98 ford contour v6, battery light is on

1998 FORD CONTOUR
150,000 MILES • 6 CYL • 2WD • AUTOMATIC
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KELLEY3180
  • MEMBER
  • 2 POSTS
I have a 98 ford contour v6 with ac. The battery light came on, then drained the battery. I got it going again with a fresh charged battery, took it to the parts store so that they could test the alternator. Test showed it was bad, so I replaced the alternator. But after doing so the light is still on and yes it drains the battery after about 40 mlies of driving.

The alternator is new & the voltage regulator is new(on the alternator), I also replaced the belt.

I was thinking to change the tensioner? Is there anything else that it could be? Any other test I could perform?
Nov 23, 2010 at 7:05 AM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,413 POSTS
Check for battery voltage on the yellow wire in the plug for the regulator. If it is missing, look for a popped 15 amp fuse. Check for full battery voltage on the fat output wire. If it is missing, look for a blown very large fuse bolted into the fuse box under the hood.

caradiodoc
Nov 23, 2010 at 7:10 AM
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KELLEY3180
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WOW, you are awesome. It was just a 15 amp fuse, once replaced the battery light went off. I have never had that happen before. Thanks for your Help.
Nov 25, 2010 at 10:48 AM
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