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79k30dually · 10-15-2011, 09:56 AM

With the engine off, depress the pedal 5-6 times. Hold the pedal, start the engine, the pedal should drop 1-2 inches if the booster is good, Ron

10-15-2011, 09:56 AM	#4
79k30dually Registered User Join Date: Aug 2011 Location: Newark Ohio Posts: 122	Re: How do you test a brake booster? With the engine off, depress the pedal 5-6 times. Hold the pedal, start the engine, the pedal should drop 1-2 inches if the booster is good, Ron