Squeaking noise coming from rear suspension - 2004 to 2016 Mazda 3 Forum and Mazdaspeed 3 Forums
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post #1 of 5 (permalink) Old 07-22-2016, 02:15 AM Thread Starter
mazda3415
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Squeaking noise coming from rear suspension

So I've been having this problem for awhile, but I'm on BC coilovers and when im just driving and going through some bumps here and there my passenger rear suspension makes a slightly noticeable squeaking sound if I don't have my radio on. It's probably not a big issue since I've been driving on it for a few months now, but anyone know what it could be? I'm guessing its probably the spring on the coils, but I could be wrong. Thanks! I drive a 2011 mazda 3 2.5L.

2011 MZ3 | Corksport catback exhaust with straight pipe | Corksport SRI | Corksport Stubby antenna | 06-07 STI Lip | Bayson R side skirt extensions and rear lip | Rallyarmor Mud Flaps | DDM 6000k HID | BC coils | Genpu Wheels
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post #2 of 5 (permalink) Old 07-26-2016, 02:43 PM
rlhole
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I have the same issue after having Koni str.t and H&R lowering springs installed. I also have random loud "pops" coming from the rear passenger side occasionally when I pull into a driveway or over a bump at an angle at slow speed. I've had the lower rear control arms replaced, as one was bad, and I still have this issue. Could it be the sway bar? I've had that replaced along with moog end links. Maybe the sway bar collars aren't properly greased?

Last edited by rlhole; 07-29-2016 at 02:27 PM. Reason: Updated info
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post #3 of 5 (permalink) Old 08-04-2016, 06:28 AM
brylem
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If the noise only happens on bumps or on uneven ground, rear swaybar is the problem.
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post #4 of 5 (permalink) Old 10-20-2016, 07:48 PM
mazda3mando
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If you haven't solved the issue i think i know what your problem might be. I have the corksport adjustable shocks on my car with their lowering springs and i have a similar issue. I replaced the rear sway bar endlinks which didn't solve the issue. So i took another look and after ruling out there was nothing loose i realized that the rubber boots of the shocks in the back were getting caught when they were going over bumps. It was making a popping noise. The only real solutions would be to zip tie the boot down, although i dont recommend this as i dont know if your rubber boot can extent that much or you could just replace the rear shocks.

2012NON SKYACTIVEMAZDA 3 2.0 L
MODS: MAGNAFLOW CBE, CS INTERIOR LED'S, CS EYELIDS, ENKIE EKM3'S WRAPPED IN Hankook Evo2 V12 Tires, Corksport Lowering Springs, Corksport Adjustable Shocks, Racing Beat Rear Sway Bar, Eibach Rear Camber Arms, Stoptech Slotted Rotors, Stainless Steel Brakelines, Hawk HPS Pads, Whiteline Rear Sway Bar Endlinks

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post #5 of 5 (permalink) Old 11-16-2016, 04:53 PM
kms1990
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2 of my 3 mazdas have done this and both times it was a bad swaybar bracket bushing. causes the swaybar to move slightly and hit other things and make noise


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