[b-Sol]

I'm usually really good at sniffing these things out but I cannot pin point this issue.
Sometimes when braking I feel and hear a thump or knock. It moves. Sometimes I feel it center rear like its coming through the floor, then I'll hear and feel it at the front left or right corner.
I notice that its more pronouced when moving from reverse to drive then braking.

Thanks

 

[b-Sol]

yes? no?

 

[glamdring70]

Have someone help determine what wheel is making the noise. Get them to stand on the curb and drive past and hit the brakes. Could be a warped rotor or drum. Maybe a pad or shoe is shot and the metal is grabbing on a rivit? Something like a return spring broken in the rear, or a stuck part. Maybe pad slap?

 

[PasadenaCanyon]

Check your caliper bolts, did you recently change your break pads? The same thing happened to me about a month ago, it turned out my brake caliper bolts where coming loose and my calipers were shifting when I was on the brakes causing a knocking and thumping noise

 

[slammed98gmc]

i just fixed a noise on my truck that was bothering me. It moved around and happened when brake, when taking off or on bumps. It was the body mounts making noise. I pulled them apart and put some silicone grease in them and it is quiet as a church mouse now.

 

[ssgjurista]

Check your body mounts.

 

[b-Sol]

Awesome! I'm checking the mounts today!
Thanks for the help...

 

[rastok]

Awesome! I'm checking the mounts today!
Thanks for the help...

.. what was your problem... mine's doing the same thing..

 

[rastok]

bump

 

[b-Sol]

It was my left stabalizer link bar. It wasnt tightened down completely or came loose. The knock was it shifting and tapping when my suspenions leaned forward or backward during braking.

 

[Canuck355]

I've also had a knocking sound mostly when making right turns or braking and believe I found the problem. The plastic shield in the front driver side was hitting the stabilizer bar. In the picture below the red outlines the corner I cut off and the yellow shows where it was rubbing.