Help!! 02 Trailblazer making thuding noise underneath

[chrislynn]

Please help I have a 02 Trailblazer making a loud thuding noise from underneath. I have changed both front and rear rotors and brake pads. I have also changed the front right calliber. Noise is still there anyone have any ideas??

[BigBlue77]

When is the noise present? Is it over bumps, while braking, or while turning? The Trailblazers have a few things that go bump for various reasons, just need to know when it is doing it before we can be of much help.

[chrislynn]

The noise is all the time. the slower you drive the slower the noise. The faster you drive the faster the noise.

[maxwedge]

Almost impossible to diagnose noises from our desks, someone needs to road test this to actually hear the problem, wheel bearings are one possibility. A bad tire another. If it started after work was done, focus on that area.