Hello again everyone, im facing a problem and i can't figure it out
suddently i have this (pretty loud) ticking sound coming from the engine bay, but the real problem is not the sound but the car will cut power and flash CEL around 4500rpm, not always
Detailed Explanation:
-Noise starting at 2800 RPM and over
-Noise gain intensity over time,more engine temperature related, but not Related to the RPM, Keeps the same frequency
-Noise just driving, not in neutral
-Noise only when car under acceleration or light gas, not in deceleration or no gas
-Noise just when car is warm
-Flash Cel mostly under heavy load and high gears
-Idle as usual
-Now will take more time to turn it on when engine hot, Before it didn't had this issue
Things i done:
-New filters (Oil-Air)
-New oil
-New Spark Plugs
-Compression test
-Cleaned Maf
-Injectors Checked and cleaned
-Oil pressure is good
-Temps are good

Can this be a Coil Plugs Problem?
Thanks to anyone who can Help

 

Bump for an Answer.

 

As always, i'm just a yutz who likes to beak ideas sooooo, check accesory belt and all pullleys for anything weird?
Sounds kinda mechanical more than electric/sensor to me...remember though, I fumble about until something happens...

 

Is the car tuned to blink the CEL for knock count? That's kind of what it sounds like?

How did the old spark plugs look? Are you running stock coil packs or a COP kit? Do you have any stored codes?

 

Belts are good, timing belt an accesssory, done less than 7000km, changed also 2 worn out pulleys, and the sound seem to come from the opposite side

 

old plugs were good, less than 7000km, yes car tuned for flash on CEL, im running standard Coil Packs, no stored codes
i try to convert a video and post it, to understand the sound

 

hmmmm, so it is detecting knock but the plugs look good and you have no stored codes.

I wonder if you are having an issue with the exhaust or something banging around causing knock detection and thats pulling timing.
Try to get a video of the noise but even that is tough because of the quality loss but it might help.

Also anything you can do to narrow down where the noise is coming from would be helpful.

 

Climb under the car and look around the exhaust and subframe. If it’s only while in gear and moreso when the vehicle is warm, it is possible you have a worn engine mount that allows the drivetrain to rock under load. This can cause the exhaust to smack the subframe and give some false knock. I have an aftermarket 3” exhaust and the clearance is…. minimal. I had contact issues there that were causing false knock.

You may have other gremlins in there but that would be a good start.

 

i tried to locate the sound, but in neutral is doing nothing, the sound is like a injector clicking, but louder, only when i press the throttle and over 2800rpm...if i release the gas, even at 4500rpm the sound stops
i have a video but i need some time for the conversion and the max file size, i don't know if i can post a gdrive link

 

It’s also possible you have an exhaust leak. Check torque on all the nuts and bolts on the exhaust side - manifold, turbo, DP, all of it.

 

already checked everything, from the intake to the exhaust, i had already the exhaust hitting the subframe some time ago, already fixed this so i i will exlude this one, and is not the same sound, is like a fast click, no rattling

 

https://drive.google.com/file/d/1JZR...ew?usp=sharing
here is the link for the video of the sound, better with headphones, i can hear it from the mobile, but not from the pc

 

I'm struggling to hear "clicking", I hear like a buzz, but I can't tell if that's the noise you are describing or if its some audio artifact.

If it is the "buzz", I don't know man. It doesn't sound familiar but I would check for exhaust leaks and such.

 

i think is an artifact, the sound is very similar to a fast mouse clicking, like a injector but lot louder, later i will go for a small ride and see if i can record something better

 

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

New video, i know there is a lot of wind noise, but in some segment the sound is clear, like near the wheel or the last 8 seconds