Why does my truck "lunge" at stop lights?

I have replaced all brakes and bled all "old" fluid out for new. I did this because vehicle sat for years in my garage. Fluid was "dirty" and now clear. ABS pump runs so unplugged fuse. Need to get module checked out/repaired. Found a great place that has 24 hour turn around on module for 79 bucks. Have used them with avalanche and worked great and fast.