ever since i have had my 99 K1500 obs the brake pedal has felt soft but after i replaced everything except the abs module the brakes are even worse and barley stop the truck. i had it to the dealer to to have the abs system bleed and they said everything bled fine but they barley work the guy at the dealer said he had no clue what would cause the problem. i am wondering could a bad abs module cause it to feel like their is air in the system?