Understanding Air Suspension Systems

August 2024

Suspension upgrades are a popular aftermarket accessory for truck, Jeep, and SUV owners looking to improve performance, handling, and aesthetics. At MC Customs, we specialize in a wide range of suspension upgrades, from leveling kits and suspension lifts, to air lift systems and more. 

Among the many upgrades available, air suspension systems stand out as one of the most popular and transformative. The goal of this article is to provide an overview of air suspension systems, their benefits, pros and cons, and other essential details to help you understand why they might be the right choice for your vehicle.

In summary, air suspension systems can significantly enhance your truck’s performance, comfort, and versatility. Whether you’re looking for a smoother ride, better handling, or improved load-carrying capabilities, an air suspension system might be the ideal upgrade for your vehicle.

If you’re considering an air suspension system for your truck, feel free to visit our shop, request a quote, or give us a call for more information. At MC Customs Truck Accessories, we specialize in suspension upgrades of all kinds. We provide expert installation and advice to ensure you get the best performance and experience out of your suspension upgrade.

What Are Air Suspension Systems?

Air suspension systems replace traditional steel or leaf spring suspensions with a setup that uses air springs (also known as airbags) and a series of supporting components:

  • Air Springs: These are the core components of the system, made from durable rubber and plastic bags that can be inflated or deflated to adjust the vehicle’s ride height and stiffness.
  • Air Compressor: This device pumps air into the air springs, allowing for adjustment of the suspension.
  • Air Lines: Tubes that carry air from the compressor to the air springs.
  • Valves: Control the flow of air into and out of the air springs.
  • Electronic Control Unit (ECU): Often included in modern systems, this unit allows for automated adjustments based on driving conditions.

Benefits of Air Suspension Systems

Air suspension systems offers many benefits that can significantly enhance your driving experience. One of the most notable advantages is the superior ride quality. Air suspension provides a smoother, more comfortable ride by absorbing bumps and road imperfections more effectively than traditional suspensions.

Another significant benefit is the adjustable ride height, which allows you to lower the vehicle for better handling on highways or raise it for off-road adventures. For those who frequently haul heavy loads, air suspension systems can maintain a level ride height regardless of the weight being carried, improving safety and ensuring consistent handling and braking performance.

Additionally, by adjusting the air pressure in each air spring, air suspension systems can improve the vehicle’s handling and stability, especially when cornering or driving on uneven terrain. A smoother ride also means less stress on the vehicle‘s chassis and components, potentially reducing maintenance costs and extending the life of your truck.

Pros and Cons of Air Suspension Systems

While air suspension systems offer many benefits, it’s important to consider both the pros and cons before making a decision:

Pros:

  • Comfort: Enhanced comfort for both driver and passengers.
  • Versatility: Ability to adjust ride height and stiffness to suit different driving conditions and preferences.
  • Load Leveling: Automatic leveling for heavy loads, improving safety and handling.
  • Customization: Allows for a high degree of customization in terms of ride quality and performance.

Cons:

  • Cost: Air suspension systems are typically more expensive than traditional suspension setups, both in terms of initial investment and potential repairs.
  • Complexity: The added components and electronics can increase the complexity of the system, leading to higher maintenance requirements.
  • Potential for Failure: As with any system that relies on mechanical and electronic components, there is a potential for failure, which can result in costly repairs.

How Air Suspension Systems Work

In order to understand how air suspension systems work, let’s talk about the mechanics of the system. 

The air compressor is the heart of the system. It takes in ambient air, compresses it, and sends it to the air springs via air lines. The air springs are then inflated or deflated based on the desired ride height and stiffness, controlled by valves that regulate the flow of air.

In modern systems, the ECU plays a crucial role, automatically adjusting the air pressure in each spring based on real-time data from various sensors, ensuring optimal performance in different driving conditions. Many systems also come with a manual control option, allowing drivers to adjust the ride height and stiffness according to their preferences through a control panel inside the vehicle or a remote control.

Common Applications for Air Suspension Systems

Air suspension systems are popular in several applications, the most popular applications include:

  • Towing Vehicles: Ensuring a level ride when towing heavy trailers.
  • Luxury Vehicles: Offering a smooth and luxurious ride.
  • Off-Road Vehicles: Providing adjustable ground clearance for tackling challenging terrains.
  • Commercial Trucks: For improved load handling and comfort during long hauls.

Maintenance Tips for Air Suspension Systems

To keep your air suspension system in top condition, consider the following maintenance tips:

  1. Regular Inspections: Periodically inspect the air springs, air lines, and other components for signs of wear or damage.
  2. Keep It Clean: Ensure that the air compressor and other components are kept clean and free from debris.
  3. Check for Leaks: Regularly check for air leaks, as these can affect the performance of the system.
  4. Follow Manufacturer Recommendations: Adhere to the maintenance schedule and guidelines provided by the manufacturer.