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01-03-2021, 08:08 PM | #1 |
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This is driving me nuts. 2 new noises in 2 days! That has to be some kind of record.
Around 3,300 until 3,800 my engine makes a strange ticking/grinding sound (no check engine light). Notice how it goes away and smooths out after 3,800 and all you hear is that wonderful induction noise. Any ideas? Vanos?
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01-03-2021, 08:24 PM | #2 | |
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01-03-2021, 09:08 PM | #4 |
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Nothing wrong, what car did you have before this?
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01-03-2021, 09:29 PM | #5 | ||
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2018 F80 ZCP and before that 440 Gran coupe. I've had quite a few NA cars. E39 540, 350Z, fJ80 Land Cruiser, Spec Miata and prob over 30 others. Yeah...I know...I have a serious car obsession.
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01-03-2021, 09:31 PM | #6 |
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Didn't sound anything like it did today the last time I drove it. Not sure if this matters, but I burn almost 2-3 bottles of oil every 5k. Not a single engine leak found.
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01-04-2021, 12:11 PM | #9 |
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^ I know. I can really hear it on my iPhone 12 with the volume cranked up, but can't hear it on my wife's iPhone 8.
I'll record a 3rd gear pull where the engine noise is a lot more pronounced.
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01-04-2021, 01:53 PM | #10 | |||
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01-05-2021, 05:11 AM | #11 |
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i replaced the crankcase non return valve on the back of driver side block and the breathers on the valve covers to intake manifold and went from 1 liter every 700 miles to 1 liter every 4k. also agree with checking the engine mounts
Last edited by white_4door; 01-05-2021 at 05:12 AM.. Reason: forgot some info |
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01-05-2021, 09:09 AM | #12 |
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01-05-2021, 10:50 AM | #13 |
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I had a very similar rattle after installing new cabin filters and intake filter. I would check that all those screws are fully torqued down and hopefully that helps! I know it's a simple solution but I had the exact same issue.
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01-12-2021, 05:10 PM | #16 |
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^I'm taking her in for her first oils change tomorrow. I'm going to go on a ride along with the mechanic. I'll keep you posted.
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01-12-2021, 07:21 PM | #17 |
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My money's on a bad exhaust gasket. Seems like a fairly common failure point. I've blown through 2 already - the original driver's side and its brand new replacement only a few weeks later. Had a similar rattle/flutter sound from 2.5-5k under heavy throttle. They're cheap so I bought a couple extras from FCP Euro just in case.
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01-13-2021, 10:32 AM | #19 | |
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If you can get the car up on ramps and crawl under the side just behind the front tire, the gasket is located where the cats connect to the headers. When mine went bad I could hear a ticking coming from that general area. |
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01-13-2021, 10:34 AM | #20 | ||
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01-13-2021, 11:29 AM | #21 |
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I have the same sound on my '07 6MT. 10,000km and three track days later, still sliding around rear end with PSS on mountain runs.
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