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Old 11-08-2019, 05:46 PM   #1
Scooby Newbie
Member#: 441196
Join Date: Feb 2016
Location: so cal
2016 sti

Default Rattle when accelerating in 2nd and 3rd gear 2016 sti

So Iíve had this issue for a while now but it started as a sort of metallic squeak when accelerating in second and third for about a split second. Itís a sound I can only hear when I have my window down and Iím driving next to a curb or wall.

I recently had a dealer dent my oil filter and leaked most of my oil out while on a drive. They took it back put a new filter and oil and ran it and said everythingís fine. They also tried to deny they had anything to do with it but thatís a different story.

Well today Iím accelerating at about 2800 rpm in third and it sounds like someoneís shaking a can of marbles under my car. I have no performance issues and the car doesnít rattle at idle or any of the other gears. Itís not a rhythmic noise. Seems to go away at higher rpms. Any ideas what this could be?
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Old 11-08-2019, 05:50 PM   #2
blue sedan
Scooby Specialist
Member#: 311622
Join Date: Feb 2012
Chapter/Region: Tri-State
Location: Pa.
2020 WRX
Lapis Blue


Check exhaust heat shields
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Old 11-12-2019, 06:49 PM   #3
Scooby Newbie
Member#: 256637
Join Date: Sep 2010
Chapter/Region: Tri-State
Location: phillipsburg, NJ
2011 impreza hatch


header heat shields most likely, it happened on my 2011. I took some exhaust header wrap and put it around the loose parts of the heat shield to stop the rattle.
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Old 11-13-2019, 06:46 PM   #4
NASIOC Supporter
Member#: 123843
Join Date: Aug 2006
Chapter/Region: NESIC
Location: Connecticut
Let LED's light your way!


Perhaps the techs at the dealership went for a joy-ride and bottomed-out the car a bit more than just puncturing the oil-filter?

Maybe take the car to an independent shop that is familiar with this type of vehicle and have it inspected for damage?

Also, how much oil 'leaked' out?

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