Common Causes Of Heavy-Duty Truck Suspension Problems And How To Solve Them

At BnB Garage in Ancaster, Ontario, we are passionate about all things heavy-duty truck maintenance. One critical system that often doesn't get as much attention as it deserves is the suspension system. The suspension system is vital for the truck's handling, ride comfort, and the prevention of premature wear and tear on tires. Today, we will discuss common causes of heavy-duty truck suspension problems and how to solve them.

Understanding Truck Suspension Systems

The suspension system of a heavy-duty truck is a complex network of components, including leaf springs, shock absorbers, axle housings, linkages, and wheels. In the case of air suspension setups, components like airbags, air dryers, airlines, and air compressors are also present. Your suspension system connects the vehicle to its wheels and aids in stable handling and comfort by mitigating shocks and vibrations.

Common Causes of Suspension Problems

• Worn-Out Shock Absorbers: Shock absorbers help to absorb road impact and avoid uncomfortable and damaging bouncing. Over time, they can wear out or become damaged, leading to a rough ride, excessive bouncing, and difficulty steering.
• Broken Leaf Springs: Leaf springs are a basic form of suspension for heavy-duty trucks. They can crack or break due to heavy loads, rough road conditions, or simple wear and tear, leading to a sagging suspension and uneven tire wear. Aside from the leaf spring itself, you may also find that your leaf spring hangers rust or malfunction. Leaf spring hangers are designed to let your leaf spring change lengths as your traverse over uneven terrain. 
• Damaged Air Springs: In air suspension systems, damaged or worn-out air springs can cause deflation, resulting in an uneven ride height and poor handling. Air spring damage can come in a variety of forms, from leaks to dry rot. 
• Unbalanced Load: An improperly balanced load can put excessive strain on one part of the suspension, leading to premature wear and tear. Following loading and unloading best practices is a large part of keeping your suspension in good shape. 
• Bushings and Linkages: Bushings and linkages can wear out over time, causing loose steering feel and rattling noises. Bushings are designed to absorb shock, similar to how shock absorbers absorb road impacts, hence the symptoms of failing bushings.  

Solving Suspension Problems

The solution to suspension problems begins with regular inspections and early detection. Here's how you can address the common suspension issues:

‍

• Shock Absorbers: Regularly check your shock absorbers for any signs of fluid leakage or damage. If you notice your ride becoming more uncomfortable or bouncing excessively, it might be time to replace them.
• Leaf Springs: Inspect your leaf springs regularly for any signs of cracks or breaks. If damaged, they should be replaced promptly to avoid further damage to the suspension system.
• Air Springs: Maintain a regular check on the air pressure in the springs. Look for any signs of damage or excessive wear, and replace them if necessary.
• Balanced Load: Always ensure your load is balanced properly, distributing the weight evenly across your vehicle's axles. This helps to prevent excessive strain on any one part of the suspension.
• Bushings and Linkages: Regularly inspect bushings and linkages for wear and tear. If they're worn out, replace them to ensure your steering stays precise and your ride stays smooth.

‍

At BnB Garage, our approach to resolving suspension issues is proactive and comprehensive. Our technicians are trained and experienced in dealing with heavy-duty truck suspensions. From routine inspections to major overhauls, we're here to ensure that your truck's suspension system is in top shape.

Dealer Level Diagnostic Software & Equipment 

We utilize state-of-the-art diagnostic equipment to accurately pinpoint any issues, allowing us to address problems quickly and efficiently. In addition, we believe in preventative maintenance, and we'll provide you with a comprehensive plan to keep your suspension system in excellent condition.

Schedule an Appointment Today 

The key to avoiding heavy-duty truck suspension problems lies in regular inspections and prompt, professional repairs. Remember, a well-maintained suspension system ensures a smoother, safer ride and prolongs the lifespan of your heavy-duty truck. Trust BnB Garage with your suspension maintenance and repairs - we'll keep your truck running smoothly, mile after mile.