If the power steering pump goes out on 99 suburban do you loose brakes also?
No, you do not lose brakes if the power steering pump goes out on a 1999 suburban. The power steering pump is responsible for providing hydraulic pressure to the power steering system, which makes it easier to turn the steering wheel. The brakes are a separate system and do not rely on the power steering pump. If you lose your brakes, it will be for another reason, such as a problem with the brake master cylinder, brake lines, or brake pads.