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I having a problem with the car dying out. I replaced the alternator and the battery but after i did that, i started the car, then i unhooked the positive wire from the battery and the car died. The alternator i bought was "refurbished"what else could it

(1990 Oldsmobile Cutlass Ciera)
in Winter Haven, FL on January 15, 2016
Could there be a relay, fuse or something else it might be?
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on January 15, 2016
That test is is inconclusive! ... Instead of *risking more electrical problems* by unhooking the battery cable while engine is on... Use a volt meter and measure the alternator output at the battery cables. .. It's very possible the alternator is junk - if it is....the volt meter will prove it !!
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on January 15, 2016
it could be lots of things now!YOU DO NOT UNHOOK THE BATTERY CABLE ON A RUNNING VEHICLE,PERIOD! maybe fried several could do that old school thing in 1975, but NOT NOW.start checking fuses,all of them with a test light.
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