Rattle/buzzing letting go off throttle between 2-3k RPM

[jimlloyd40]

The fire rated paper towels.

 

[Proxima2]

Alright, I need to confirm with everyone this is the infamous fuel line rattle before I do anything to it. Just broke 1k miles in my car, replaced oil since car had been on the lot for a year (508 approved, 0w20). Today took the car for my first spirited drive. Immediately after a couple of pulls (nothing hard, not WOT, not redlining), started hearing this rattle/buzzing noise around 2-3k RPM when letting go off throttle. The noise immediately disappears if I step on the gas, and starts immediately when letting go off throttle if its between those RPM ranges. It's loudest closer to 2.5k RPM, lowest between 2.6k - 3k RPM. The noise 100% comes from the passenger side.

Here's the video of it, please ignore my hand on the video:

(You can really hear it in the first 30 seconds, if it goes quiet is because I stepped on the accelerator. After the 30 seconds I put the RPM a little higher so I could hear the difference, but the camera did not pick it up).

I had the same problem. I was able to solve this by getting a can of expanding form insulation from the hardware store. Get down on the passenger side near the door and squirt this stuff into the tunnel housing. I really loaded it up to the point of the insulation dribbling out of the holes. It worked like a champ.

 

[Ghost GTI]

I had the same problem. I was able to solve this by getting a can of expanding form insulation from the hardware store. Get down on the passenger side near the door and squirt this stuff into the tunnel housing. I really loaded it up to the point of the insulation dribbling out of the holes. It worked like a champ.

This seems like what the TSB is right? Remember what brand you purchased?

 

[Proxima2]

I am pretty sure it was this stuff.
https://www.homedepot.com/p/GREAT-S...lant-with-Quick-Stop-Straw-99053937/206977048

 

[Ghost GTI]

Took me a while to get to it, but finally had a chance to use this suggested by @Proxima2 . Used a bit in both of the front holes in the underbody where I could touch the fuel lines. Waited for the 8 hours cure time. Took it for a drive and rattle is now gone.

 

[Proxima2]

Took me a while to get to it, but finally had a chance to use this suggested by @Proxima2 . Used a bit in both of the front holes in the underbody where I could touch the fuel lines. Waited for the 8 hours cure time. Took it for a drive and rattle is now gone.

Very cool. Glad it worked for you.

 

[2slowvw]

Everything on my car rattles and vibrates. I'm so used to it at this point that it doesn't bother me, but im sure passengers think my car is falling apart.