ol things for your car-it cleans your carpets, advances your engine timing, and even helps stop your Trans Am thanks to the Pontiac brake booster. Vacuum is always created by a running engine, and a large rubber hose transfers that vacuum over to the Pontiac brake booster. So what happens when the Pontiac brake booster receives that vacuum, and what does it do with it? Inside the Pontiac brake booster, which looks like a large-diameter flat can up against the firewall of your vehicle, there's a large piece of rubber called a diaphragm. Vacuum pulls on one side of the diaphragm inside the Pontiac brake booster, and your foot presses on the other side when you hit the brakes. The pulling action of the vacuum inside the Pontiac brake booster takes your foot pedal pressure and amplifies it, pressing much harder on the master cylinder. Thus you're able to stop your 5,000-pound Bonneville with just a small amount of pedal pressure. The Pontiac brake booster has been in service in a variety of iterations for more than 50 years now, so it's no newcomer to the scene. Of course, the Pontiac brake booster has evolved in that time to accommodate new innovations such as disc brakes in the 1960s and ABS brakes in the 1990s. That also means that there are a lot of old, worn out Pontiac brake booster units out there in need of replacement. If your brake pedal suddenly becomes way too firm and your car becomes difficult to stop, you probably need a new Pontiac brake booster. We can help. We stock a new or remanufactured Pontiac brake booster for most models at a guaranteed low discount price, so you can't go wrong. Just order your new Pontiac brake booster from us and we'll take it from there.