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The factory vapor canister rattles. Here's how to fix it.
Underneath the rear diffuser of both the sedan and the coupe is a set of emissions components attached to the underside of the spare tire well. You can access these by removing the two nuts and three bolts with a 10mm socket and pop the two plastic retaining tabs with a flathead screwdriver.
The main component anchoring everything down is the vapor canister - which looks like a black plastic box with three hoses connecting to it. The vapor canister is held in place by a single bolt (12mm head) and a rectangular slot that fits loosely on a metal tab coming off the underside of the car. This configuration allows a fair amount of play enabling the canister to rattle and make unnecessary noise.
You can easily eliminate the noise with some foam tape or what I used: 3M mounting squares (essentially the same thing).
Remove the 12mm bolt and place a solid object underneath the vapor canister to support its weight. I unplugged the two sensors, but there is enough slack that this is not necessary.
I placed a single mounting square on the top side of the metal tab attached to the underside of the car. I left the adhesive backing on the exposed side and this combination ended up being perfect for eliminating all wobble in the vapor canister.
Here's a shot of the vapor canister reattached. You can just make out the white mounting square in place now (see small white circle in center of photo).
As an extra precaution, I trimmed some pieces of a mounting square to eliminate the play and rattle in this hose catch - because it was super noisy as well. YMMV.
I don't care who you are, this is MacGyver-quality work right here:
That's it. You're done. Now just reinstall your rear diffuser and cruise your neighborhood revving on anyone within earshot.
Emissions components? Lol can I take it off and not get a check engine light? Wonder how heavy it is?
Originally Posted by G37_4DR
Underneath the rear diffuser of both the sedan and the coupe is a set of emissions components attached to the underside of the spare tire well. You can access these by removing the two nuts and three bolts with a 10mm socket and pop the two plastic retaining tabs with a flathead screwdriver.
The main component anchoring everything down is the vapor canister - which looks like a black plastic box with three hoses connecting to it. The vapor canister is held in place by a single bolt (12mm head) and a rectangular slot that fits loosely on a metal tab coming off the underside of the car. This configuration allows a fair amount of play enabling the canister to rattle and make unnecessary noise.
You can easily eliminate the noise with some foam tape or what I used: 3M mounting squares (essentially the same thing).
Remove the 12mm bolt and place a solid object underneath the vapor canister to support its weight. I unplugged the two sensors, but there is enough slack that this is not necessary.
I placed a single mounting square on the top side of the metal tab attached to the underside of the car. I left the adhesive backing on the exposed side and this combination ended up being perfect for eliminating all wobble in the vapor canister.
Here's a shot of the vapor canister reattached. You can just make out the white mounting square in place now (see small white circle in center of photo).
As an extra precaution, I trimmed some pieces of a mounting square to eliminate the play and rattle in this hose catch - because it was super noisy as well. YMMV.
I don't care who you are, this is MacGyver-quality work right here:
That's it. You're done. Now just reinstall your rear diffuser and cruise your neighborhood revving on anyone within earshot.