Diagnosing and Repairing Hydraulic Self Leveling Suspension (SLS)

Oct 6, 2021


Welcome to Grafco Electric, your go-to resource for all your hydraulic self-leveling suspension (SLS) needs. In this comprehensive guide, we will provide you with detailed information on diagnosing and repairing common issues that may arise with your SLS system. Whether you're an automotive enthusiast or a professional mechanic, this guide is designed to help you understand the intricacies of hydraulic SLS and tackle any problems that may come your way.

Understanding Hydraulic Self Leveling Suspension (SLS)

Hydraulic self-leveling suspension, also known as SLS, is an advanced system used in vehicles to automatically adjust the ride height based on load conditions. It uses hydraulic pressure to keep the vehicle level and provide optimal comfort and stability while driving. Proper maintenance and timely repairs are crucial to ensuring the SLS system functions as intended.

Common Issues with Hydraulic Self Leveling Suspension (SLS)

Being aware of potential problems with your SLS system can help you take prompt action and prevent further damage. Some common issues that may arise include:

1. Leaking Hydraulic Fluid

Leaking hydraulic fluid is one of the most common signs of a problem in the SLS system. It can occur due to damaged seals, hoses, or even a failing hydraulic pump. If you notice puddles of fluid under your vehicle or a sudden drop in ride height, it's essential to address the issue promptly to prevent further damage.

2. Irregular Ride Height

If your vehicle's ride height is uneven or constantly changing even when the load conditions remain the same, there may be an issue with the SLS system's sensors or control module. Determining the root cause requires a thorough diagnostic process to pinpoint the exact component that needs repair or replacement.

3. Noisy Suspension

Unusual noises coming from the suspension, such as clunking or rattling sounds, can indicate problems with the SLS system. Faulty shock absorbers, worn-out bushings, or loose components can all contribute to these noises. Proper inspection and appropriate repairs are necessary to restore the smooth and quiet operation of your SLS system.

Diagnosing and Repairing Hydraulic Self Leveling Suspension (SLS)

Step 1: Visual Inspection

The first step in diagnosing SLS issues is conducting a visual inspection of the key components. Check for any signs of leaks, damaged hoses, or worn-out suspension parts. It's crucial to ensure the vehicle is safely supported and the suspension is at a relaxed state before proceeding with the inspection.

Step 2: Diagnostic Scan

Performing a diagnostic scan using specialized equipment can help identify any fault codes stored in the SLS system's control module. These fault codes provide valuable insights into the specific areas of concern, streamlining the repair process and reducing guesswork.

Step 3: Pressure and Functionality Tests

Conducting pressure and functionality tests allows you to evaluate the performance of the hydraulic system. By comparing the measured values to the manufacturer's specifications, you can identify any deviations that may indicate a failing component. This step requires expertise and proper knowledge of the SLS system.

Step 4: Component Replacement

If a specific component is identified as faulty, it's important to replace it with a high-quality, compatible part. Whether it's a leaking hydraulic hose or a malfunctioning control module, proper component replacement ensures the restoration of optimal SLS system functionality.

Step 5: System Calibration

After repairing or replacing the faulty component, it is crucial to calibrate the SLS system to ensure its accuracy and effectiveness. This step typically requires specialized tools and software to synchronize the sensors and control module, allowing them to work together seamlessly.

Trust Grafco Electric for Your SLS Needs

At Grafco Electric, we are committed to providing top-notch diagnostic and repair services for hydraulic self-leveling suspensions. Our team of experienced technicians possesses in-depth knowledge of SLS systems and can efficiently diagnose and resolve any issues you may face. With our state-of-the-art equipment and dedication to customer satisfaction, you can trust us to get your vehicle back on the road with a fully functional SLS system.

Contact Us Today

If you're experiencing problems with your SLS system or have any other automotive electrical needs, don't hesitate to reach out to Grafco Electric. Contact us today for reliable SLS diagnosis, repair, and exceptional customer service.