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Re: 2002 astro van 4.3 x code p1637 Whats the deal?
Posted to Technical Discussion Forum on 3/13/2007 2 Replies

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With KOEO and the alternator connector unplugged, what is the voltage on the L terminal? What is it backprobed and plugged in with the engine running? What is the charge rate? Will the alternator char... Login to read more.

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