2000 Cadillac Dts Replaced Battery Alternator Still Loses Voltage While Driving C

2000 CADILLAC DEVILLE DTS
134,000 MILES
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BRANDON_CAROLLO
  • MEMBER
  • 1 POST
I replaced battery and alternator and battery still loses voltage while driving car could it be a bad crank sensor? What could cause the draining battery please help, what is next?
Nov 5, 2011 at 1:05 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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.
Nov 5, 2011 at 2:16 AM
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