2000 F250 SD 5.4 Battery light keeps coming on alt is charging...Help

Asked by May 07, 2013 at 08:19 AM about the 2000 Ford F-250 Super Duty Lariat 4WD Extended Cab SB

Question type: Maintenance & Repair

ANYONE have similar prob or know of a fix

2 Answers

26,315

How many volts is the alt. charging?

1 out of 1 people think this is helpful.
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The Alternator may charge but it still may have a problem, bad diode, internal voltage regulator feedback, winding resistance, brush contacts bad, flying short or open circuit, just a few things that can happen. Have the system checked completely, some parts stores have an alternator tester in the store. DO NOT remove a battery cable while the engine is running, it may damage the electronics and computer systems, then your headed for a major repair bill.

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