Question about 2004 Ford F350

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I HAVE A 1995 F350 DIESEL. WE RECENTLYU CHANGED BOTH BATTERIES AND HAD A NEW ALTERNATOR INSTALLED. AFTER ABOUT A MONTH, THE BATTERY LIGHT KEEPS COMING ON WHEN DRIVING AND GOING OFF WHEN STANDING. WHAT COULD ME WRONG NOW?

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First things first check whether the alternator is charging by starting the engine and whilst in neutral gear open the bonnet and remove negative terminal from your battery and leave the positive one in its place . If the vehicle stops then then the alternator is not charging but if it is still on then the alternator is very Ok.

But since the battery light is on as the car is on it means that the alternator has a problem . It is either the brushes are finished or the armature winding is bruised hence causing a short circuit .

Posted on Jul 19, 2011

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