Nissan 370Z Forum

Nissan 370Z Forum (http://www.the370z.com/)
-   Engine & Drivetrain (http://www.the370z.com/engine-drivetrain/)
-   -   Engine is shaking and really loud (http://www.the370z.com/engine-drivetrain/138791-engine-shaking-really-loud.html)

Tee 04-18-2023 12:00 AM

Engine is shaking and really loud
 
Hey all,

I was driving and stopped on a traffic light, suddenly my check engine light came on, rpm dipped, and the car started shaking and was really loud (sounds like a cammed V8)

The check engine light went away but the car is still really loud, rpm constantly dips, shakes heavily especially at idle.

I replaced the cat and installed a HFC and a mechanic checked for any vacuum leaks, checked MAF sensors, throttle bodies, etc.

Spark plugs were recently replaced (however one seems darker than the rest). The mechanic suspects it could be the ignition coils, but there are no codes whatsoever when we scanned the ECU.

Could it be the ignition coils or fuel injectors even though there are no codes? If not, what could it be?

ZoomZ 04-18-2023 12:56 AM

Check electrical plugs to coils. Make sure they are snug and someone didnt break the lock tab.

vtec to vvel 04-18-2023 08:58 AM

Get a OBD II to see if there are any codes and go from there.

ZoomZ 04-18-2023 10:53 AM

Quote:

Originally Posted by vtec to vvel (Post 4038024)
Get a OBD II to see if there are any codes and go from there.

He already did I think.

"The mechanic suspects it could be the ignition coils, but there are no codes whatsoever when we scanned the ECU."

vtec to vvel 04-18-2023 11:12 AM

Quote:

Originally Posted by ZoomZ (Post 4038041)
He already did I think.

"The mechanic suspects it could be the ignition coils, but there are no codes whatsoever when we scanned the ECU."

I stand corrected :tiphat:

Richie370Z 04-10-2024 01:09 PM

Hello Tee, did you ever find out what the issue was? I ask because this same exact thing just happened to me. No Codes and all the same symptoms.

Thank you in advance..

Averying 04-10-2024 01:54 PM

Quote:

Originally Posted by Richie370Z (Post 4050067)
Hello Tee, did you ever find out what the issue was? I ask because this same exact thing just happened to me. No Codes and all the same symptoms.

Thank you in advance..


How long has the issue been happening? Ive noticed that sometimes the check engine light doesn’t appear until the car has been driven for a few miles and/or the car has been turned on/off a few times with the issue persisting.


Sent from my iPhone using Tapatalk


All times are GMT -5. The time now is 01:27 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2