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Ford — disconnect the wiring plug connector at the regulator

A Ford service procedure — check it applies to your exact model before use.

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Procedure

  1. The charge indicator lamp should go on with the
  2. If the charge indicator bulb does not go on, check the
  3. If the bulb is not burned out, an open circuit exists
  4. Connect the negative lead of the voltmeter to the
  5. Record the battery voltage reading shown on the
  6. Connect the red lead of a tachometer to the
  7. With the engine running, turn on all the electrical
  8. Increase the engine speed to 2000 rpm. The voltmeter
  9. If the voltmeter reading indicates over voltage {more

Tools required

  • ignition key turned to the ON position.

Source: manual:194-216 Ford LSG-423 2.3L Industrial Engine Service manual (May1986).pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.