Section 8.1
Obstruction or Damage to Breather System
To determine if an obstructed or damaged breather is causing excessive crankcase pressure, check the crankcase pressure. .
Section 8.1.1
Breather System Resolution
Perform the following steps to determine if the removed breather element resolved the excessive crankcase pressure.
![]() 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. |
- Start and run the engine.
- Perform a crankcase pressure test; refer to "2.1 Crankcase Pressure Test"
.
- If the engine crankcase pressure is less than 0.62 kPa (2.5 in. H2 O), no further troubleshooting is required. Shut down the engine.
- If the engine crankcase pressure is greater than 0.62 kPa (2.5 in. H2 O), check the air compressor; refer to "8.2 Defective Air Compressor" .
EPA07 MBE 4000 DDEC VI Troubleshooting Guide - 6SE568 |
Generated on 10-13-2008 |