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Mike S.
Mike S., ASE Certified Technician
Category: Ford
Satisfied Customers: 7230
Experience:  ASE Certified Master Technician
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My 05 f0rd 500 is only putting out 11.3 volts to the

Customer Question

my 05 f0rd 500 is only putting out 11.3 volts to the battery. While driving the dash goes blank then comes back on and get all sorts of messages. I have seen that others have had the same problem. Do you have the solution?
Submitted: 1 year ago.
Category: Ford
Expert:  Mike S. replied 1 year ago.

It sound to me as though it has a loose connection. You obviously have a voltmeter. What is the voltage at the back of the alternator at the battery B+ post with the engine reved up to about at least 1,500 rpm?

Expert:  Mike S. replied 1 year ago.

If it's over 14 volts there, replace the think wire going from the alternator to the battery.

Expert:  Mike S. replied 1 year ago.

Here is the wiring diagram, make a note, there is a fusible link in that wire, just incase it does need to be replaced the new wire will have to have that fusible link.

Expert:  Mike S. replied 1 year ago.

What was the voltage at the back of the alternator and battery?