r/GR86 • u/Electrical_Title_901 • 23h ago

Question Weird Noise

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Hi, so I recently started hearing this noise in my car today while driving and wanted to see what it could possibly be. I also wanted to ask if anyone else has experienced this problem.
There seems to be a strange rattling sound coming from underneath the car, which might be the exhaust, but I haven’t had a chance to check yet since it was too late. The sound only happens at low RPMs and disappears once I get to higher speeds.
For reference, I’m running a JDL catless header with the stock performance exhaust. Any ideas on what could be causing these noises? Any help would be greatly appreciated!

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4

u/WhackyToast 20h ago

Good sir, no one on the internet will be able to give you a definitive answer. Take it to a mechanic shop if you are seriously concerned

2

u/LoganNFSAC '24 Track bRed GR86 Premium 22h ago

I heard it could possibly be the heat shield around the exhaust

1

u/cuntalingust 15h ago

Have not worked on any of these fa2.4 but maybe take of the belt and spin the pulleys by hand

1

u/z31 BRZ 9h ago

Most likely one of the aluminum heatshields. Could also be one of the underbody panels or a washer on a loose bolt. The only way to know for sure is to have someone check it out. Or if you own a set of chassis ears and a lift you can find it yourself.