The easiest and most efficient way to clean a power steering filter, assuming it is located within a remote reservoir (separate from the pump), involves removing the reservoir and using specific cleaning agents.
Cleaning a Remote Power Steering Reservoir Filter
According to automotive advice, the most effective method is to remove the reservoir itself, provided it is a remote unit and not an integral part of the power steering pump. Once removed, you can clean the filter element, which is often a screen or mesh located inside the reservoir, by using a spray cleaner.
The suggested cleaning agents include:
- Brake clean
- Carb cleaner
- Solvent
- A gasoline product
Here's a breakdown of the process:
- Locate the Reservoir: Identify if your vehicle has a remote power steering fluid reservoir, typically connected to the power steering pump by hoses.
- Disconnect and Remove: Carefully disconnect the hoses and mounting hardware to remove the reservoir from the vehicle. Ensure you drain any remaining power steering fluid beforehand and use appropriate containers.
- Access the Filter: The filter screen is usually built into the reservoir itself.
- Apply Cleaning Agent: Using a spray can of one of the recommended cleaners (brake clean, carb cleaner, solvent, or a gasoline product), thoroughly spray the filter screen to dislodge debris and old fluid residue.
- Rinse (Optional but Recommended): After spraying, you might rinse the reservoir with clean water or more cleaning agent to ensure all loosened particles are removed.
- Allow to Dry: It is crucial to allow the reservoir and filter to dry completely before reinstallation to avoid contaminating the power steering system with cleaning chemicals or water. Compressed air can help speed up the drying process.
- Reinstall: Reattach the reservoir, reconnect the hoses, and refill the system with the appropriate type of new power steering fluid. Bleed the system according to your vehicle's service manual instructions.
Recommended Cleaning Agents
| Cleaning Agent | Type of Cleaner | Primary Use (General) | Notes |
|---|---|---|---|
| Brake Clean | Solvent-based or Non-Chlor. | Removing brake dust and grease | Evaporates quickly. |
| Carb Cleaner | Strong Solvent Blend | Cleaning carburetor components | Effective on varnish and fuel residue. |
| Solvent | Various (e.g., Mineral Spirits) | General degreasing | Requires proper ventilation. |
| Gasoline Product | Petroleum-based | Fuel system cleaner/solvent | Highly flammable, use with extreme care. |
Note: Always handle cleaning agents with caution in a well-ventilated area and follow product safety instructions.
Important Considerations
This cleaning method is primarily applicable when the power steering filter is integrated into a remote reservoir. Many modern vehicles use power steering systems with non-serviceable filters, or the filter might be part of the pump itself, which typically requires component replacement rather than cleaning. Always consult your vehicle's service manual to understand your specific power steering system components and recommended maintenance procedures.
