hi gary,
the past several times i experienced a battery drain is when the alternator grounding wire is loose or corroded and split.
for months, i couldn't find the electrical drain, not charging 12V, and i replaced the battery. i had checked the grounding wire to make sure it wasn't broken off. in fact, only later after my checking more thoroughly this past month, the alt grounding bolt to the chassis (near the right motor mount) was loose. after tightening, it charges well.
regards,
byron golden
86 245
92 245
94 940
|