Question about 1984 Nissan Pickup

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I just put in a new battery and alternator and my

I just put in a new battery and alternator on my 1984 nissan pickup and my battery light is still coming on and staying on while the truck is running...any ideas as to why that might be?

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First step is to check the voltage of the charging system. Should be around 12 volts when engine not running , 14 volts when engine is running.
If these test out OK then your warning light is the problem. Could also be a poor connection or broken wire at the alternator. Alternator must be grounded to work , but if it wasn't , the light would probably not come on.

Posted on Apr 08, 2010

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