Engine is noisy?

Tiny
04XTERRAC
  • MEMBER
  • 2016 HYUNDAI AZERA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 137,427 MILES
This car is fairly new. When we got it, the engine was silent and very smooth with only 60,000 miles on it. Over time it has become very loud. Upon startup, the engine has a loud tick which goes away when it's put into gear, and comes back while accelerating. The car idles around 1,200 RPM's constantly, as I push on the gas it gets louder the higher RPM's are.
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Saturday, March 9th, 2019 AT 2:55 PM

11 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,622 POSTS
Thanks for the video, two things come to mind first it looks like the throttle bore needs to be serviced and the oil needs to be changed, can you confirm the engine oil services have been kept up with?

Here are two guides to help walk you through the repairs. Please leave the throttle body connected (wiring) when you do the service.

https://www.2carpros.com/articles/how-to-change-engine-oil-and-filter

and

https://www.2carpros.com/articles/throttle-actuator-service

Please run down these guides and report back.
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Thursday, June 27th, 2019 AT 11:06 AM
Tiny
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The oil has been kept up with frequent changes. The throttle body was cleaned when the spark plugs were changed about two weeks ago, and the noise still exists.
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Friday, July 12th, 2019 AT 12:05 PM
Tiny
KEN L
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Can you please a video under the hood while the engine is running and the noise is present? I think you may have a camshaft actuator that is going out. Also what weight oil are you using?
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Saturday, July 13th, 2019 AT 12:06 PM
Tiny
04XTERRAC
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Sorry it took so long, I have the video. I use 5W30 Full Synthetic. The video is a little loud, and the camera falls but the sound is very noticeable
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Tuesday, July 23rd, 2019 AT 9:43 AM
Tiny
KEN L
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O wow, yes stop driving the car if have not already, it sounds like you lost the timing chain guides or a camshaft actuator is gone, can you tell if the sound is coming from the top or bottom of the engine, front or rear? Here is an exploded view of the engine try to visualize it when you hear the noise to get a location so we can go from there. Check out the diagrams (Below). Please let us know what you think.
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Tuesday, July 23rd, 2019 AT 1:13 PM
Tiny
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Just now it sounded near the driver. Normally it sounds more mid, almost right in the middle of the engine. I have gone almost 20,000 miles with this noise already, it's only on startup that it makes the click, once it warms up a little, it sounds like a more studdered hum with a steady quick ticking noise near the front of the car.
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Wednesday, July 24th, 2019 AT 5:24 PM
Tiny
KEN L
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Sounds like a timing chain/guide issue and you may be putting metal inside the engine which will shorten its life. Can you pill the dipstick and using a flashlight see if there are metal flakes? They will be very small btw, Let me know.
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Wednesday, July 24th, 2019 AT 7:06 PM
Tiny
04XTERRAC
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Sorry that it took so long to check, I have been out of town. It didn't look like there was any metal in the oil, but I did notice it was really dark already, and I got an oil change last month, about 1K miles ago. I was talking with a buddy of mine about the timing chain, and he said that it didn't sound like it since the sound goes away after warming up for about 30 seconds. Although it does die down quite a bit, it's still really rough sounding as it drives. Almost like a straight pipe, but coming from the engine. There are no engine codes coming from the car either. I don't think it's exhaust because I've checked so many times for smoke, or a smell.
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Friday, July 26th, 2019 AT 4:20 PM
Tiny
KEN L
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We can try removing the serpentine belt and then start it to see if the noise is still there this will eliminate any accessory that maybe making the noise. Check out the diagrams (Below). Please let us know what happens.
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Saturday, July 27th, 2019 AT 10:44 AM
Tiny
04XTERRAC
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I am sorry that it took me so long to reply. I took the belt off and the noise still continued. I can recall a while ago accidentally skipping an oil change, I don't think I went too far on it without the change, but the oil was well used and very dark. I'm not sure if that could have caused some damage inside the engine. The thing that gets me the most is that it's very loud on start and while it's cold, then once it's at the optimal temperature, the noise dies down to where it only picks up when I press the gas. It sounds like it's coming from inside the engine, almost the top of the engine. The spark plugs and oil are almost new, just about 3,000 miles each. No change of noise if the AC is running also.
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Monday, August 26th, 2019 AT 6:03 PM
Tiny
KEN L
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With the engine running can you please take your phone and hold it over the engine toward the rear then move it toward the front of the engine and then down as far as you can in front (timing chain)? So I can get an idea of where the noise is coming from please.
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Tuesday, August 27th, 2019 AT 10:45 AM

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