2003 Ford Crown Victoria No Charge

FORD CROWN VICTORIA
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NORMAN R MCCAW
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  • 1 POST
Vehicle is 2003 ford crown victoria 4.6 engine 90,000 miles altenator has been replaced twice with ford replacement altenator.Thought the first replacement altenator was deffective.when vehicle is cranked altenator doesn't charge. voltage-amp meter shows only battery voltage.When accelerator is snapped open sharply,will start charging.Battery light comes on after engine accelerator is snapped open. :?:
May 12, 2006 at 5:35 PM
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LOSONE
  • ✓Experienced Mechanic
  • 1,616 POSTS
Remove the ground from the battery and clean it shiny. Remove and clean the ground from the battery to the engine, the engine to the fire wall and from the battery to the frame.

Do the same with the positive side. Check the wire connector to the alternator, make sure it isn't burnt. They burn so often that you can buy them on a fix it rack at a parts store. good luck
May 13, 2006 at 6:40 AM
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Suggested Repair

Clean the battery ground and the grounds from the battery to the engine, engine to firewall, and battery to frame until shiny. Clean the positive cable connections the same way. Inspect the alternator wire connector for burning and replace it if damaged.

Conversation Summary

The owner of a 2003 Ford Crown Victoria reports that the alternator does not charge after starting until the accelerator is snapped open, even after two Ford replacement alternators. Only battery voltage shows until then, and the battery light comes on after the snap. The expert advises cleaning the battery, engine, firewall, and frame grounds plus the positive connections, and checking the alternator connector for heat damage.

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