Will a Bad Alternator drain my Battery?
I took my car out for a spin yesterday,when i got back i had it sitting for about 3 hours and i went to start it and my battery was dead.So I put another battery in there started it and checked it with a volt meter it was showing about 13.5.So i shut it off disconnected my negitive post off the battery and put my volt meter in line and sure enough i got a drain being its reading 12.7.so i started disconnecting things ECC,pulling fuses ect,,,and when i unpluged my alternator my volts droped to zero so it appears to be draining it..(Seems strange to me i never had that happen.)...I hooked every thing back up and went to pull it in the garage and my fanbelt started squealing big time!
What do you all think is my has alt gone bad ?,,,,thanks jim
89 LX 5spd, TFS,heads,cam