Probable Cause
Illustration 1 g02211761
(1) Crankcase pressure sensor
(2) Crankcase filter housing
(3) Fumes disposal tube
(4) Oil drain tube
Illustration 2 g02013955
Left side of the engine
(5) Check valve
Recommended Actions
Caterpillar Engines Troubleshooting
Cat Engines Maintenance & Repair Guides
Probable Cause
Illustration 1 g02211761
(1) Crankcase pressure sensor
(2) Crankcase filter housing
(3) Fumes disposal tube
(4) Oil drain tube
Illustration 2 g02013955
Left side of the engine
(5) Check valve
Recommended Actions