C13, C15, and C18 Engines Troubleshooting – Crankcase Fumes Disposal Tube Has Oil Draining

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

Table 1
Troubleshooting Test Steps Values Results
1. Check Valve

The check valve at the bottom of the oil drain tube has failed.

A. Replace check valve (5) .

Check valve Result: The check valve was replaced.

Verify the repair.

Complete the procedure in the order in which the steps are listed.

If the procedure did not correct the issue, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).


Posted in C18

Leave a Reply

Your email address will not be published.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