It may seem like everything on Mitsubishi cars and trucks is high-tech-and they may want you to think that-but the truth is that many components, like the Mitsubishi brake booster, are just good old-fashioned mechanical parts. In fact, the Mitsubishi brake booster even operates off the lowest-tech power source on your entire car: Engine vacuum! Before you slap a 'for sale' sign in your Eclipse, keep in mind that the Mitsubishi brake booster is designed just like pretty much every other power brake unit out there. That's because the Mitsubishi brake booster utilizes a design that works well. By routing engine vacuum into one side of a sealed chamber, the Mitsubishi brake booster can drastically amplify your foot pedal pressure without using up electricity or gasoline in the process. Of course, the engine has to be running for the Mitsubishi brake booster to work correctly, but your engine will generally be running any time you need the brakes, right? If you answered 'not always,' then you're correct, and your Mitsubishi brake booster has a nifty little feature built in that protects you in situations where the engine has either stalled or is not running. It's called a check valve, and it provides a reserve of vacuum inside the Mitsubishi brake booster equivalent to two or three full-assist stops. That way, if your distributor rockets itself through your hood you still have enough reserve inside the Mitsubishi brake booster to bring you to a stop. If your Mitsubishi brake booster is shot, though, no amount of reserve is going to help. You need a new Mitsubishi brake booster and you need it before you take your car back on the road again. Just jump online or call our toll free number and order a brand new Mitsubishi brake booster at as much as half off retail prices. We have your Mitsubishi brake booster on the shelf too, so you're not going to wait to get your car stopping like new again.