Obstruction or Damage to Breather System
To determine if an obstructed or damaged breather is causing excessive crankcase pressure, check the crankcase pressure. .
Breather System Resolution
Perform the following steps to determine if the removed breather element resolved the excessive crankcase pressure.
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|