How do you measure a brake booster vacuum?
GM Genuine Parts 55556698 Brake Vacuum Hose
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Open Apr 09, 2025 - 06:05 AM
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Apr 09, 2025 - 06:05 AM
To measure a brake booster vacuum, use a vacuum gauge connected to the vacuum hose or the booster itself. Start the engine and let it idle, then check the gauge reading; a typical healthy brake booster should show a vacuum of 15-20 inches of mercury (inHg). If the reading is lower, it may indicate a leak or other issue with the booster or vacuum supply.
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GM Genuine Parts 55556698 Brake Vacuum Hose
A brake vacuum hose is a critical part of any auto detailing system. It allows you to control the flow of air and water to your brakes, and provides protection against brake fluid spills. This product is designed specifically for GM vehicles.
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