like its getting louder at higher RPM's. The ride was never smooth but it feels like the suspension is wearing out a bit. Should I risk taking it to a shop, having them look at it and tell me 1,000 that need to be replaced or fixed, or do we just let it ride until the wheels fall off? I feel like the old "if it aint broke, don't fix it" saying applys here. I had a friend tell me I should have really had the timing belt replaced by now. So Im kind of at a loss.

View 14 Replies

Sonata NF (2006-10) :: Nasty Sound From Engine Bay

So this has been happening for a few months now. When the hood is closed it sounds like a fan with a bad bearing slowing down. I had the hood open today and turned the car off and it scared me. I've only ever heard it faintly since I have never turned the car off before with the hood open. It's definately ALOT louder with the hood open vs. closed...for obvious reasons... (See attached Video).

2010 Sonata GL Sport 2.4 4 banger
87,000Kms on the clock

Video : 2010 Hyundai Sonata Interesting noise - YouTube

View 16 Replies

Pontiac :: 2004 - Humming Noise At About 20 MPH And Gets Louder With Speed

I have an 04 Pontiac (wifes car) as you start driving you hear a humming noise that starts at about 20mph and gets louder with speed at high speeds it just stay's steady, changes when changing lanes and gets quieter as you slow down, I know its not the engine or transmission as I can rev the engine and only when the car speeds up the sound changes (louder). I've been seeing similar post and its either CV joint or bad bearings but need more of a defined answer from a mechanic who recognizes this situation. Also the sound does make a little vibration felt through the steering wheel and gas pedal but again changes when steering is turned back and forth which I think means it's somewhere in the drive shaft and axle area or steering system.

View 1 Replies

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?

View 11 Replies

Ford Excursion :: Screechy Sound That Got Louder When Revved The Engine?

Started up my rig yesterday and heard a very strange screechy sound that got louder when I rev'ed the engine. After a minute or two it went away. Same sound this morning and whenever the truck sits for more than an hour. Sounds like a turbo problem and is coming from that area under the hood..?

View 11 Replies