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Hold-In Windings

  1. Connect an ammeter, voltmeter, carbon pile and battery into starter circuit. See Fig 1. Using carbon pile, decrease battery voltage to 10 volts.
  2. Refer to SOLENOID HOLD-IN WINDING SPECIFICATIONS  table for correct amperage reading. A higher reading indicates windings are shorted or grounded; a lower reading indicates excessive resistance.
Fig 1: Testing Solenoid Hold-In Windings
G90C04787Courtesy of GENERAL MOTORS CORP.