Cooling Parts: Warning Signs to Watch
A stable cooling system protects the engine under load. Rising temperature, coolant loss and changes in fan behavior often appear before a complete failure.
Common warning signs
- Temperature increases during normal operation
- Coolant residue around the radiator, hoses or water pump
- Bearing noise or movement at the fan and pulley
- Damaged fins or restricted airflow through the radiator
Stop and inspect persistent overheating promptly. Continuing to operate can turn a serviceable cooling-system fault into major engine damage.