Knocking noise after hitting a bump abruptly.

After getting new UCA and suspension installed I can hear a knock when I hit bumps too fast. Other than that nothing else any ideas?

 

Check the torque on your lower control arm bolts. It can be a lot of things but this seems to be a common offender and I've had this exact problem myself.

 

don't drive over bumps

 

I was thinking LCA as well. I didn’t see any other scuffs or marks anywhere else. Driving and turning I don’t notice the knock at all. Thanks!

 

Oh would it be too loose? Too tight?

 

Probably a dumb question, but is it coming from the steering rack? There is a bushing in the rag joint that’s basically made of wet toilet paper and falls apart really easy. Mine always made a little noise, but I hit a hard bump and it came out completely. Now it knocks pretty loudly.