Solenoid Test

Disconnect starter field coil lead from terminal "C". Connect battery to starter solenoid. See Fig 1, STEP 1. Clutch pinion gear should move outward. If clutch pinion gear does not move outward, replace starter solenoid.
If gear moves outward, disconnect jumper lead from terminal "C". See Fig 1, STEP 2. Clutch pinion gear should remain in outward position. If clutch pinion gear DOES NOT remain in outward position, replace starter solenoid.
If clutch pinion gear remains in outward position, disconnect jumper lead from starter housing. See Fig 1, STEP 3. Clutch pinion gear should move inward. If clutch pinion gear does not move inward, replace starter solenoid.

Fig 1: Bench Testing Starter