Why does the van's radiator always boil over?

1 Answers
LondonDella
07/29/25 12:01pm
The reasons for a van's radiator "boiling over" include the following: insufficient water level, radiator blockage, radiator leakage, abnormal operation of the thermostat's large and small circulation conversion, and abnormal cooling fan speed. Below are the relevant explanations: 1. Insufficient water level: Prolonged water circulation can cause gradual water loss, leading to a lack of water in the radiator, and failure to check and add water in time. This can easily cause the radiator to "boil over." 2. Abnormal cooling fan speed: The cooling fan may be damaged or have a short circuit causing it not to work, or the fan speed may be very slow. A faulty fan water temperature sensor can prevent the cooling fan from starting normally.
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