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Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23821
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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Ford f2
, 2001 f250 5.4l gas charge light on ,on dash

Customer Question

Customer: ford f2
JA: Thanks. Can you give me any more details about your issue?
Customer: 2001 f250 5.4l gas charge light on ,on dash alternator replaced no change in condition. yellow batt wire at backof alternator stays at battery voltage after starting
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Submitted: 1 year ago.
Category: Ford
Expert:  Ron replied 1 year ago.

Hello and thank you for your question,

Before you do anything else I need you to take your 12 volt test light and or a volt meter and at the alternator with the engine running back probe the Black/orange wire as well as the yellow/white wire and the smaller green /red wire and tell me what the voltage readings are, all three should have battery voltage. Check this for me and post back with the results and we can work from there.