Engine knocking/ticking/clunking sound

HXCloud · 01-11-2023, 07:56 PM

Hey guys, I'm hoping one of you might be able to help diagnose this. I'm working from home every day until Sunday so I don't have the option of going to the mechanic just yet.

This issue started fairly recently, and it doesn't happen all the time. Sometimes it'll start right after I turn the car on, sometimes it'll start once I've been driving a bit. It's intermittent when it starts and doesnt usually last more than 10 seconds to a minute at a time before it subsides, but it's LOUD

EDIT: https://drive.google.com/file/d/1R0L...ew?usp=sharing

https://drive.google.com/file/d/1XSN...ew?usp=sharing

HXCloud · 01-11-2023, 07:59 PM

Alright, I thought I uploaded the videos of the sound but they don't seem to be posting?

avioni · 01-11-2023, 09:56 PM

you can get a hose, one end to your ear the other end to different points of the engine to try and find where the noise is coming from. sounds bad but could be just a pulley

Spooler · 01-11-2023, 10:03 PM

Kinda Sounds like a VTC sprocket. It may be a galley gasket issue. Check your oil and oil pressure. It also could be the belt tensioner slapping. Replace the belt and tensioner if it is. You are going to need to find it. It could be a rod bearing but if they have issues they knock all the time or under load.

loon · 02-08-2023, 12:32 PM

Sounds like you're able to drive fine with it like that right? Like it's not doing that at 4k rpm+?
Sounds like what the guy above said, some loose pulley or MAYYYYYBE rod knock but it really doesn't seem like rod knock to me

Dreadnaught · 02-09-2023, 02:56 AM

The videos won't play.

I agree with what Spooler says.

Any results?

01-11-2023, 07:56 PM	#1 (permalink)
HXCloud Base Member Join Date: Feb 2019 Location: Florida Posts: 15 Drives: 2016 Nismo Rep Power: 6	Engine knocking/ticking/clunking sound Hey guys, I'm hoping one of you might be able to help diagnose this. I'm working from home every day until Sunday so I don't have the option of going to the mechanic just yet. This issue started fairly recently, and it doesn't happen all the time. Sometimes it'll start right after I turn the car on, sometimes it'll start once I've been driving a bit. It's intermittent when it starts and doesnt usually last more than 10 seconds to a minute at a time before it subsides, but it's LOUD EDIT: https://drive.google.com/file/d/1R0L...ew?usp=sharing https://drive.google.com/file/d/1XSN...ew?usp=sharing __________________ Straight roads are for fast cars, turns are for fast drivers. Last edited by HXCloud; 01-11-2023 at 08:07 PM. Reason: Provided links for videos

01-11-2023, 07:59 PM	#2 (permalink)
HXCloud Base Member Join Date: Feb 2019 Location: Florida Posts: 15 Drives: 2016 Nismo Rep Power: 6	Alright, I thought I uploaded the videos of the sound but they don't seem to be posting? __________________ Straight roads are for fast cars, turns are for fast drivers.

02-08-2023, 12:32 PM	#5 (permalink)
loon Base Member Join Date: Jan 2023 Location: FL Posts: 30 Drives: 2014 z34 Bl M6 Rep Power: 547	Sounds like you're able to drive fine with it like that right? Like it's not doing that at 4k rpm+? Sounds like what the guy above said, some loose pulley or MAYYYYYBE rod knock but it really doesn't seem like rod knock to me __________________ Black 2014 370z Sport Touring MT \| FortuneAuto 500s \| 25mm Rears 20mm Fronts \| Invidia Gemini Exhaust

02-09-2023, 02:56 AM	#6 (permalink)
Dreadnaught Track Member Join Date: Dec 2009 Location: Farmington, Utah Posts: 582 Drives: 14 SR 370z 6MT Rep Power: 10139	The videos won't play. I agree with what Spooler says. Any results? __________________ Ford Diesel and Heavy Line Technician at your service.

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01-11-2023, 09:56 PM	#3 (permalink)
avioni Base Member Join Date: Jan 2022 Location: PR Posts: 22 Drives: 370z 7 speed Rep Power: 3	you can get a hose, one end to your ear the other end to different points of the engine to try and find where the noise is coming from. sounds bad but could be just a pulley

01-11-2023, 10:03 PM	#4 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,506 Drives: 2013 Nismo 370z Rep Power: 2684391	Kinda Sounds like a VTC sprocket. It may be a galley gasket issue. Check your oil and oil pressure. It also could be the belt tensioner slapping. Replace the belt and tensioner if it is. You are going to need to find it. It could be a rod bearing but if they have issues they knock all the time or under load.