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Re: 99 Astro van Evap code PO442
Posted to Technical Tips Forum on 4/30/2006 1 Reply

Joey,

A tip on volt drop testing switches. Use a GMM or a DSO and graph them as the contacts close. A failing witch will have a dirty turn on and a good switch will not. This is a great way to find an intermitent like this in your bay. Here is what I am talk... Login to read more.

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