Question about 2001 Ford F-250 Super Duty

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Good battery but no power at all not even headlights

No power at all not even head lights but battery and all connections are good on battery

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Hi Tito, I'm glad to help!

When you loose all power even on any kind of vehicle then you have lost either the power side of the system OR the ground side of the system and both need to be check as well as all fuses on the system. FIRST: Take a test light and hook it to the ground on the battery post and probe the power wire at the battery NOTE: If you have 2 batteries you need to check one at a time. See if you have power at the battery. THEN see if you have power at the starter THEN see if you have power at the alternator. If you have no power then you'll need to probe the power wire all the way back to the battery to find out where you've lost power. Do the same with the ground wires unless you found a loss on the power side. NOTE: On the ground side you'll need to hook your test light too the positive battery post. Hope this helps and have an awesome day Tito.

Posted on Aug 19, 2014


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