DD15 Troubleshooting

Section 5.1 Obstruction or Damage to Breather System

Section 5.1
Obstruction or Damage to Breather System

Check as follows:‪

warning

PERSONAL INJURY

To avoid injury before starting and running the engine, ensure the vehicle is parked on a level surface, parking brake is set, and the wheels are blocked.‪

  1. Start and run the engine.
  2. Perform a crankcase pressure test using J-48540–1 from the J-48540 kit. Refer to "5.1.1 Crankcase Pressure Test" .
  3. Check the engine crankcase pressure.
    1. If the engine crankcase pressure is less than 2.5 in. H2 O, no further troubleshooting is required. Shut down the engine.
    2. If the engine crankcase pressure is greater than 2.5 in. H2 O, check the air compressor; refer to "5.2 Defective Air Compressor" .

Section 5.1.1
Crankcase Pressure Test

Check the engine crankcase pressure as follows:‪

caution

To avoid injury before starting and running the engine, ensure the vehicle is parked on a level surface, parking brake is set, and the wheels are blocked.‪

warning

ENGINE EXHAUST

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

  1. Start the engine.
  2. Run the engine and bring the engine coolant temperature to normal operating range, 88-96°C(190-205°F).
  3. Install J-48540–1 from the J-48540 kit on to the oil fill opening. Attach the gauge from kit J-48540, calibrated to read pressure in inches of H2 O, on to the adaptor.
  4. Run the vehicle to full load and rated speed. Use either chassis dynamometer or a trailer have the truck at full load.
  5. Measure and record crankcase pressure.
  6. Shut down the engine.
  7. Remove the adaptor from the port.


EPA07 DD15 Troubleshooting Guide - DDC-SVC-MAN-0029
Generated on 10-13-2008

Leave a Reply

Your email address will not be published. Required fields are marked *