Review on ACDelco 178 0791 Original Equipment Booster by Evan Zurlo

My wife's Buick Enclave has been making a spongy noise when the brake pedal is depressed for several years. It officially drove us both insane. I ordered this brake booster and master cylinder. First I decided to replace the brake booster and was able to move the master cylinder to the side without loosening anything on it. I removed your brake booster and immediately knew where the noise was coming from. I was able to fit a new brake booster and after testing the brake pedal was completely silent. That solved the problem for us, I would recommend replacing the brake booster before the master cylinder.