Holy Buzz Batman, reverberation at 4K RPM

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Jan 30, 2016 | 02:34 PM

#16

youra6

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From: Boulder, Colorado

Quote:

Originally Posted by Tommyy

didn't read previous posts so i apologize if this is redundant. Check your exhaust, i've been having problems with my flanges hitting my drive shaft and it made the weirdest noise. (i can post a video if you'd like)

If you can that would be great. Im not feeling any vibration. Its mostly the engine being loud.

Feb 1, 2016 | 04:42 PM

#17

Tommyy

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I also have picutres of it all if needed

Feb 1, 2016 | 05:43 PM

#18

youra6

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From: Boulder, Colorado

Quote:

Originally Posted by Tommyy

Evo 8 driveshaft hitting exhaust flange - YouTube
I also have picutres of it all if needed

Ah that sounds really weird... like a race of miniature aliens decided to colonize in your exhaust flange lol.

Alas, it sounds nothing like mine.

Feb 1, 2016 | 05:45 PM

#19

youra6

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Quote:

Originally Posted by NoReason

Not an answer to your problem but just want to say I feel your pain. I had a buzzing/rattle noise for the past 2 months when the car would get above 4k. It sounded like it was coming from the dash or inside the dash. It was very hard to pin point. I was doing my oil change and I put my light up on the part where the windshield wipers are and I noticed that the plastic cover was very loose. Secured it and it went away. It wasn't as loud yours though.

If I was you, go through your engine bay and underneath the car and wiggle things around before tearing into the engine. Good luck and let us know what you find!

Thanks for the encouragement! Right now my car is getting snowed in. May have to investigate later this week.

Anyone who has had their timing off experience similar sounds?

Last edited by youra6; Feb 1, 2016 at 07:14 PM.

Jun 17, 2016 | 06:59 PM

#20

youra6

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Just an update if anyone cares, ended up my car had no balance shaft but the crank pulley was starting to go. After replacing that, it resolved the issue.

Jun 17, 2016 | 09:44 PM

#21

barneyb

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From: Grand Island, NE

Balance shaft out of time.

Jun 18, 2016 | 07:14 AM

#22

youra6

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Quote:

Originally Posted by barneyb

Balance shaft out of time.

No... I have no balance shafts... And I just said it was the crank pulley.

Jun 18, 2016 | 11:21 AM

#23

barneyb

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Quote:

Originally Posted by youra6

No... I have no balance shafts... And I just said it was the crank pulley.

Sorry, didn't see page two. When you say crank pulley was starting to go do you mean the rubber? Years ago that was a problem on the 4G63 but I thought they fixed it.

Jun 19, 2016 | 02:27 PM

#24

youra6

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Quote:

Originally Posted by barneyb

Sorry, didn't see page two. When you say crank pulley was starting to go do you mean the rubber? Years ago that was a problem on the 4G63 but I thought they fixed it.

I have no idea, I took it to a mechanic and he said it was the crank pulley, I should have asked what specifically broke.

He just replaced it with a new OEM one. My car sounds like this currently:
It still has more resonance than a engine with a balance shaft, but its so much better now.

Jun 19, 2016 | 02:40 PM

#25

youra6

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double post

Jun 19, 2016 | 02:41 PM

#26

youra6

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What it sounded like before:

Jun 19, 2016 | 03:38 PM

#27

ctfpevoVIII

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From: connecticut

Quote:

Originally Posted by youra6

What it sounded like before:

January 25, 2016 - YouTube

that sounded scary!!! sounds much better now

Jun 19, 2016 | 04:06 PM

#28

Sharkbite2000

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Torque everything down, start with heats shield if you have one on , then turbo bolts, then go down the exhaust and check all the bolts are tight, I had a noise like that it was 1 bolt on the racing cat I had was coming lose.

Jun 20, 2016 | 11:09 AM

#29

youra6

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Quote:

Originally Posted by Sharkbite2000

Don't believe we ever checked the undercarriage, but the noise for the most part has been resolved.

Doesn't mean that there isn't a loose bolt somewhere though.