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Treat active hot coolant loss as a burn and overheating hazard, then inspect the cooled system to separate external leakage, cap/sealing concerns, trapped air, and possible internal loss.
intermediateTreat overheating as a stop-and-assess condition, then separate coolant loss, airflow, circulation, control, and combustion concerns.
professional recommendedUse controlled pressure on a cool system to investigate leaks without opening a hot, pressurized cooling circuit.
Test-first procedureCompare operating pattern, temperature data, and airflow evidence without applying a universal gauge, infrared, or fan rule.
Test-first procedureTransfers coolant heat to airflow. External blockage, internal restriction, leakage, and fan behavior matter.
General knowledgeSupports coolant circulation. Leaks, drive condition, flow, and engine design affect diagnosis.
General knowledgeRegulates coolant flow by temperature. Slow warm-up and overheating require different evidence.
General knowledgeAI guidance is separate from verified IAR sources.
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