Quote:
Originally Posted by tin-man
Hi Rick, The only thing I have in this respect is the picture, attached and a bill stating 12 volt vacuum pump, I have asked the installer what type of system I have and I'm still waiting for a reply. Just so you know I am in China and the Cobra is in Fullerton California getting some corrections made to it after I drove 78 miles and it stopped working. I have a post on that topic. When I hear back I will respond. Cheers, John, AKA, tin-man
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Apparently you have a vacuum pump which supplies sufficent vacuum to a vacuum operated power brake booster.
They make noise, that's normal.