Load Test

NOTE: Conduct this test if the starter motor cranks slowly and also to compare the current to specifications. See STARTER SPECIFICATIONS .

Connect Rotunda Battery and Starter Tester (010-00725), or equivalent. Make sure that current is not flowing through ammeter and heavy-duty carbon pile rheostat portion of circuit (rheostat at maximum counterclockwise position). See Fig 1

Fig 1: Performing Starter Load Test
Courtesy of FORD MOTOR CO.

NOTE: Make sure ignition switch is in OFF position and S-terminal connector has been removed so engine does not start.

Fig 2: Identifying Starter Solenoid Terminals

Courtesy of FORD MOTOR CO.

Place transmission in Neutral or Park. Crank engine with ignition switch OFF and determine exact reading on voltmeter. This test is accomplished by disconnecting push-on connector "S" at starter solenoid and connecting a remote-control starter switch from positive battery terminal to S-terminal of starter solenoid. See Fig 2 .
Stop cranking engine. Reduce resistance of carbon pile until voltmeter indicates same reading as that obtained while starter motor cranked the engine. The ammeter will indicate starter current draw under load. Check this with specified value. See STARTER SPECIFICATIONS .