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Re: 04 E350 p0620,p0623 DIESEL ALT CODES
Posted to Technical Discussion Forum on 5/7/2012 6 Replies

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Louis............... That is the way a Ford PCM controlled alternator works.

My MOD wiring diagrams shows a 2 wire regulator on a 2004 e350. It also has a alternator theory section which talks abou... Login to read more.

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