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Hi Im helping out a buddy trace out his charging system problem. he has a 1988 ford F450 diesel flatbed tow truck. he already put in a new Alt. regulator, batterys. still does not charge. im looking to see if anyone can help out with a wiring diagram for the charging system.
thanks in advance
thanks JC but thiss truck is a 88 it does not have any big fuse like that. all the fuseable links though were checked. you wouldnt happen to know what the 4 pins on the voltage regulator go to.