Howdy, ...read the previous thread about the battery light...I had the same scenario, battery light came on, truck ('94 F-150) died. I swapped out the battery (it was old), and had a shop change the alternator (it was dying). But I still have the battery light on the dash lit. The new alternator is working correctly.

Any other ideas as to what the problem could be? I would appreciate any suggestions.

Thanks!

Richard

 

Howdy and welcome Rich!

Have you verified the voltage at the battery with a meter while the engine is running? Also take a looky at all four ground wire connections on the main ground cable. Common to have that corrode.

Adrianspeeder

 

What spots other that the battery and starter should I look for my battery light has been on for a year or more I have had the truck looked at twice. The only way I can get the light off is to pull the black plug on the alltornator and it goes out, I thought that when you pull the plug the battery light should be on and it goes out?

 

Virtually all Fords use this circuit for the alternator...



...but some have the W/Bk circuit internal.



So if you unplug the large connector, the light will go out because it's then on an open circuit.

 

What should I do if my battery and starter connects are clean to try and get the battery light off, I have had it tested twice in a year and the garage says its fine. The light came on when I was driving down a back road to fast and came over a hill and hit a washout the light flashed on and off and back on permantly for over a year?

 

Had WHAT tested? The alternator (voltage regulator) controls the dash light, so THAT's what needs testing.

 

when the truck is running the altanator is charging but the battery light in the dash is on.

 

Then don't worry about the light.