O que você queria saber deste item? Tenho uma máquina que não está fazendo o vácuo, o motor funciona, as mangueiras estão normais, sai ar pela mangueira mas não faz vácuo. Como faço para testar o relê, pois é a única peça que não testei.(English version:What you wanted to know this item? I have a machine that is not doing the vacuum, the engine runs, the hoses are normal, air exits the vacuum hose but it does not. How do I test the relay as it is the only piece that I have not tested.)

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