Fast knocking when on highway.

[bmxjordanbmx]

When I am on the highway and I give it gas and go faster than 100-110 I get this fast knocking noise coming from the drivers side. I can feel the vibration under me feet, but that doesn't mean it's there. I really want to know what it is so it is fixed ASAP, any help would be much appreciated! Below is a link to a video of the sound, listen closely and you'll hear it for the first few seconds. It's a fast loud knocking.

https://youtu.be/4O3mhXQ0a3s

Sent from my LG-H831 using Tapatalk

[credential23]

lift ur car and check underneath. Maybe theres something stuck on your wheels or something is hitting your struts. Maybe something is loose.

[bmxjordanbmx]

Did that today and changed my wheels over to my brand new summers.

Sent from my LG-H831 using Tapatalk

[S.F.W.]

Did that today and changed my wheels over to my brand new summers.

Sent from my LG-H831 using Tapatalk

Possibly a wheel out of balance..

[bmxjordanbmx]

There seems to be some play in the CV axel

Sent from my LG-H831 using Tapatalk

[bmxjordanbmx]

I had my wheels balanced before I put them on today and I also had an alignment

Sent from my LG-H831 using Tapatalk

[jeff7670]

Ya I would think it is a CV axle

[bmxjordanbmx]

Ya I would think it is a CV axle

There is some slight up and down play in the CV and I can feel vibration by my feet so it would make sense

Sent from my LG-H831 using Tapatalk

[bmxjordanbmx]

So today I was told by my local garage that it is my exhaust causing harmonic vibration. One of my mounts for my exhaust just after the cat did rust off. Opinions?

Sent from my LG-H831 using Tapatalk

[morganc]

You could compensate by buying stiffer aftermarket exhaust bushings, but they're there for a reason. Get the hanger mount welded back on. A little play is normal in CV's, but they tend to make noise all the time when they're going bad, this is also exacerbated by turning.