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BRZ First-Gen (2012+) -- General Topics All discussions about the first-gen Subaru BRZ coupe |
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06-08-2022, 02:53 AM | #1 |
BRZ N02
Join Date: Mar 2013
Drives: 2013 A/T Subaru BRZ Limited, SWP
Location: Oregon
Posts: 82
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2013 BRZ Evap self test knocking ticking clicking
After normal driving, 2013 MY BRZ runs a fuel evap leak test approximately 5 hours after shutting the engine off. It's common to hear a soft humming/buzzing noise from the rear of the vehicle under these conditions.
Recently my vehicle has been spicing it up with some percussion. Just wondering if anyone could identify a clear problem from sound alone. Useful notes: - Just under 100k miles - No power/drive train modifications except for Perrin catback exhaust - Only notice these noises towards the end of the test (video below captures a few seconds after the noises started, but I had been listening for a few minutes before recording) - No issues filling up - No noticeable fuel vapor leak in my garage or otherwise - No CEL/MIL - No codes when scanning (besides solar circuit due to low light) - I have been trying to catch codes for this sound for a while but it doesn't seem to be tripping any malfunction indicators - Engine seems to be running just fine All of the above tells me it's probably just a noisy solenoid somewhere in the evap system. Not too sure about the groaning noise though... Anyway, if anyone has an idea of what's going on I'd appreciate your insights.
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Last edited by Baldoak; 06-08-2022 at 03:20 AM. Reason: Clarity |
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