Mouse squeak from rear accelerate/decelerate weight transfer?

Senna-F1

2014 Nismo 11K miles. Short tails, Swift springs, SPC camber arms and toe bolts. Hotchkis swaybars. This didn't happen right after installing any of the above. I am getting a huge amount of squeaking from the swaybars or endlinks, but this is different.

During dive & squat, as in accelerating and decelerating, I get ONE quick SQUEAK from the rear. Loudest in 1st gear, lower volume in 2nd, lower again in 3rd due to I assume less movement and transfer. Dont hear while just driving down the road or going over bumps. I removed my entire trunk contents, panels, tools, foam, tire, sub, and the sound simply got louder, along with the exhaust. So, I'm pretty sure its coming from outside, underneath the car. I've lubed swaybars, torqued swaybar brackets, and all other bolts related to the suspension... endlinks, toe bolts, camber arms and bolts. Have NOT removed and reseated rear springs yet. Again, they've been fine since I installed them a few thousand miles ago. Stock struts, so I never removed those.

Any idea what would only squeak during dive/squat in the rear?

crazy4oldcars

Differential bushings?

Kirk B.

Senna-F1

Hmmm... so soon? Does it ever squeak? I know it can leak.


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crazy4oldcars

I was thinking urethane bushings, sorry. I forgot about the fluid filled ones we have.
You might squirt a bit on the exhaust hanger grommets, since you hit everything else under there.

Kirk B.

Senna-F1

Thanks Kirk. Just got done from removing rear springs, cleaning off rubber boots and spraying white lithium grease where they seat up against the body. Put the suspension under load, TQd the bolts back up, and, nope! Oh, and TQd the little 21 ft lbs nuts holding the rear struts to the frame up top. Exhaust hangers next.


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618 WHP.452 WTQ.4" Python Intake.15 psi.e50.Topgunz SC.SOHO Tune.S1SE.STG 4 Clutch.Motordyne LTH/Test Pipes/Exhaust.485 Pump.1050x

Senna-F1

I need a magnetic microphone I can place under the car and direct towards different pieces until I find what's making the noise.


Yeah! Like this

STEELMAN 97202 Wireless ChassisEAR Diagnostic Device Kit https://www.amazon.com/dp/B00123J79O..._oXGTybJC244VQ


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618 WHP.452 WTQ.4" Python Intake.15 psi.e50.Topgunz SC.SOHO Tune.S1SE.STG 4 Clutch.Motordyne LTH/Test Pipes/Exhaust.485 Pump.1050x

Senna-F1

Kirk! We found it! I didn't lube the hangers but I went to tighten the hangers and there is one bolt used closer to the center of the car for one of the hangers. It was completely lose! Tightened it up and the car refused to mouse squeak even once! Thank you so much for giving me your thoughts and suggestions! That was all it took. Thank you!


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618 WHP.452 WTQ.4" Python Intake.15 psi.e50.Topgunz SC.SOHO Tune.S1SE.STG 4 Clutch.Motordyne LTH/Test Pipes/Exhaust.485 Pump.1050x

crazy4oldcars

Glad you found it. That $#17 gets annoying, lol.

Kirk B.