Combustion gas leak detection strategy

A remote diagnostic system for a work machine, the work machine including an engine and a controller, the remote diagnostic system comprising:

• a display module including at least one display device and at least one user input device;
• and
• an equipment care advisor module, including a processor, electronically coupled to the controller, the controller being electronically coupled to a coolant temperature sensor and a coolant pressure sensor, the equipment care advisor module being configured to:
• monitor a coolant fluid temperature measured by the coolant temperature sensor during a start-up period,
• monitor a coolant fluid pressure measured by the coolant pressure sensor during the start-up period,
• calculate an expected coolant fluid pressure based on the monitored coolant fluid temperature and the monitored coolant fluid pressure, and
• generate a failure code indicating a combustion gas leak when the monitored coolant fluid pressure exceeds the expected coolant fluid pressure.

A method of detecting a combustion gas leak in an engine of a work machine, the work machine including an engine and a coolant pump, the method comprising:

• starting the engine, the engine having a start-up period corresponding to a predetermined period of time;
• monitoring, for the duration of the start-up period, a coolant fluid temperature;
• monitoring, for the duration of the start-up period, a coolant fluid pressure;
• calculating an expected coolant fluid pressure based on the monitored coolant fluid temperature and the monitored coolant fluid pressure;
• comparing the monitored coolant fluid pressure to the expected coolant fluid pressure;
• and
• generating a failure code when the monitored coolant fluid pressure exceeds the expected coolant fluid pressure, the failure code indicating combustion gas created in the engine is leaking out of the engine.