Brake Foundation Components problems of the 1999 GMC Savana

Consumer stated the brake light on the instrument panel would not go off and the van had a very hard brake pedal like there was no power boost, consumer was informed that the problem was an equalizer, however when it was installed it did not resolve the problem, then they discovered it was the switch on the brake pedal that was bad or needed to be adjusted, consumer was informed that the hard brake pedal was normal for GMC's, consumer stated while driving he experienced hard braking and the wheels locked up, consumer stated there was no abs control even though vehicle is suppose to have it, consumer belives he only has front wheel braking.