Question about 1984 Ford F 150

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1995 ford 150, battery keeps losing power while running, alternator and battery checked out OK. battery cables and connections replaced still loses power.

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  • beejay6540 Sep 16, 2008

    yes, did put stereo system with subwoofer, but unhooked, not connected to battery so as to rule out. Battery while charged still loses power while running. Could it be connected to the regulator.

  • Gym Nasium Feb 18, 2009

    battery keeps going dead when driving at night with lights, heater, and sometimes stereo(basic)... alternator is charging - but at only 12.46 at best.. drops below 12.0 with accessories on - lights,heat,stereo..seems to charge ok during the day.... when revving motor amp. gauge increases along with..rpm's.... just seems like the charging is to weak to keep up with demand..

  • Rob Cobb
    Rob Cobb May 11, 2010

    Good day;

    Have you put in any extra things into your vehicle? Stereo, big stereo, use it as a work truck, anything that you might have done after you bought the vehicle.





    Cheers

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I had similar problems, changed the voltage regulator and since have had no trouble.

Posted on Sep 26, 2008

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Hi,
Ok then lets start right from the beginning, what to check for:
-- loose battery connection pos and neg
-- loose or broken wires on the alt
-- loose alt belt
-- you said that you had the alt and battery tested? that was a load test?
-- battery could be just no good even if its new, that's why I asked if a load test was done, and the output of the alt is ok?

Try these please let me know then we can go from there.

Cheers

Posted on Sep 16, 2008

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