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Cranking Test

NOTE: Ensure engine is at normal operating temperature. High viscosity oil, extreme cold temperatures, or tight engine will increase amperage draw.
  1. Using a battery load tester, connect positive and negative leads to battery. Connect inductive ammeter pick-up to positive battery cable. Disable ignition and fuel systems. See DISABLING/ENABLING IGNITION & FUEL SYSTEMS.
  2. Ensure all lights and accessories are off. Place A/T in Park position or M/T in Neutral position. Apply parking brake. Crank engine and observe voltmeter reading. If voltage reads more than 9.6 volts and cranking amperage draw is more than specified amps, proceed to CIRCUIT RESISTANCE TESTS. See STARTER SPECIFICATIONS. If voltage reads 12.4 volts or more and amperage reads 0-10 amps, proceed to SOLENOID CIRCUIT TEST.
    CAUTION: During cranking, DO NOT draw battery voltage down to less than 9.6 volts. Use care not to overheat starter.
  3. If starter cranks engine freely, but problem with starter is still suspected, engage starter several times while observing volt/ammeter readings. A starter that has a problem should fail when performing this procedure.
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