The Nissan Skyline R32 GTR, a legendary vehicle, is known for its powerful engine and precise handling. However, the power steering system, while contributing to the car's drivability, can sometimes present issues. One common problem involves the power steering rack solenoid. This guide delves into the reasons for bypassing this solenoid, the benefits, potential drawbacks, and a step-by-step overview of installing a bypass kit.
Why Bypass the Power Steering Rack Solenoid?
The power steering rack solenoid plays a crucial role in regulating the fluid flow to the power steering rack, allowing for variable assistance depending on vehicle speed and steering input. However, these solenoids are known to fail, leading to several problems:
- Power steering failure: A malfunctioning solenoid can completely cut off power steering assistance, making the car extremely difficult to steer, especially at low speeds.
- Whining noises: A failing solenoid often produces a distinct whining noise from the power steering system, indicating imminent failure.
- Erratic steering: Intermittent issues with the solenoid can lead to inconsistent power steering assistance, resulting in erratic steering behavior.
- Leakage: In some cases, a faulty solenoid can cause leaks in the power steering system.
What is a Power Steering Rack Solenoid Bypass Kit?
A power steering rack solenoid bypass kit essentially eliminates the solenoid from the power steering system's operation. This is achieved by creating a direct connection between the power steering pump and the rack, bypassing the solenoid entirely. This means the power steering pump provides constant assistance, regardless of speed or steering input.
Benefits of Bypassing the Solenoid
- Restores power steering: Bypassing the solenoid immediately resolves power steering issues caused by a faulty component.
- Eliminates whining noises: The characteristic whining associated with a failing solenoid is silenced.
- Simple and cost-effective solution: A bypass kit is generally much cheaper than replacing the entire power steering rack or solenoid.
- Improved steering feel (potentially): Some enthusiasts report a more direct and responsive steering feel after bypassing the solenoid, although this is subjective and depends on individual preferences and driving style.
Potential Drawbacks of Bypassing the Solenoid
- Increased effort at higher speeds: With constant power steering assistance, steering might feel heavier at higher speeds compared to the variable assistance provided by the original system. This difference is often minor, but it's something to be aware of.
- Slightly less fuel efficiency (potentially): The power steering pump is constantly working, potentially leading to slightly lower fuel economy. Again, this impact is usually negligible.
- Loss of speed-sensitive steering: You lose the speed-sensitive steering function offered by the original system. This is often viewed as a negligible compromise for those primarily focused on resolving the issue of a faulty solenoid.
How does a bypass kit work?
A bypass kit typically involves replacing a section of the power steering lines with a modified section that removes the solenoid from the circuit. This modified section usually incorporates new fittings or plugs that directly connect the pump output and rack input.
What are the components included in a bypass kit?
Kits often include new lines, fittings, and seals necessary to create the bypass. Specific components vary depending on the manufacturer and the specific R32 GTR model.
Is it difficult to install a bypass kit?
While mechanically inclined individuals can often install the kit themselves, it does require some mechanical aptitude and familiarity with working on vehicles. If you're not comfortable working on your vehicle's steering system, it's strongly advised to seek professional assistance from a qualified mechanic.
Will bypassing the solenoid damage my power steering system?
When done correctly, bypassing the solenoid should not damage your power steering system. Using a high-quality kit and proper installation techniques are crucial to prevent any potential issues.
Are there any alternatives to a bypass kit?
The primary alternative is replacing the faulty solenoid. However, this can be more expensive and potentially involve more complex repairs. Another option, if feasible, is finding a used but functioning solenoid for a less expensive fix.
Conclusion
A power steering rack solenoid bypass kit offers a simple, affordable, and often effective solution to common problems associated with the R32 GTR's power steering system. While there are potential minor drawbacks, the benefits of restoring power steering often outweigh these considerations, making it a popular choice among R32 GTR owners. Remember to always prioritize proper installation and choose high-quality components for optimal results and to ensure the safety and longevity of your vehicle.
