Question about 1996 Cadillac Eldorado
New battery new alternator still does not charge
Hey Jeff. Never assume that "new" alternator is good, but lets assume it is.The actuator wire that goes into the field of the alternator HAS to be hot with the key in run position. (both wires will be). If not, it wont charge. If those two are hot with the key on, the alternator is bad.
Posted on Nov 16, 2014
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Posted on Jan 02, 2017
A sitting battery has about 12.5 volts. A running engine should be around 14 volts. If less than 13 alternator is not working.
In my area Autozone, Kragen & Pep Boys will check alternator for free.
If alternator is working and battery still ends up dead then something is draining battery when engine off. This takes more advanced troubleshooting.
Remove all fuses. Put ammeter in series with battery add fuses one at a time individually until ammeter shows a circuit drawing more than one amp. (clocks and computers will use very little power)
Posted on Mar 12, 2010
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