Question about 1997 Dodge Dakota

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Black box on top of the alternator

What is the black box on top of the alternator? My battery started running down while traveling recently. Lights began to dim, radio went off, but truck kept running. Volt-meter (amp meter?) went to almost zero. I stopped, found the alternator, and tapped on the black box on top of it. Power was immediately restored, volt-meter went to just over 14. Has happened twice more since then.

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Posted on Jan 02, 2017

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SOURCE: I have an early 2004 dodge ram 2500 w/ 5.9. every

Sounds like it.

It's really the regulator board, and you may be able to get just a board. Check at you local auto parts house.

Posted on Dec 10, 2009

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SOURCE: have 91 dodge dakota lights

Could be a number of things. Least expensive to more. Check the battery terminals and clean them. Have the alternator tested at an auto parts store. Replace the ECM. For some reason Chrysler executives in their infinite wisdom integrated the voltage regulator is inside of it. Under the hood on the passenger's fender. I hope I've helped. If so please rate my assistance and leave a comment to help others in a similar situation. Thank you and happy holidays. P.S. My money is on the ECM but the first two are wishful thinking.

Posted on Dec 17, 2010

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SOURCE: lights and everything electrical goes

mikena959, It sounds like you need to have your alternator checked. One of the diodes could be working intermittently causing the problems you discribed here. You don't state here how long this problem lasts when it does happen. If it is not long then yes the battery will stayed charged. Good luck with this.

Posted on May 12, 2011

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SOURCE: 1986 dodge daytona voltage problem

look at middle of fire wall under windshild in engine compartment
My 1984 has the regulator there,my son's truck, 1987 D or B 350 is set up the same way .
I have a 1987 b250 van however where the regulator is built into the computer .
All use an altenator with an EXTERNAL Regulator

Posted on Oct 02, 2011

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