Sonata NF (2006-10) :: Engine Whine Noise Through Car Stereo When AC Is On
Aug 7, 2013
Ok, so I am not sure if i am having an AC issue or audio grounding issue...or both.
So here is the deal. I Have an aftermarket stereo. When I first got it, I Had to play around with the grounding points in order to eliminate engine whine noise. I got it perfect then lately it has become really really bad.
So I did some process of elimination and found this.
When I have the radio turned off, then whine is almost completely gone.
I just noticed that when I Have the AC on and radio on, the noise is there. In fact the AC is what makes the engine whine noise.
When I turn AC off, have radio on, no whine noise is coming through.
Now the kicker....I turned off the radio and accelerated while in park with AC on and radio off. I can hear a really loud {belt-like} noise coming from the engine. It occurs right at 2,500-3,000 RPM.
It definitely doesn't sound normal. When I drive normally I must have not noticed this noise because of the radio or it's too faint to hear to hear when outside of the garage.
Could it be some sort of tensioner on the AC belt tensioner? Not sure how this relates to my radio, but they go hand in hand and I would like to fix it.
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Not a wind noise....sometimes it sounds like it comes from below me, sometimes it sounds like it's coming from the dash. Dealer don't hear anything (of course), even when I'm in the car with the tech and can hear it (maybe I'm part dog.....who knows).
Here's my guess.......I think that it's the electric fuel pump. Sometimes if I'm outside the car, I'll hear a whine back in the fuel area that is almost the same pitch as the whine I hear at 70. Since the whine varies (or disappears) with engine rpm and application of the gas pedal, my thought is that I'm hearing the fuel pump hit a certain pitch, which causes the whine.
2006 Sonata?
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So I have a 2006 2.4 sonata with a transmission whine only when pressing on the gas in drive or reverse. I just flushed and replaced the fluid and it is at the correct level. What I want to know is since the transmission has in internal filter, is it possible for me to clean it out to get rid of the whining sound?
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Lately I've been noticing an Intermittent/random steering wheel whine. It happens rarely, but as of late I heard it a couple times. I checked the fluid and its topped off. Car has about 85k on it. I'm not sure when it was last replaced.
I'm thinking My next step would be changing the fluid. What is the actual procedure for doing this? Also, if I do go ahead and change the fluid and still get a whine here and there. What would be my next step?
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Few days ago I noticed the noise coming from the engine.
Went to dealership. They removed the oil pan and found metal shavings there .The car has 90,000 miles. They will put a new short block (will be covered by warranty ).
Since they basicaly will disassemble the whole engine, I thought to ask them to replace also drive belts, timing chain tensioner, not sure if the short block comes with the water pump , will ask them . W
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I notice it now for awhile this whining noise coming from the engine. It sounds like bearing noise to me. The car is still under warranty till 12 Oct 13. So if needs a fix, it have to happen soon.
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I notice a high pitch squeal when I turn off the car ignition and is synced with the slowing of the engine cooling fan. I don't notice any significant engine noise while the car is fully running in idle. Does this indicate that bearings are going bad in the electric engine fan assembly? If so, would the noise alone be justification for getting a warranty replacement by the dealer or would they need a total fan failure in order to get it replaced under warranty at no cost. If not, think its worthwhile to replace the fan module myself to avoid imminent failure?
2009 Sonata GLS (NF) 50k Mileage
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Yesterday I noticed a slight clacking noise coming from the engine, but it was only when I was just barely on the gas. It wasn't there at idle. Now today after an hour drive, it is loud, and at all rpm's. What could it be?
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I did a search and what I saw all had to do with noise at startup.Mine is during cruising. I have a 2007 Sonata 4 cylinder with 112K miles. Within the last few months it began making a slight chattering noise when I accelerate and when cruising. It's worst around 55mph. When I let off, it almost goes away, but is loudest when I just am feathering the pedal to maintain speed.
If I put the pedal down a little more and accelerate, it is not loud, but still faintly there. At first I thought it was a tapping sound, but I've let some of my friends listen and its more like a clattering, metal rattling, or vibration perhaps. Its hard to describe. A week ago I had the check engine light come on with a "P0011 Hyundai - 'A' Camshaft Position Timing Over-Advanced Or System Performance Bank 1".
I changed the oil and took it into a local shop and they cleared the code/light and checked things out (the light hasn't reappeared). I had them take off the valve cover and make sure the top end was not making the noise. It seemed fine to them. They suggested I take it to the dealer for further diagnosis. I have not yet. It does not make noise during start up. If I have time I will upload a audio recording later. What may be making the noise? It seemed to get a little louder after the latest oil change, but that's probably me being more sensitive to the problem.
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I have a 2006 Sonata GL, 2.4L, manual transmission, with about 130K miles. It has recently developed a knocking noise. The noise sounds metallic.
Some data: timing chain, guides, tensioner are all new, the noise is not coming from there.
Compression tests on the 4 cylinders came back with 200, 200, 180, and 200 psi readings. Tests were performed 3 different times, same gauge, all numbers came back the same.
The noise comes on only under acceleration (gas is supplied), and even then it's not consistent. For example, accelerating at 2500 rpm will make the noise, but the noise will go away at, say, 3000 rpm, while accelerating. Then again, the same thing can happen at 3200 rpm: accelerating will cause the noise, but up to a point, beyond which the noise goes away.The noise is not present at idle. I can always make the noise heard, just not consistently at the same rpm range.
I ran the engine with one spark plug disconnected at a time: the noise goes away when the #3 cylinder spark is disconnected.
Opinions vary: wrist pin, piston slap, rod bearing, etc.
Any tests I could run to narrow the problem? It has been difficult to pinpoint where the noise is coming from with a stethoscope...
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2006 Sonata 2.4. A couple weeks back I posted about how my engine is making a slight ticking noise. It makes the noise consistently. I recorded a video of the noise. What it could be. Here's the video: [URL] ....
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I have a 2006 hyundai sonata 3.3L V6. Only happens on a cold start. I'll start the car and it won't tick while at idle. But as I drive away ill hear it for maybe about 2 mins only maybe in first gear until the car slightly warms up and then it's gone completely.
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I have a '07 Sonata GLS with the 2.4-liter Theta engine and the 4-speed automatic. It has 52k miles on it and has always been serviced regularly. It's been a pretty decent car but is starting to feel a little tired, most notably the worn/bouncy suspension.
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Rattling noise in the belt area of the engine...
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My 2.4L engine is making a clanking noise while running. When I checked the oil level today, it was low by about 1.5 quarts. There's no check engine light.
Car has 74K miles now. I purchased the car two years ago with 35K miles. I have always performed regular maintenance myself. The car had its oil control valve replaced at 55K miles.
VIDEO : 2.4L Clanking Noise
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My 2009 Sonata 2.4l Sonata has been making a loud knocking noise when it is cold, but it will fade to almost nothing after it warms up. I tried to make a sound clip of the noise, but it was so distorted that I could not even make out the noise on the video.
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My 2007 hyundai sonota with the 3.3 starting making a horrible noise as if no engine oil and eventually just stopped. ( My son was driving it). The engine oil light did come on! I checked engine oil level, it was fine. I also checked oil filter and it looked good.
You could restart the car and drive it and it would run for 15 -20 minutes before the engine oil light comes on then 5 minutes later it dies. Let it sit and the same thing happens. So I pulled codes and got P-0011 (code of many causes)
I pulled the OCV (CVVT actuator) in the cylinder nearest the radiator (bank 1? not sure which bank this is). Actually it was the only one I could find. It was not easy and it is in a cramped spot almost directly under the intake manifold.
Never the less It tested at 7.8 ohms and it moved when I applied 12 volts. According to Haynes, this number is good and the action when voltage applied is in the correct range.
I am stuck now. Haynes manual implies there is only 1 OCV (CVVT actuator) for this year model, but gets confusing? Is there another OCV I can check, on the other bank near the firewall (bank 2).
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Recently my engine started making a rattling noise. It does not matter if the engine is warm or cold. In either condition it produces the same noise. The noise can be best heard at the back of the engine. My car is a Sonata 2.4 GLS from 2006 and has roughly 110000km on the odometer.
Hyundai Sonata Engine noise - YouTube
Tomorrow I'm dropping the car off to the dealer in hopes that they can find it.
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I recently bought a 2006 Hyundai Sonata 3.3 V6. Had another issue related to the rear wheel, which I fixed. Today, I changed the oil filter on the car (along with the oil). I have heard this engine noise before, but with the cover off it appears a little louder. It’s basically a ‘ticking’ sound.
The engine uses no oil, and has no other leaks. It has some noise on startup for maybe 1-2 seconds (like a loud lifter or something, but it goes away in less than 2 seconds, and at the same time the oil light goes out). I changed the filter today because I was told that a leaky gasket could result in the Filter not retaining oil between starts, causes some minor knock for a few seconds.
But anyway, this other ticking noise seems to be regular, regardless of condition. I have heard some people say that some engine noise is normal for this engine, but how about this?
Video w/ Noise: [URL] ....
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Any way, my 2007 Sonata with 57,000 miles just developed a whining noise on the right side of the engine compartment. It sounds like it is concurrent with RPM and I thought it might be the alternator, the drive belt or some pulley. I have even seen on the general internet that some others had a bad oil filter. To me, the noise seems to be coming from the alternator area. It is a relatively high pitched noise that almost sounds like an electric motor. Would love to get it fixed. I am nearing the 60,000 max on replacement from certain items and do not know if the alternator is covered.
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