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02 2002 svt focus

  1. Need help figuring out what this does

    Focus SVT
    So I've owned this car for a few years and when I bought it it ran like crap because it had a bunch of vaccum leaks so I fixed all of them but one. I partially fixed the problem but I would like to fix it correctly. So when I got it the guy had a small hose connecting a metal vacuum hose to this...
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