I am out of town until tomorrow. Problem started today with a slooow crank. Starts fine after running a while, but drains back down in a couple hours. Load tested batteries at O'reilly, said they are fine. Tested alternator, said it has low amperage and bad diode.
My question is, can a bad diode cause a drain on the batteries, but still charge when driving? If so, Can I just unhook the alternator tonight to keep from draining batteries overnight, and hook it back up for my drive home in and morning. I'll fix it all when I get home just don't have the means to change an alternator right now.
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