2002 Saturn SL2 Repair Question
Saturn SL2 Battery Problem
Use an inexpensive digital voltmeter to measure the battery voltage. It must be 12.6 volts. If you find closer to 12.2 volts, it is good but discharged. If it's around 11 volts, it has a shorted cell and must be replaced.
Charge the battery if necessary, then once the engine is running, measure the battery voltage again. It must be between 13.75 and 14.75 volts. If it is low, suspect the generator. Simply saying something is good won't cut it. I want to see numbers.
Also look in the under-hood fuse box for a large bolted-in fuse and for a smaller red positive battery cable bolted to it. Be sure all of those are clean and tight.
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