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Re: More P0171/174 fun: '03 Expedition 4.6L
Posted to Technical Theory Forum on 5/24/2007 34 Replies

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Hi Allen lets see if I can put into terms for you. I don't rely on freeze frame I just record it and then if anything see what comes back. Humans are occular meaning we can't help it in a general way ... Login to read more.

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