Possible Engine issue-need opinion

Mikriman · 09-13-2019, 09:30 AM

Good Day All,

It’s been a while since I’ve had the hood open and heard my engine.
Can someone tell me if this sounds normal at engine idle?

https://youtu.be/Rx5lESZeLac

Any input would be greatly appreciated.

Nooree01 · 09-13-2019, 09:52 AM

I feel like it's normal, sounds like the valve chatter is a little loud

Sent from my SM-G975U using Tapatalk

CrunchyCajun · 09-13-2019, 10:44 AM

This guy fixed it with SeaFoam

https://www.youtube.com/watch?v=6op-io-777I

Spartan 1771 · 09-13-2019, 11:06 AM

Quote:

Originally Posted by CrunchyCajun

This guy fixed it with SeaFoam

https://www.youtube.com/watch?v=6op-io-777I

I use Seafoam in all my cars, but as a fuel additive. I add a can after each oil change. I've never used it as an oil additive, but I'm curious to see if it remedies this issue.

SouthArk370Z · 09-13-2019, 11:10 AM

You should be able to track down the source of the noise with a mechanic's stethoscope or a piece of garden hose (one end to ear while moving other end around engine compartment). Be very careful around moving parts when exploring.

If it's valve train noise, using ester oil may quieten things down.

BettyZ · 09-13-2019, 09:50 PM

Normal lift chatter. Scared the F outta me when I first heard it w my hood up, window down, in a closed garage. Ester oil quieted it down a bit but it is still rather loud in those conditions I just mentioned.

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JARblue · 09-14-2019, 02:37 AM

Sound normal. One time a tire monkey at NTB told me I had "spark knock". I told him to stick to tires

Mikriman · 09-14-2019, 11:17 AM

Thanks for the responses guys—took it for a ride this morning—checked under the hood again and it doesn’t seem so bad now. I’ve had a few car issues lately and I think I’m just paranoid of what’s next to go wrong. Still fighting an intermittent battery drain....

SouthArk370Z · 09-14-2019, 12:07 PM

Quote:

Originally Posted by Mikriman

... Still fighting an intermittent battery drain....

Remove one of the battery terminal and hook up an ammeter (in series). Note how much current the car is pulling. It won't be zero; there will a little bit of current for the ECU. Start pulling fuses until the current drops. You've isolated the problem to whatever is connected to that fuse.

BettyZ · 09-15-2019, 02:28 PM

Quote:

Originally Posted by Mikriman

Thanks for the responses guys—took it for a ride this morning—checked under the hood again and it doesn’t seem so bad now. I’ve had a few car issues lately and I think I’m just paranoid of what’s next to go wrong. Still fighting an intermittent battery drain....

No worries. Paranoia and valve chatter make evil companions. I was tweaking out for a month with mine.

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09-13-2019, 09:30 AM	#1 (permalink)
Mikriman Base Member Join Date: Mar 2018 Location: DFW Posts: 26 Drives: 2016 370Z Nismo 7AT Rep Power: 7	Possible Engine issue-need opinion Good Day All, It’s been a while since I’ve had the hood open and heard my engine. Can someone tell me if this sounds normal at engine idle? https://youtu.be/Rx5lESZeLac Any input would be greatly appreciated.

09-13-2019, 09:52 AM	#2 (permalink)
Nooree01 Base Member Join Date: Sep 2018 Location: Kansas City, MO Posts: 108 Drives: 2011 370z Gray 7AT Rep Power: 7	I feel like it's normal, sounds like the valve chatter is a little loud Sent from my SM-G975U using Tapatalk Spartan 1771 likes this.

09-13-2019, 10:44 AM	#3 (permalink)
CrunchyCajun Base Member Join Date: Aug 2010 Location: MD Posts: 73 Drives: 09 tour/sprt wht 7A Rep Power: 401	This guy fixed it with SeaFoam https://www.youtube.com/watch?v=6op-io-777I Spartan 1771 likes this.

09-13-2019, 11:10 AM	#5 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	You should be able to track down the source of the noise with a mechanic's stethoscope or a piece of garden hose (one end to ear while moving other end around engine compartment). Be very careful around moving parts when exploring. If it's valve train noise, using ester oil may quieten things down. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

09-13-2019, 09:50 PM	#6 (permalink)
BettyZ A True Z Fanatic Join Date: Aug 2018 Location: Chicagoland Age: 37 Posts: 5,261 Drives: A Garage Queen Rep Power: 2684371	Normal lift chatter. Scared the F outta me when I first heard it w my hood up, window down, in a closed garage. Ester oil quieted it down a bit but it is still rather loud in those conditions I just mentioned. Sent from my SM-G955U using Tapatalk __________________ '14 MB Nismo \| Boost Lab 6870 1.32 AR 553 HP / 471 ft.-lbs. Betty Mods

09-14-2019, 02:37 AM	#7 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,450 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	Sound normal. One time a tire monkey at NTB told me I had "spark knock". I told him to stick to tires Spartan 1771 and Ghostvette like this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

09-14-2019, 11:17 AM	#8 (permalink)
Mikriman Base Member Join Date: Mar 2018 Location: DFW Posts: 26 Drives: 2016 370Z Nismo 7AT Rep Power: 7	Thanks for the responses guys—took it for a ride this morning—checked under the hood again and it doesn’t seem so bad now. I’ve had a few car issues lately and I think I’m just paranoid of what’s next to go wrong. Still fighting an intermittent battery drain.... BettyZ likes this.

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