Previous owner was rear ended in the car, but apparently it wasn't bad. They used the same rear bumper, I know cause there is a part of the paint that is a little cloudy but hardly noticeable. When I first got the car, it wasn't there. It appeared one day and is more noticeable at this point.
Hey OP, I think I'm just starting to hear this on my 2012 civic si with relatively the same miles (55k). Though I've only heard it going reverse (same place rear passenger side). It does sound like a odd low hum noise. I suspected it to be exhaust vibration or something, like something finally moved and the perfect RPM/vibration causes it. If it were a wheel bearing issues, when lifted the wheel will have play (wheel bearing diagnostic search). I've had this problem on a different car and I don't think this one has it yet.
OP, can you back up for me and see if you can hear that noise. Hopefully you can hear it over the spool.
Last edited by goldgorgon; 04-19-2017 at 09:30 AM.
Check your brake pads. I started to have this last weeekend, about 60,000 miles on the odometer. I hadn't replaced the brake pads yet (ever). Anyway I just got done taking the pads off. Kind of a PITA job because of the Michigan corrosion. The driver-side rear outer pad was worn down to bare metal. The other 3 rear pads were extremely low, but no metal showing yet, and the indicators wouldn't have engaged yet.
Yesterday when I spoke to the dealership to get a quote, the guy mentioned that they try to service brakes around 30k, and I was well-beyond that.
2013 Civic Si Coupe (Rallye Red)
Progress 24mm Rear sway bar
Moog greasable endlinks
SPC adjustable rear camber arms
Curt Trailer Hitch
Hasport 62a Rear & Top Motor Mounts
Clutch-delay valve delete
K&N engine air filter and cabin air filter
Weighted shift knob
MTEC Shifter Springs
Vit Tune (in progress)
Viper 4806v Remote Start
Hard-wired Dash cam
PIAA headlights and yellow fogs
I forgot to ask: did you ever jack up the car and rotate each wheel by hand before doing anything? That's a potentially good way to isolate a noise coming from a corner.
'Three pedals or bust!'
'Come for the cars. Stay for the people.'
'Part of having the right to free speech is knowing when to not exercise it.'
‘Say what you mean, mean what you say, but don’t say it mean.’
9th Gen Civic POP Crew #6 Hidden Content
9th Gen Civic LI Crew#1 Hidden Content