I have a 199 GMC Sierra 4 Wheel Drive. When I am on the brake and go below 5 miles per hour. The pedal vibrates, like when the ABS kicks in. I have checked it on 3 Computers already. While driving and sitting. Nothing shows up, All sensors are in sync. I pulled the fuse for now. I know you can clean the sensors. I only have front ones. What and how do they clean the sensors?
I was told to get the whole ABS unit under the chassis from a junk yard and replace it?
The only thing I did was change all my brake lines to ones that are rust resistant. A month or so after this . The ABS acted up.
I do not think it could be from not bleeding fully? The pedal is hard not soft at all. I bled it using the computer. I did it at least 10 times. I am going to bleed them manually just to try it. I am at a lost for solutions.
I appreciate any suggestions.
Thank You Doug