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How to Determine if the Power Steering Pump is Faulty?

1 Answers

LeBenjamin

07/29/25 12:26pm

First, check if there is any oil leakage from the power steering pump. If the power steering fluid hasn't been replaced for a long time, the probability of the pump being damaged is high. Below are the relevant details: 1. For a mechanical hydraulic power steering system, it is recommended to turn the steering wheel while stationary and stepping on the accelerator. If the steering wheel becomes noticeably lighter, it indicates a problem with the power steering pump. Only vehicles with an electro-hydraulic power steering system or a mechanical hydraulic power steering system have a power steering pump. 2. Some vehicles use an electric power steering system, which has no hydraulic components or power steering pump. 3. The electric power steering system directly relies on an electric motor to provide steering assistance. In the electro-hydraulic power steering system, the power steering pump is driven by an electric motor, whereas in the mechanical hydraulic power steering system, the pump is driven by the engine. The hydraulic power steering system requires power steering fluid, which needs to be replaced regularly. Failure to replace it for an extended period may lead to damage of the power steering pump.

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