DD15 Troubleshooting – Section 6.8 Defective Turbocharger

Section 6.8
Defective Turbocharger

Check as follows:‪

1. Remove the exhaust pipe from the turbine outlet and remove the air intake pipe from the compressor inlet.
2. Visually inspect the turbine and compressor wheels for missing blades or blade damage.
3. Inspect the turbine and compressor wheels for heavy deposits of dirt, coke or carbon.
4. Using a flashlight, check the wheels and housings for signs of rubbing.
5. Rotate the turbine wheel to check for freedom of movement.
6. Replace the turbocharger if there is any visible damage. Refer to "4.2 Turbocharger" in the “Air Intake System” chapter of the EPA07 DD15 Workshop Manual (DDC-SVC-MAN-0002).
   1. Remove defective turbocharger from the engine.
   2. Tag removed turbocharger for remanufacture.
   3. Install a new turbocharger to the engine.

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

7. Start the engine.
8. Run the engine speed to full load.
9. Visually inspect the exhaust for excessive smoke.
   1. If the engine exhaust emission appears normal, no further troubleshooting is required. Shut down the engine.
   2. If the engine exhaust emission is excessive, shut down the engine. Call Detroit Diesel Customer Support Center (313-592-5800).