Anyone??????

I recently had the rotors turned and replaced the front brake pads on my 1999 Silverado 1500 4x4.
Now when I apply the brakes , there is pulsing from left to right and a "knocking' sound. It sounds like the ABS is trying(or is) activating.
No problem before this service . Only wanted to take the "junk" out of the pedal and steering. Have found this is a good thing to do on any GM around 40k miles.
HELP!!!! This is driving me nuts.....I can't take this thing apart many more times!!!!!:confused:

Granpa, do you think that maybe you need to bleed those brakes? I can't think of anything else that might have changed as a result of this work...but then again, I am not a pro.

Hope this helps!

-AW-

I finally ended up getting frustrated with it and took it to the dealer.
Appears the NAPA store that cut the rotors , did it wrong and the run out was way way out of spec.
After 653$ and new rotors ,pads and other stuff, it is working fine.
Thanks for your input though. I had done that also!!