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Booster humming?

Discussion in 'The Garage' started by AkMudr, Mar 3, 2005.

  1. AkMudr

    AkMudr 1/2 ton status

    Dec 30, 2004
    Likes Received:
    Today I had to get on the brakes pretty good. As I came to a stop it sounded like the booster was humming and quit when I let off the brake pedal. My guess is the booster having some possible lack of vacuum and needing more vacuum but becuase I was at such a low rpm it wasnt getting it..but has anyone else ran into this? Should this be a sign of pre-booster failure?


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