1994 Ford Explorer Battery Light On

FORD EXPLORER
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PROPHECYDARK
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  • 1 POST
I have a 1994 Ford Explorer 2d Eddie Bauer Edition, 4.0 v6. Recently the battery light has been coming on in my car. So i replaced the battery and the light still came on. I had the car tested and the said the alternator went bad. So i bought a new alternator and i am still having the battery light on and my battery is draining completely when i drive it. I don't know what else to do. any thought.
Jul 8, 2006 at 6:04 AM
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TAURUSWHEEL
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I'm not familiar with trucks, is the regulator integral to the alternator?? How about the plugs for the connections, are they in good shape, some alts come with new pieces.. Ford was having a problem with fires associated with some of the plugs, this was quite a few years ago, I bought aftermarket alts, they all came with new plugs to splice into the wiring... make sure your plugs are nice and tight to the alt
Jul 8, 2006 at 10:31 AM
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MIKEYBDMAN
  • ✓Experienced Mechanic
  • 623 POSTS
I would probably check the ground cable from the battery to the engine ground. These tend to corrode a lot, and sometimes inside the plastic covering making it hard to see.
You also have 2 fusable links between the altenator and the starter relay, but I am doubting that would be the problem.
I have seen new altenators not work properly, so maybe it is still the problem.
Jul 8, 2006 at 12:04 PM

Suggested Repair

Check the battery-to-engine ground cable for corrosion, including under the insulation, and confirm the alternator connector plugs are tight and in good condition. Retest charging output, since a new alternator can still be faulty; fusible links were considered less likely.

Conversation Summary

A 1994 Ford Explorer owner replaced the battery and then the alternator after the battery light stayed on, but the light remains on and the battery still drains while driving. Experts suggested checking the battery-to-engine ground for hidden corrosion, verifying tight alternator connections, and considering that the replacement alternator may still be bad.

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