Would cause a brake pedal to get stiff from time to time (like it has a brick behind it), no abs, and abs/brake light to come on all the time on my 05 silverado? I pulled the ABS fuse and the pedal doesn't stiffen up anymore. I have a feeling it is the ABS controller fucking up, but want your opinions/experience before I go blow a huge wad of cash on something that isn't fucking broken.