Q: How much does it cost for the charging system wiring harness? on 2002 Ford Explorer

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My 2002 ford explore 4.0 6 cylinder has had 2 alternators and two batteries in six months time put in i was tpld it needs a charging system wiring harness. I need to know wheres the best place to get one and how much it might cost.
(1) Answer
It is a known problem with this type of charging system. The large 3 wire plug internally gets loose causing a no charge condition. All that is needed is a replacement plug. They are available at any good auto parts store for about $10, or the dealer for $20. It is a good idea to change it ASAP, since there has been reports of electrical fires due to this plug.