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Hi everyone!
its a 2005 lxl variant, MT sedan.
The noise appeared after a coil change service. Maybe a bad service?
It happens a little while (3 to 5 minutes) after engine starts. Appears even on neutral, so maybe it's not clutch related.
It goes higher and faster as accelerate.
Any tips are welcome!
Here's a video of the issue;

 
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I can't tell what sound you're talking about from the video. Can you describe it?

 
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Sure! its like theres something slapping there. Around 0:23s the sound is higher. I will record another video without the noise to compare.

 
Rep Power: 134

What service was performed? How many coils were changed? What brand coil was replaced? Possible faulty or incompatible coil?

 
Rep Power: 367

the tut-tut-tut sound?
Also, you sure a coil job was done? they do not look like clean new parts...

in the past, i had a small flap-flap-flap sound.

found out it was the tip of a zip-tie getting in the way of the radiator fan...

 
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All 4 coil change service
Brand - Fabrini/NHK, its a very well known brand here.
I dont think so, i suspect of a bad service in some way.

 
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Sure! I was there all the time, brand new parts, my car is a "bit" dirty, sorry for that.
Thats an amazing tip! I will check the fan, and post a new video!

 
Rep Power: 367

not the fan.
it could be anything stuck around the belts area, or similar.
heck, who knows if a tree branch got stuck there