I have a big F250 diesel pick up from 1995.
It has about 225,000 miles on it and still runs great.
i bought 2 new batteries about three years ago. And now i’m having problems starting it.
the batteries are not holding the charge. When the truck is running, everything is normal - it just purrs along.
But even after a long trip, once I shut it off, it won’t start the next day. I either have to “jump” it, or charge the battery with my battery charger.
i’m wondering if it’s the batteries that need to be replaced again (they are still under warranty) - OR - is it the alternator?
Is there a way to distinguish - batteries or alternator?
Thanks a ton!