Vehicle Questions and Answers
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Why is my 2003 Ford Expedition displaying a "Check Charging System" message?
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★ Top Answer
The warning light in your Ford Expedition that says "battery/check charging system" may indicate that your battery is running low and may need to be replaced, or that your alternator is malfunctioning. It's a good idea to visit a car parts store or a mechanic to have your battery's strength tested. Another common reason for charging system problems could be a damaged alternator belt or one that is worn out and slipping. If the alternator is functioning properly but the belt is not spinning at the correct speed, it can lead to a drop in voltage output, causing the system to behave as if the alternator is not working. Although less probable, it could also be an issue with the computer system.
More answers
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I recently installed a brand new alternator, a fresh battery, and a new starter in my 2003 Ford Expedition. However, the "check charging system" light is still on. What steps should I take next to address this issue?
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In the 2003 Ford Expedition, the "check charging system" alert means that the alternator isn't properly charging the battery. This issue could stem from a faulty alternator, a loose belt, a worn-out battery, a loose connection between the alternator and the battery, or other electrical faults.
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