Brake Booster

["Sean Howley" <tsuyoi@xxxx>]

I was wanting to test how my brake booster was operating, but I am unsure as to what values to test it. What I mean is, what should the gauged value of the vacuum be with the engine running? If I pulled a vacuum on the booster (I have a tool to do this), what should I bring it to and how long should I expect to see it maintain that value? What is the proper method to test the check valve operation?

If someone could let me know, I would really appreciate it.

Thanks,

Sean Howley
VIN#2345


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