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James, Ford Technician
Category: Ford
Satisfied Customers: 3626
Experience:  Ford Senior Master Tech, Ford gas and diesel expert, ASE Certified
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I have a 2004 Expedition. My check battery chime will just

Customer Question

I have a 2004 Expedition. My check battery chime will just start going off. I hit reset and it stops. Got a new battery. Still does it. The check tire indicator comes on and off.
Submitted: 1 year ago.
Category: Ford
Expert:  James replied 1 year ago.
Hello and thanks for choosing just answer. The battery light is going to be caused by a failing charging system. The alternator is probably original and beginning to fail. It happens when the brushes wear out or the diodes begins to fail. You will want to have the alternator tested and replace it if it's failing.
As for the tire pressure light. If it flashes this usually means a sensor has failed or isn't being seen. If the light comes on and stays solid then the problem is going to be a low tire on one or more tires.
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