If my power steering rack is leaking, can I add new fluid until I can fix it?

17-03-2025

In the course of daily vehicle care and maintenance, the proper functioning of a power steering rack is essential to driving safety. When a power steering rack fails, one of the most common symptoms is a fluid leak. When faced with a power steering fluid leak, many car owners often choose to simply add new fluid to keep the vehicle functioning until they find time to repair it. However, the problem of power steering fluid leaks is far from being solved by simply adding new fluid, and the reasons behind it can be complex and varied.


So, if the power steering fluid is leaking, can the owner rely on continuing to add new fluid to delay the repair time? Will this approach really solve the problem, or will it bring more serious consequences? This article will delve into the common reasons for power steering fluid leaks, whether it is feasible to continue to add new fluid, and the possible impact of doing so.

power steering rack

What are the reasons for power steering rack leaks?

Before we delve into whether adding new fluid is effective, we first need to understand the common reasons for power steering rack leaks. The power steering rack relies on hydraulic fluid to achieve power steering, and once the fluid leaks, the performance and steering control of the power steering rack will be seriously affected.


1. Damaged or loose connection hoses

The hydraulic fluid in the power steering system flows through hoses and pipes that connect the steering pump, steering rack, and reservoir. If these hoses are old, cracked, or the connections are loose, hydraulic fluid can leak out of these places. This is one of the most common reasons for power steering rack leakage.


2. Aged or damaged seals

The seals in the power steering system are used to prevent fluid leakage, but over time, seals will gradually lose their sealing ability due to friction, thermal expansion and contraction, and material aging. Once the seal is damaged, fluid will leak out of the steering rack, pump, or other key parts.


3. Broken or worn oil seals

The oil seals in the power steering system are responsible for keeping the fluid circulating in the pump and rack. When there is a problem with the oil seal, such as cracking or wearing, the hydraulic fluid will quickly leak out. In this case, simply adding new fluid will not repair the damaged oil seal.


4. Cracked or damaged reservoir

Power steering fluid is usually stored in a dedicated reservoir. If the reservoir itself is cracked or damaged, the fluid will leak from the crack. In this case, adding new fluid can only temporarily make up for the lack of fluid, but it does not solve the fundamental problem.


5. Pump failure

The power steering pump is one of the core components in the system, responsible for pressurizing the fluid to ensure that the hydraulic oil can effectively transmit the power. If the internal components of the pump are damaged, the hydraulic oil may leak from the pump body or the connection. Pump failure will not only cause fluid leakage, but also affect the smoothness and accuracy of steering.

steering rack

Can adding new fluid temporarily solve the problem of power steering rack leakage?

Faced with power steering rack leakage, many car owners will choose to delay the repair of the problem by constantly adding new fluid. On the surface, this seems to be a simple and effective emergency measure, but this approach actually has many limitations and may lead to bigger problems.


1. Only temporarily alleviate the problem

In the early stage of power steering rack leakage, adding new fluid can indeed restore the normal operation of the steering system in a short time. This is because the hydraulic system needs sufficient fluid to maintain pressure and ensure the normal operation of the steering power. However, this method is only a temporary solution because the fluid will continue to leak and the root cause of the problem has not been solved.


2. Waste of fluid and money

Power steering fluid is a specially designed fluid used to lubricate and cool system components under high pressure. It has a certain viscosity and durability, so the price is relatively high. If the power steering rack continues to leak fluid, the owner will have to frequently purchase new power steering fluid to replenish it. This not only increases maintenance costs, but also leads to fluid waste. What's more serious is that the fluid leaking from the power steering rack may pollute the environment.


3. Failure to fix the root problem

Whether it is due to aging hoses, cracked seals, failed oil seals, or damaged pumps, power steering rack leakage is caused by physical damage to mechanical parts. Adding new fluid does not fix these mechanical failures, but may make the problem more complicated. As the fluid continues to leak, the wear inside the system will increase, and eventually the entire power steering system will fail.


4. Ignoring maintenance may bring greater risks

Continuously adding new fluid to delay repairs will cause car owners to ignore the seriousness of the problem. Once the hydraulic fluid in the power steering system is completely exhausted, the driver may suddenly lose steering assistance, especially when driving at low speeds, and the steering will become extremely heavy, making driving more difficult and dangerous. Worse still, the power steering pump running without fluid will cause excessive wear on the pump and eventually cause it to completely fail.

power steering

What are the possible consequences if the power steering rack leak is not repaired in time?

Ignoring the power steering rack leak will not only greatly reduce the vehicle's handling, but also lead to a series of potential safety hazards. Here are a few situations that may occur:


1. Steering failure

The hydraulic fluid in the power steering system is the key to maintaining steering assistance. If the fluid is exhausted, the steering assistance will completely disappear, and turning the steering wheel will become very difficult, especially when driving at low speeds or parking. A power steering rack without assistance can make driving very dangerous, especially in an emergency, and the driver may not be able to quickly control the direction of the vehicle.


2. Power steering pump damage

The power steering pump requires fluid for lubrication and cooling. If too much fluid leaks from the system, the pump may overheat due to lack of lubrication, causing internal components to wear or burn out. Once the pump is completely damaged, the entire power steering system will not work and the cost of repair will increase significantly.


3. Damage to other components

Other key components in the power steering system, such as racks and pinions, also rely on lubrication from hydraulic oil. If the fluid leaks, resulting in insufficient lubrication in the system, these components will be subjected to greater friction and pressure, increasing the rate of wear. Long-term fluid leakage can cause these components to be severely damaged, and even require the replacement of the entire power steering system.


4. Potential safety hazards

In addition to problems with the steering system itself, power steering rack leakage may also accumulate at the bottom of the vehicle. If these fluids come into contact with high-temperature components such as exhaust pipes, they may cause fires. In addition, fluid leakage to the ground will also pollute the environment, especially in hot weather, where the evaporation of the fluid may produce harmful gases.

power steering rack

How to deal with power steering rack leakage?

In the face of power steering rack leakage, the most effective solution is not to continue to add new fluid, but to find the source of the leak as soon as possible and repair it. The best way to prevent fluid leaks is to regularly check the vehicle's power steering system. Especially for hoses, seals and oil seals, regular inspections can detect potential problems in time and avoid leaks.


Once the power steering rack is found to be leaking, the owner should send the vehicle to a professional repair point for inspection and repair as soon as possible. Depending on the severity of the problem, it may be necessary to replace the hose, seal, oil seal or power steering pump. Repairing the fault as soon as possible can prevent the problem from getting worse and reduce repair costs.


In the power steering system, it is crucial to use the correct type of hydraulic fluid. Different vehicles have different requirements for power steering fluid, and car owners should follow the recommendations of the vehicle manufacturer and choose the appropriate fluid. If an inappropriate fluid is used, it may cause wear and failure of the internal components of the power steering system.


Guangdong Diamond Auto Parts Co., Ltd. (DKM Company) specializes in manufacturing power steering systems with superior quality and affordability. Since 1996, we have been serving the automotive industry, supplying gear-and-rack and hydraulic power steering racks to OEMs, dealerships, and distributors worldwide. Our advanced facilities, spanning 20,000 square meters, include over 280 state-of-the-art machines, ensuring consistent performance and reliable output. With a production capacity of 300,000 units annually, we cater to global brands like Toyota, Honda, Mitsubishi, Hyundai, and more. If you're looking to buy high-quality power steering systems from a trusted factory in China, contact us today for special promotions and a personalized quote!

Get the latest price? We'll respond as soon as possible(within 12 hours)

Privacy policy