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ENGINE PROBLEMS
  Bleedng Diesels
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FORDS CHARGING PROBLEMS

BATTERY GOING FLAT AND BATTERY WARNING LIGHT ON?

Battery warning light

If the battery is going flat and the battery warning light is on, you may have a broken wire. Later Fords are fitted with ‘smart charge’ this is when the ECU (cars computer) can control the charging output of the alternator.
Check for bad connection on ‘smart charging’ alternator plug or broken wires (see picture), this may need replacement plug and sub loom, this is listed for the Ford Connect part no.1421293, but can be modified for other models.
Tip, if you remove the plug and the wiring is the fault, the alternator will use its internal regulator and start working again (battery light might still be on), see charging.

Ford Alternator Wiring Loom

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