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Old 03-18-2002, 01:02 AM
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1983 3000 SD Battery

I have an 83 300 SD and the battery seems to be dead. Once I turned the car off the fan kept going and slowly died. When I tried jumping the car the fan turned on again but the car still did not start. Does this seem like the battery needs to be replaced?

Also, is the battery easy to remove?

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Old 03-18-2002, 10:28 AM
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This is the procedure:
1) disconnect the positive terminal from the battery.
2) put a 2 amp charger on the battery for 24 hours or put a 10 amp charger on it for 5 hours.
3) let the battery sit for 12 hours after charging making sure to leave the positive terminal off.
4) get a digital volt meter and check the voltage on the battery - if it is less than 12.65 volts - replace the battery.
5) if it is 10.5-11.5 volts - you probably have a shorted or dead cell - replace the battery.
6) Do not run the car with a bad battery as it can put undue strain on the alternator.
7) If the battery results in #4 above is 12.65 volts or higher -(which I doubt) - reconnect the positive terminal and start the car. The voltage on the battery with car running should be 13.5-14.7 volts. If it is not - then you have a bad alternator or brush pack in the alternator.
Hope this takes the mystery out for you.
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