Please help!! Loud whine/knock?

Sicotic · 10-07-2021, 08:30 PM

Been trying to figure this sound out, car made a loud clicking sound on freeway and then stalled. Replaced the battery, no luck, figured maybe the starter was bad, replaced it, it fired up and this is the noise it made. Took to mechanic, thought maybe flywheel came apart, pulled the transmission the flywheel was shot. Replaced clutch and flywheel, and fired it up and same sound. We seem to have traced the sound to the top back left of engine, sound like VVEL area. Here is a video any info would be greatly appreciated!

2009 touring 57k miles 6M/T w Nav

https://youtube.com/shorts/TKXbipfDxAU?feature=share

Spooler · 10-07-2021, 08:56 PM

Could be a rod knock or a VVEL ladder broke.

Trips · 10-07-2021, 08:57 PM

Sounds like a rod knock.

Not Good!

fryzia23 · 10-07-2021, 09:52 PM

Sound like a rod knock. To isolate which cylinder, let it idle and keep disconnecting and then connecting each coil one by one. If the knock almost disappears when coil unplugged, that’s the problem cylinder. I have exact same noise and traced it down to cylinder #5. I haven’t gotten to take it apart yet to exactly find the cause.

Rusty · 10-07-2021, 10:44 PM

Quote:

Originally Posted by Trips

Sounds like a rod knock.

Not Good!

Rod knock.

Dreadnaught · 10-08-2021, 04:46 AM

Rod knock it is.

Dreadnaught · 10-08-2021, 04:47 AM

And one more thing, find another mechanic. Fvcken flywheel my azz.

Sicotic · 10-08-2021, 05:34 AM

We thought rod knock as well, but traced the sound to what seems like a VVEL module on driver side?

Sicotic · 10-08-2021, 05:37 AM

How on earth would this happen if that’s the case, don’t drive it hard, only put 5k miles since I bought it, and only drive maybe 5 months out fo the year. Always done maintenance, so that would suck, whole reason bought the car because thought it would last especially not even driving it hard.

FrankEtier · 10-08-2021, 05:52 AM

Maybe the previous owner drove it hard?

Sicotic · 10-08-2021, 06:00 AM

I was second owner, and I literally got it from some old man lol oh well I guess I got to just face the facts haha

SonicVQ · 10-08-2021, 06:47 AM

To my ear, that is something in the valve train.
Rod knock is typically a lower frequency with a solid "thud" sound, with a rattle when you rev it.

Lowest cost next option: Pop off the valve covers and have a look.

Sicotic · 10-08-2021, 09:39 AM

I’m almost certain it’s not rod knock as the sound is coming from but I would say is the VVEL module, sounds like something in there is banging around maybe the lever arm that’s inside there?

redondoaveb · 10-08-2021, 10:24 AM

Quote:

Originally Posted by Sicotic

How on earth would this happen if that’s the case, don’t drive it hard, only put 5k miles since I bought it, and only drive maybe 5 months out fo the year. Always done maintenance, so that would suck, whole reason bought the car because thought it would last especially not even driving it hard.

Maybe bad gallery gaskets and low oil pressure?

Rusty · 10-08-2021, 12:00 PM

Put an oil pressure gauge on and see what the pressure is.

10-07-2021, 08:30 PM	#1 (permalink)
Sicotic Base Member Join Date: Sep 2020 Location: Westerville, Ohio Posts: 23 Drives: 09 Nissan 370 CY M6 Rep Power: 4	Please help!! Loud whine/knock? Been trying to figure this sound out, car made a loud clicking sound on freeway and then stalled. Replaced the battery, no luck, figured maybe the starter was bad, replaced it, it fired up and this is the noise it made. Took to mechanic, thought maybe flywheel came apart, pulled the transmission the flywheel was shot. Replaced clutch and flywheel, and fired it up and same sound. We seem to have traced the sound to the top back left of engine, sound like VVEL area. Here is a video any info would be greatly appreciated! 2009 touring 57k miles 6M/T w Nav https://youtube.com/shorts/TKXbipfDxAU?feature=share

10-07-2021, 08:56 PM	#2 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,504 Drives: 2013 Nismo 370z Rep Power: 2684391	Could be a rod knock or a VVEL ladder broke. Trips and JARblue like this.

10-07-2021, 08:57 PM	#3 (permalink)
Trips Administrator Join Date: May 2009 Location: Disneyland, Ca Posts: 8,728 Drives: 🔰 Rep Power: 10	Sounds like a rod knock. Not Good! JARblue and Rusty like this. __________________

10-08-2021, 04:46 AM	#6 (permalink)
Dreadnaught Track Member Join Date: Dec 2009 Location: Farmington, Utah Posts: 582 Drives: 14 SR 370z 6MT Rep Power: 10139	Rod knock it is. __________________ Ford Diesel and Heavy Line Technician at your service.

10-08-2021, 04:47 AM	#7 (permalink)
Dreadnaught Track Member Join Date: Dec 2009 Location: Farmington, Utah Posts: 582 Drives: 14 SR 370z 6MT Rep Power: 10139	And one more thing, find another mechanic. Fvcken flywheel my azz. Birdiev likes this. __________________ Ford Diesel and Heavy Line Technician at your service.

10-07-2021, 09:52 PM	#4 (permalink)
fryzia23 Enthusiast Member Join Date: Dec 2010 Location: new jersey Posts: 447 Drives: 2011 MB 370Z NISMO Rep Power: 475	Sound like a rod knock. To isolate which cylinder, let it idle and keep disconnecting and then connecting each coil one by one. If the knock almost disappears when coil unplugged, that’s the problem cylinder. I have exact same noise and traced it down to cylinder #5. I haven’t gotten to take it apart yet to exactly find the cause.

10-08-2021, 05:34 AM	#8 (permalink)
Sicotic Base Member Join Date: Sep 2020 Location: Westerville, Ohio Posts: 23 Drives: 09 Nissan 370 CY M6 Rep Power: 4	We thought rod knock as well, but traced the sound to what seems like a VVEL module on driver side?

10-08-2021, 05:37 AM	#9 (permalink)
Sicotic Base Member Join Date: Sep 2020 Location: Westerville, Ohio Posts: 23 Drives: 09 Nissan 370 CY M6 Rep Power: 4	How on earth would this happen if that’s the case, don’t drive it hard, only put 5k miles since I bought it, and only drive maybe 5 months out fo the year. Always done maintenance, so that would suck, whole reason bought the car because thought it would last especially not even driving it hard.

10-08-2021, 05:52 AM	#10 (permalink)
FrankEtier Base Member Join Date: Jul 2019 Location: McKinney, TX Age: 48 Posts: 143 Drives: 2014 370Z SC Rep Power: 11604	Maybe the previous owner drove it hard? __________________ ‘14 Topgunz Speedworks Rotrex Supercharged VR30 7AT 370Z Magma Red. @liquid.magma

10-08-2021, 06:00 AM	#11 (permalink)
Sicotic Base Member Join Date: Sep 2020 Location: Westerville, Ohio Posts: 23 Drives: 09 Nissan 370 CY M6 Rep Power: 4	I was second owner, and I literally got it from some old man lol oh well I guess I got to just face the facts haha

10-08-2021, 06:47 AM	#12 (permalink)
SonicVQ Base Member Join Date: Jan 2016 Location: Ontario Posts: 230 Drives: G37 Sport Rep Power: 6720	To my ear, that is something in the valve train. Rod knock is typically a lower frequency with a solid "thud" sound, with a rattle when you rev it. Lowest cost next option: Pop off the valve covers and have a look.

10-08-2021, 09:39 AM	#13 (permalink)
Sicotic Base Member Join Date: Sep 2020 Location: Westerville, Ohio Posts: 23 Drives: 09 Nissan 370 CY M6 Rep Power: 4	I’m almost certain it’s not rod knock as the sound is coming from but I would say is the VVEL module, sounds like something in there is banging around maybe the lever arm that’s inside there?

10-08-2021, 12:00 PM	#15 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 34,851 Drives: 2011 Nismo GM 6M Rep Power: 2684436	Put an oil pressure gauge on and see what the pressure is. sx moneypit, ZoomZ and redondoaveb like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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