Detroit Diesel Troubleshooting Diagrams

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Series 60 Defective Starter

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To determine if a defective starter is causing no start, perform the following steps: ‪

1. Place the red lead of a voltmeter to the solenoid “BAT” or terminal;

Series 60 Defective Starter 1024x574 Series 60 Defective Starter

1. Red Lead ‪
2. Starter Ground ‪
3. Solenoid Terminal ‪
4. Black Lead ‪
5. Voltmeter ‪

2. Place the black voltmeter lead to the starter ground terminal;
3. Engage the starter switch.
4. View the voltage reading on the meter.

1. If the voltage is less than specification (refer to OEM guidelines) while cranking the engine, starter replacement is necessary;
2. If the voltage is to specification (refer to OEM guidelines) while attempting to crank the engine, check for internal damage;

Starter Replacement

Perform the following steps for starter replacement: ‪

1. Replace the starter;
2. Verify replacement of starter;

Written by sam

February 2nd, 2012 at 3:20 am

Posted in Engine not to Start

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Series 60 Defective Starter

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1. Place the red lead of a voltmeter to the solenoid “BAT” terminal.

2. Place the black voltmeter lead to the starter ground terminal,

3. Engage the starter switch.

4. View the voltage reading on the meter.

  1. If the voltage is less than specification while cranking the engine, replacement is necessary;
  2. If the voltage is to specification while cranking the engine, check the cranking speed;

Starter Replacement

Perform the following steps for starter replacement: ‪

  1. Replace the starter;
  2. Verify replacement of starter;
Test Engine with Replaced Starter

Perform the following steps to determine if the replaced starter resolved starting difficulty: ‪

Attempt to start and run the engine.

1. If the engine starts and runs, no further troubleshooting is required. Shut down the engine.
2. If the engine fails to start and run, check the cranking speed;

Series 60 Defective Starter 1024x574 Series 60 Defective Starter

1. Black Voltmeter Lead ‪ 4. Harness Tube ‪
2. Starter Ground Terminal Lug ‪ 5. Volt Ohm Meter ‪
3. Red Voltmeter Lead ‪

Written by sam

November 16th, 2011 at 3:30 am

Posted in Starting Difficulty

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