[nilde]

New alternator--what do I do next?

 

[sdtsdt]

Voltage Regulator ... Also, get a multi-meter or voltmemter to get an idea of how much the charging system is putting out ... Don't rule out a new battery, especally if your has some age on it ...

 

[JOEL_TX]

Are the battery cables tight on all ends?Make sure you have good contact on both battery posts without any space between them.

if they are good then battery/voltage regulator check like sdtsdt suggest.

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Joel
T/C#980 1968 SS396 CHEVELLE


If at first you don't succeed, skydiving is not for you.....

 

[nilde]

As a test, can one disconnect the pos. battery cable while the car is running to see if the problem is fixed?

 

[OrrieG]

Pretty obvious but drove me nuts once: drive belt tension and loose or missing alt. bracket bolts. Since you replaced the alt you probably have them right. I spent a cold wet night once in Pendleton because the lower bolt had backed out enough to allow the alt belt to go slack (no idiot light). It finally fell out about the time I ran out of battery.

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OrrieG
64 Malibu HT Survivor

 

[John_Muha]

Don't pull the cable off to test the charging system. Use a meter as was suggested above.

 

[chev-hell]

just check the voltage at the battery, once with the car off, and once with it running, should be 12 or so before and 13+ while running. no need to take stuff apart yet.

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1970 SS396 AKA 454/4spd
My Chev-Hell Page
GOLD Member #783
Metroplex Muscle
Ft.Worth, Tx
(OO=ss=OO)