Suspension Self-Leveling Units

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What is a Suspension Self-Leveling Unit?

A Suspension Self-Leveling Unit (SSLU) is an electronic component that is used to automatically adjust the ride height of a vehicle in order to maintain a constant ride height regardless of the weight of the vehicle or the road conditions.

How do I know if my Suspension Self-Leveling Unit is faulty?

If your SSLU is malfunctioning, you may notice the following symptoms:

  1. a rough ride,
  2. an inconsistent ride height,
  3. the vehicle sagging on one side,
  4. swaying or bouncing while driving, or
  5. an excessive noise coming from the suspension.


Can a faulty Suspension Self-Leveling Unit cause damage?

Yes, if your SSLU is malfunctioning, it can cause excessive wear and tear on other suspension components and lead to costly repairs.

How do I replace a Suspension Self-Leveling Unit?

Replacing a SSLU is a complex task and is best left to a professional. However, if you are an experienced DIYer, the following steps should be taken:

  1. Disconnect the power and ground cables from the SSLU,
  2. Unbolt the SSLU from the suspension,
  3. Install the new SSLU in the same position as the old one,
  4. Reconnect the power and ground cables,
  5. Reinstall the suspension components, and
  6. Test the new SSLU to ensure it is functioning properly.


How often should I inspect my Suspension Self-Leveling Unit?

It is recommended that you inspect your SSLU at least once a year or after any major suspension repairs. During the inspection, check for any signs of wear, corrosion, or leaks. Additionally, you should check the SSLU for any loose connections or wires.