Voltage regulator

2009 FORD F-150
180,000 MILES • 4.6L • V8 • 4WD • AUTOMATIC
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CHJ
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Alternator went out on truck so I changed it. Voltage regulator not doing what it is supposed to do on new alternator. Had same thing happen on my Nissan and y'all told me to check some fuses. I am wanting to know which fuses I need to check on this one. Thanks
Oct 27, 2018 at 10:22 AM
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CJ MEDEVAC
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I made a screenshot (2 to get it all) of the charging circuit. Click on them below.

Your fuse is labeled at the top.

Many folks overlook or don't realize that there are fusible links in the equation too, so you might see if they might also be the break in your system.

Let us know how it goes.

The Medic
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Oct 28, 2018 at 2:49 PM
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CHJ
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I was talking about fuses in the fusebox under hood and under dash
Oct 28, 2018 at 3:22 PM
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CHJ
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Where are fuses c d & e?
Oct 28, 2018 at 3:24 PM
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CJ MEDEVAC
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Fuse 29 is in the smart junction box (rear kick panel)

The fusible links are on the wires they are labeled on

Fusible links are wires themselves, they just burn into when overloaded.

Look for bubbly insulation, wire burned into, or a wire that the insulation stretches out like a rubber band. If you replace one, get one with the same load values.

The Medic
Oct 28, 2018 at 4:40 PM