rattle left rear side - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Martijn · 04-19-2022, 10:01 AM

Dear All,

We have bought a 2012 GT86 automatic just a couple of weeks ago. We love the car and is a well fitting addition to our Camry and 2004 MR2.
At higher speeds (100kmh / 60MPH, +) a rattling sounds occurs. It does not sound mechanical but more random. The sounds seems to come from the rear left side and seems to become louder with changing driving direction (up the road or down the road) and or stronger with higher wind speeds. I have checked in several gears and this does not affect the sound. I have checked the underside of the car and could not find any loose heat deflectors or something similar. The only thing I could find being a bit wobbly is the piece of plastic trim (part of the inside of the rear wheel arches) sticking out in front of the rear tire. (door side) I think it is a kind of water or whatever deflector.
I could not find any screws to tighten this. Now my questions:
Does this sound familiar to you?
Could this be our noise?
How to tighten or fix the rattle?

Many thanks in advance for your thought tips and tricks and regards from the Netherlands!

S_Yogurt · 04-19-2022, 05:28 PM

I had a rattle that was driving me insane, turns out my taillight housings weren't bolted tight.

I had my rear bumper repainted and the bolts loosened themselves since they were just hand tight. Probably isn't it but worth checking, since mine seemed sort of random and was worse at higher speeds, and was distinctly in a rear corner.

Tcoat · 04-19-2022, 08:51 PM

https://www.ft86club.com/forums/showthread.php?t=42065

Martijn · 04-21-2022, 04:09 PM

Quote:

Originally Posted by S_Yogurt

I had a rattle that was driving me insane, turns out my taillight housings weren't bolted tight.

I had my rear bumper repainted and the bolts loosened themselves since they were just hand tight. Probably isn't it but worth checking, since mine seemed sort of random and was worse at higher speeds, and was distinctly in a rear corner.

I will check that, many thanks for the tip.

Martijn · 04-21-2022, 04:11 PM

Quote:

Originally Posted by Tcoat

https://www.ft86club.com/forums/showthread.php?t=42065

Many thanks for the link also worth while checking.

Tcoat · 04-21-2022, 05:02 PM

Quote:

Originally Posted by Martijn

Many thanks for the link also worth while checking.

Yep. It was a very common complaint back in the day

Sasquachulator · 04-22-2022, 12:11 PM

Might be a different kind of rattly noise, but one time i found out my rear seatback wasnt secure properly on one side in the upright position.

Had to drop it down again and really slam it back to secure it on both ends.

tarzan_nojane · 04-22-2022, 03:03 PM

Several years ago my '14 had an annoying "rattle" at higher speeds that was caused by missing fasteners on that deflector piece you described (mine was on the right). One of the holes in the part was actually torn, and I believe I added a larger plastic washer to assist the plastic fastener in securing the deflector to the sheet metal.

04-19-2022, 10:01 AM	#1
Martijn Junior Member Join Date: Apr 2022 Drives: Orange 2012 GT86 automatic Location: Netherlands Posts: 5 Thanks: 0 Thanked 2 Times in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	rattle left rear side Dear All, We have bought a 2012 GT86 automatic just a couple of weeks ago. We love the car and is a well fitting addition to our Camry and 2004 MR2. At higher speeds (100kmh / 60MPH, +) a rattling sounds occurs. It does not sound mechanical but more random. The sounds seems to come from the rear left side and seems to become louder with changing driving direction (up the road or down the road) and or stronger with higher wind speeds. I have checked in several gears and this does not affect the sound. I have checked the underside of the car and could not find any loose heat deflectors or something similar. The only thing I could find being a bit wobbly is the piece of plastic trim (part of the inside of the rear wheel arches) sticking out in front of the rear tire. (door side) I think it is a kind of water or whatever deflector. I could not find any screws to tighten this. Now my questions: Does this sound familiar to you? Could this be our noise? How to tighten or fix the rattle? Many thanks in advance for your thought tips and tricks and regards from the Netherlands!

04-19-2022, 08:51 PM	#3
Tcoat Senior Member Join Date: Jul 2014 Drives: 2020 Hakone Location: London, Ont Posts: 69,841 Thanks: 61,656 Thanked 108,295 Times in 46,456 Posts Mentioned: 2499 Post(s) Tagged: 50 Thread(s)	https://www.ft86club.com/forums/showthread.php?t=42065 __________________ Racecar spelled backwards is Racecar, because Racecar.

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04-19-2022, 05:28 PM	#2
S_Yogurt Member Join Date: Apr 2021 Drives: '13 Scion FR-S, '12 Ford Fiesta Location: Chicago, IL Posts: 13 Thanks: 0 Thanked 26 Times in 10 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I had a rattle that was driving me insane, turns out my taillight housings weren't bolted tight. I had my rear bumper repainted and the bolts loosened themselves since they were just hand tight. Probably isn't it but worth checking, since mine seemed sort of random and was worse at higher speeds, and was distinctly in a rear corner.

04-22-2022, 12:11 PM	#7
Sasquachulator Pavement Grey Join Date: Dec 2011 Drives: 2020 Toyota Camry XSE, 2017 BMW X1 Location: Calgary Posts: 3,116 Thanks: 109 Thanked 2,256 Times in 1,221 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	Might be a different kind of rattly noise, but one time i found out my rear seatback wasnt secure properly on one side in the upright position. Had to drop it down again and really slam it back to secure it on both ends.

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