It sounds more like your cutout switch is the culprit here.
Per
Skickat från min iPhone
> 7 juni 2019 kl. 14:47 skrev R. Lindsay <050.rpl@gmail.com>:
>
> For the past few weeks I have been fighting a parasitic draw on my BJ8. It
> was running about .48 amps and would drain my battery in a day or so. I was
> told by a mechanic that a diode in my alternator must have blown therefore
> causing the draw. He also mentioned that my ground wires in the boot were
> loose which he tightened. I brought the car home, turned off the power in the
> boot and 2 days later the battery was dead.
>
> So, hereâ??s what Iâ??ve done. I jumped the battery and started the car and
> ran it for 10 minutes. I disconnected the charger and tested the battery -
> 12.48 volts. I then removed the cutoff switch and bolted the grounding wires
> together. I tested for a draw and got a zero reading. That was last night. I
> went out this morning (12 hours later) and the battery reads 12.33 volts.
>
> My questions are 1. Is .15 volts a reasonable drop in voltage for a sitting
> car in 90 degree heat and 2. Can a diode in an alternator work sometimes and
> not at others. If itâ??s either â??good or badâ?? all the time, I guess I
> need to presume the alternator is not the source of the draw. If a .15 volt
> loss over 12 hours is reasonable then removing the cut out switch in
> conjunction with presuming the alternator is good (as it works fine now)
> solved my problem.
>
> What does the wisdom of this great resource think?
>
> Price Lindsay
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