ASE T2 Domain 7: Starting and Charging System Diagnosis and Repair Welcome to your ASE T2 Domain 7: Starting and Charging System Diagnosis and Repair 1. ASE T2: Starting and Charging System Diagnosis and Repair A diesel engine starter motor operates slowly and the battery is fully charged. The MOST likely cause for this condition is: A. An under-rated battery for the application. B. High resistance in the starter circuit. C. A defective starter solenoid. D. Worn brushes in the starter motor. None 2. ASE T2: Starting and Charging System Diagnosis and Repair During the inspection of a diesel engine starting system, a technician finds that the starter does not disengage after the engine has started. The cause of this issue is MOST likely: A. A sticking pinion gear on the starter motor shaft. B. A faulty ignition switch not returning to the 'run' position. C. A defective starter relay. D. A seized overrunning clutch in the starter. None 3. ASE T2: Starting and Charging System Diagnosis and Repair A diesel engine cranks excessively before starting. Technician A says that a possible cause is low cranking speed due to a weak battery. Technician B says that high resistance in the starting circuit could be the cause. Who is correct? A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B None 4. ASE T2: Starting and Charging System Diagnosis and Repair A diesel engine's alternator is not charging the battery at idle but begins to charge as engine RPM increases. The MOST likely cause is: A. A failing voltage regulator. B. Loose drive belt tension. C. A worn alternator pulley. D. Open diodes in the alternator. None 5. ASE T2: Starting and Charging System Diagnosis and Repair After replacing the alternator on a diesel engine, the battery warning light remains illuminated. The NEXT step should be to: A. Replace the battery. B. Check the alternator drive belt tension and condition. C. Verify the wiring connections on the alternator and the battery warning light circuit. D. Test the battery voltage with the engine running. None 6. ASE T2: Starting and Charging System Diagnosis and Repair A technician measures the voltage drop on the negative side of the starting circuit of a diesel engine and finds it to be higher than manufacturer's specification. This could indicate: A. A failing starter motor. B. Poor ground connections. C. A shorted battery cell. D. An overcharging alternator. None 7. ASE T2: Starting and Charging System Diagnosis and Repair While diagnosing a diesel engine that does not crank, a technician notices that the starter solenoid clicks but the starter motor does not turn. The MOST likely cause is: A. A faulty starter switch. B. An open circuit in the starter motor. C. A defective starter solenoid. D. Insufficient battery voltage. None 8. ASE T2: Starting and Charging System Diagnosis and Repair A diesel engine equipped with an automatic belt tensioner for the alternator belt is undercharging at all engine speeds. Before replacing the alternator, what should be inspected FIRST? A. Battery state of charge. B. Belt tensioner for proper operation. C. Alternator output at various RPMs. D. Electrical connections at the alternator. None 9. ASE T2: Starting and Charging System Diagnosis and Repair During a starter draw test on a diesel engine, the amperage draw is significantly above the manufacturer's specification. The MOST probable cause is: A. A high resistance in the starter circuit. B. A binding starter drive gear. C. An undercharged battery. D. Excessive friction within the starter motor itself. None 10. ASE T2: Starting and Charging System Diagnosis and Repair A technician is troubleshooting a no-crank condition on a diesel engine. The starter relay is heard clicking when the key is turned to the start position. The NEXT step should be to: A. Replace the starter motor. B. Check for voltage at the starter motor solenoid. C. Replace the starter relay. D. Replace the ignition switch. None 1 out of 10 Time is Up! Time's up
