Hello all!

I recently got a new battery for my focus and then realized the alternator was not charging the battery. So I bought a new one and got it put in and it still didnt charge. I have tried 2 other not so new batteries and a few different alternators still to no avail. has anyone got any ideas as to what the problem could be?

Simply put, if it's probably not the battery or alternator since you've replaced them with new ones (though sometimes new doesn't equal good) and even tried some others, then what's left? The belt that drives the alternator, and the wiring (including any fuses, relays, control circuits, etc), so check those!

Perhaps it would be helpful to describe precisely how you're determining that it is not performing correctly. (E.g. what measurement are you taking).

The money you've thrown at the new components probably could have been better spent paying someone to diagnose it properly.

Assuming you have checked the battery voltage with the engine running, remove and clean the chassis earths.

1 hour ago, rd457 said:

Simply put, if it's probably not the battery or alternator since you've replaced them with new ones (though sometimes new doesn't equal good) and even tried some others, then what's left? The belt that drives the alternator, and the wiring (including any fuses, relays, control circuits, etc), so check those!

Perhaps it would be helpful to describe precisely how you're determining that it is not performing correctly. (E.g. what measurement are you taking).

The money you've thrown at the new components probably could have been better spent paying someone to diagnose it properly.

Thank you mate ill get it sorted