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KW V3 coilover install: clank (pop) noise when I lift up/down my car?

yoru12

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Apr 2, 2026
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Location
CA
Car(s)
26 Supra MT
Just installed the KW V3 coilover, but I am getting weird clank? (a pop) sound from the front struts, most likely the springs.
It just happened when I put my car is on the ground, and when I lift up the car it makes that noise. Only once up and down.

My springs should be pre-loaded properly as well, just tighten the collar by hands until spring does not move.
I did torque everything in a spec, except the front lower control arm bolts near frame side. It has enough torque but I could not have a good access to that bolt. (I have attached the image of which bolt)

After searching a bit, it says I am suppose to tighten front lower control arm while on the ride height etc. I tried this, but even after trying to tighten it up, my lower control arm sags down like 3 inches or so.

Any help is appreciated.

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SOLVED: It was the top hat screw that was not bolted all the way.

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