2004 ford f150 bad alternator?
30

Asked by Guru9VY81D Apr 13, 2021 at 10:31 PM about the 2004 Ford F-150 FX4 4WD

Question type: Maintenance & Repair

I have a 2004 ford f150 that is draining power from
somewhere, or the battery is not charging all the
way while its running. Bad alternator? Thoughts
please!

2 Answers

F_O_R answered 3 years ago

Check the output of the alternator at the battery while the engine is running. It should be between 13.5 and 14.5 volts.

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OJ answered 3 years ago

If you have a multi-meter, you can also check for a parasitic draw. The net will have how-to videos. Too lengthy to explain here.

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Your Answer:

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