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Old 09-12-2012, 03:38 PM   #1178
Some Guy From NY
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Join Date: Jul 2012
Fan#: 101517
Location: Brooklyn, NY
What I Drive: 2012 SGM Focus SEL sedan DCT

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See that AC line coming up from the bottom center of the photo? I added that black insulation on it (still has the sticker on the left side of the insulation). I covered the AC line and made sure it was thick enough to touch the bottom of the coolant reservoir to keep the reservoir from moving. I have done more driving and only hear the rattle when I hit a severe bump/pothole. It is 85-90% quieter now since I have added that insulation.

I circled it:

Some people have folded a sponge and stuffed it between that AC line and the bottom of the reservoir. I suggest doing this first as a test to see if it stops your rattling.
Mods: Drop in K&N filter, Steeda RSB, MS3 RMM, Remote start, Llumar tint, Ti engine cover, Husky floor mats, OEM splash guards
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