DD15 Troubleshooting – Section 2.4 Internal Engine Damage

Section 2.4
Internal Engine Damage

To determine if internal engine damage is causing no start condition, perform the following steps: ‪

1. Install a 3/4 in. breaker bar or ratchet and attempt to bar the engine over by hand.
2. Determine severity of internal engine damage.
   1. If the engine rotates freely, inspect the starter. Refer to "2.3 Defective Starter" .
   2. If the engine binds and will not rotate freely, inspect for internal engine damage
3. Repair or replace damaged components if found.

   ENGINE EXHAUST ‪
   To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic.‪

4. To determine if the new components resolved no start condition, 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, call the Detroit Diesel Customer Support Center at 313–592–5800.