REGULATOR GP-TEMPERATURE 3844305 - Caterpillar

Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
The CCV system 191-2304 Fumes Disposal Filter Gp allows oil carryover into inlet air system of engine in multiple differing G3500H engine installations. The G3500H engines are experiencing multiple issues with the CCV system, including oil carryover, pulling vacuum on the crankcase, and emulsified oil causing early filter clogging. Poor installation, ambient conditions, and system monitoring lead to the issues being experienced.The crankcase ventilation system is overly sensitive to installation. Ambient conditions and improper installation practices can lead to oil carryover and improper system functionality.Solution
Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.
Review updated Special Instructions, M0088278 for proper Crankcase Ventilation System installation instructions for G3500H engines.