Re: Battery draw! Electrical help needed.
If the regulator checks out ok, then you might have a bad diode in your alternator. A simple check of each diodes front to back resistance will identify which diode. Using a DVM check the resistance then reverse the leads. You should get very low resistance and reversing the leads should give a much higher resistance. If the resistance is about the same then the diode is bad and could be leaking current.
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1970 GMC 2500
700R Trans
RideTech 4 link rear suspension - Air Bagged on all four corners
350 SBC 300hp
Weiand Supercharger
FiTech EFI
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