What Causes High Temperature in Power Steering Pump Oil?

[McJuniper]

The main reasons for high temperature in power steering pump oil are as follows: 1. Dirty power steering fluid causing pipeline blockage, poor circulation, and insufficient heat dissipation (recommend replacing the steering fluid). 2. The steering wheel being held at extreme positions for extended periods, such as fully turned left or right, leading to high internal oil pressure in the steering gear. Operating in excessively high-temperature environments with prolonged high-load usage and insufficient cooling can also cause the oil temperature to rise. 3. Water entering the power steering fluid lowers its boiling point, reduces viscosity, and impairs cooling, leading to increased oil temperature. Conversely, excessively high viscosity increases fluid flow resistance and friction, also raising the temperature. 4. Quality issues with the power steering pump, such as overly tight internal bearing fits generating excessive heat, which is then transferred to the power steering fluid, resulting in high oil temperature in the pump.