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No-Load Test

  1. Remove starter. Connect ammeter in series between starter and fully charged 12-volt battery. See Fig 1 .
  2. Connect remote starter or jumper wire to battery and ST (start) terminal of solenoid. DO NOT  crank starter longer than 5 seconds. On VIN J, current draw should be 42.5 amps at 11 volts. On VIN 2, current draw should be 60 amps at 11 volts. Ensure pinion gear extends quickly and completely.
  3. Starter should spin smoothly. If starter does not operate as described, replace starter.
Fig 1: Performing Starter No-Load Test
G90J02254Courtesy of GENERAL MOTORS CORP.
NOTE: Perform solenoid tests with starter assembled and field lead from starter disconnected at the solenoid.
CAUTION: DO NOT  engage starter solenoid for more than 5 seconds during testing, or damage to coil winding may result.
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