A hole in the diaphragm allows the booster to draw air into the ... problem is a vacuum leak, you might hear a whistling ...

If leaks develop in hoses or engine parts downstream from the air intake, that means additional ... throttle body evaporative emissions system, power brake booster, and several other places ...

NHTSA says no injuries or accidents have been reported in connection with the CX-9's braking system, but the Agency has released this statement: "When brake fluid leaks into the vacuum booster the ...

The Problem: A fluid leak from the brake master cylinder into the brake booster could reduce brake effectiveness, increasing the risk of a crash. The leaky master cylinder only affects brakes to ...