I have a 1998 Ford Expedition. Recently the battery light has been coming on, bit when I accelerate it goes out. What dis?

Asked by Mar 04, 2014 at 09:37 AM about the 1998 Ford Expedition 4 Dr Eddie Bauer 4WD SUV

Question type: Maintenance & Repair

2 Answers

235

I'm not an electrical expert but will throw you a thought and what I would look into first, based upon your description, it appears that the alternator may be weakening and is losing charging power at idle - might be the reason for the battery light on then. Guess I would look at the alternator performance first, then the battery itself.. Good luck!

5,965

Check for a loose alternator belt and if it is tightened properly, you might have a bad diode in the alternator. Cheaper to buy a rebuilt than to actually rebuild yours.

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