2000 Cadillac DTS Repair Question
Replaced battery and alternator and battery still loses voltage while driving car could it be a bad crank sensor draining battery please help
You need to check if the voltage from the alt is getting to the battery. Check that first using a volt meter. With the engine off, the battery will produce around 12 volts. When you start it, you should see 14+v at the battery. If you don't check the fuseable link between the battery and alt. If it is bad, it won't charge the battery.
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