Reasons to inspect a hose
- Coolant residue or active wetness appears at a hose, clamp, or connection.
- A hose is visibly damaged, swollen, rubbed through, or collapsed under certain conditions.
Find the exact weak point
The leak may come from the hose, its connection, or a damaged housing nearby. Abnormal system pressure or contamination can also affect hose condition. A new hose will not correct an unresolved pressure or overheating problem, and a connection leak does not always require replacing every hose in the system.
What replacement involves
The correct hose assembly and sealing parts are identified. Routing and clearance are checked to prevent contact with moving or hot components. The system is refilled with the specified coolant and air is removed as required. A final inspection looks for leakage at both ends and reviews normal operating behavior.
What to do before service
Describe whether the leak appears hot, cold, or immediately after shutdown. If a hose bursts or the temperature rises, stop safely and arrange assistance. Do not remove a hot cap or try to handle pressurized coolant connections; escaping fluid can cause serious burns.