Starter Load Test

1974 Ford Pickup F100, 2D Pickup Extra Cab, Automatic TransSECTION Starter Load Test

Make test connections as shown in illustration.

NOTE: Make sure no current is flowing through ammeter and position rheostat at maximum counterclockwise position.

Crank engine with ignition off (disconnect and ground coil high tension lead and connect jumper from battery terminal of starter relay to ignition switch terminal of relay). Note voltmeter reading. Stop cranking engine, reduce resistance of carbon pile until voltmeter indicates same reading as when cranking. Ammeter now indicates current draw under load.

Fig 1: STARTER LOAD TEST CONNECTIONS
G09323992Courtesy of FORD MOTOR CO.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.