Power Steering Reservoirs

The power steering reservoir is critical to your vehicle’s power steering. It stores and supplies the hydraulic fluid necessary for the steering pump to power the gearbox. The reservoir's internal design is essential, especially in higher-flow performance systems. The ultimate goal is to keep the fluid calm and air-free. 

Lee reservoirs are much more than tanks for holding fluid. Our power steering reservoir uses a unique design to keep the fluid still. Our proprietary design, which includes a series of baffles and a fluid-slowing return T tube, results in zero cavitation. This reduces air in the oil, keeping operating temperatures lower. We also utilize a pressurized reservoir cap that removes dirt and oil.

Frequently Asked Questions About Power Steering Reservoirs 

What does a power steering reservoir do?

The power steering reservoir is responsible for storing and supplying the hydraulic fluid necessary for a steering pump to power the gearbox.

Can the reservoir style make my pump noisy?

Yes. Reservoir design can make for a noisy pump. Improper baffling, lack of baffles, and improper return line placement can all lead to air in the system and a noisy pump. Every day, we get calls from customers using aftermarket reservoirs, which makes their systems noisy. The Lee Power Steering reservoirs have a proprietary internal design that uses a series of baffles and a fluid-splitting return tube that helps slow the fluid return and keeps the fluid perfectly still. This design also results in a much cooler system.

Are baffles in the power steering reservoir helpful?

Yes. Baffles can significantly help by reducing turbulence in the fluid as it returns to the reservoir, preventing air from being drawn into the system and allowing settling of contaminants, ultimately improving the performance and lifespan of the power steering pump.

Can vented caps leak under extreme driving conditions?

Yes. Many reservoirs use a vented cap. In extreme driving conditions such as road course racing, autocross, off-roading, and rock climbing, the cap will “dribble.” Our reservoirs use a pressurized cap that will not leak. Instead, we use a vent tube that can be routed to a location of your choice to let any excess pressure escape.

How do I know if my power steering reservoir is failing?

Common signs of a failing power steering reservoir include fluid leaks, low fluid levels, strange noises when turning, or a more challenging time steering.

Can I drive with a leaking power steering reservoir?

You can, but driving with a leak is not recommended. Leaks will lead to low fluid levels, which will cause pump damage and eventually cause the steering system to fail. You should immediately repair or replace a leaky power steering reservoir.