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The Benefits of a Well-Maintained Suspension System

September 10, 2024 by Denver Express Car Care

When your car’s suspension system is well-maintained, you barely notice the dips and bumps in the road as you go about your day. But when something is wrong with your car’s suspension system, suddenly, it’s a new game. 

“What was that?” becomes a part of your daily vocabulary. You feel every bump, and it’s not a pleasant experience. 

Have you noticed a rougher ride? It might be your suspension system. Here’s what you need to know. 

The Nitty Gritty of a Working Suspension System

Even if you don’t know much about a working suspension system, chances are you’ve heard many of the terms. The purpose of a car’s suspension system is to provide a smooth ride and maintain control while driving. Key components work together to absorb shocks from the road, keep the tires in contact with the ground, and ensure the vehicle remains stable.

So let’s start with the first component: springs. They come in different types, such as coil springs, leaf springs, torsion bars, and air springs. Their primary job is to absorb the energy from bumps and dips in the road, helping to keep the vehicle steady and comfortable for passengers.

Shock absorbers, or dampers, control the movement of the springs, preventing the car from bouncing too much after hitting a bump. Shock absorbers work by converting the kinetic energy from the wheel’s movement into heat, which is then dissipated. This helps keep the car stable and improves handling.

In many cars, struts combine a shock absorber and a coil spring into one unit. Struts provide both structural support for the suspension system and the car’s body. They are commonly used in vehicles with a front-wheel-drive setup, where a compact and efficient design is beneficial.

The Benefits of a Well-Maintained Suspension System

Control arms, also known as A-arms, are hinged parts that connect the wheel hub to the vehicle’s frame. They allow the wheels to move up and down while keeping them properly aligned. This helps maintain the correct positioning of the tires on the road, which is essential for steering and stability.

Ball joints act as pivot points between the wheels and the suspension system, allowing smooth movement and steering. Meanwhile, bushings, typically made from rubber or polyurethane, provide a cushion between metal parts, reducing vibrations and allowing certain components to move without making contact with each other.

To reduce body roll during turns, most vehicles have stabilizer bars, also known as sway bars or anti-roll bars. These bars connect the opposite wheels, helping the car stay level when cornering. By distributing weight more evenly, stabilizer bars enhance handling and safety.

Tie rods are part of the steering system that links the steering rack to the wheel hub. They help transmit the motion from the steering wheel to the wheels, making it possible to turn the vehicle smoothly. Wheel bearings support the wheels’ rotation with minimal friction, allowing them to spin freely while bearing the vehicle’s weight.

There are different types of suspension setups. In an independent suspension, each wheel on the same axle can move independently, which improves ride comfort and handling. Common types of independent suspension include the MacPherson strut, double-wishbone, and multi-link systems. In a dependent suspension, a solid axle connects the wheels, meaning movement on one side affects the other. This setup is often used in older vehicles and some trucks for its durability and load-carrying capability, although it offers less comfort and precision.

Some cars use air suspension systems, which replace traditional coil springs with air springs. Air suspension can be adjusted to change the vehicle’s ride height and stiffness, providing a smoother ride and adaptability to different driving conditions.

Understanding suspension geometry is also important for optimal vehicle performance. Key terms include camber (the tilt of the wheels when viewed from the front), caster (the tilt of the steering axis when viewed from the side), and toe (the angle of the wheels when viewed from above). These angles are carefully adjusted to ensure proper tire contact with the road, stability, and minimal tire wear.

Suspension tuning involves making adjustments to various components, such as spring rates, damping rates, sway bar stiffness, and suspension geometry. These tweaks are made to optimize the vehicle’s ride comfort, handling, and performance for different driving conditions and preferences.

In a nutshell, this is all you need to know about your car’s suspension system. We realize it’s a little more complicated than this, but this general summary will help you get to know your car a little better. 

And that’s half the battle of keeping it in good operating condition. 

When Your Suspension System Is Running Well … And When It’s Not

When your car’s suspension system is in good condition, it provides a smooth and comfortable ride. You’ll notice that your car handles well, even on rough roads or when driving over bumps. The suspension absorbs shocks effectively, preventing you from feeling every imperfection in the road. 

There’s more. A well-maintained suspension system ensures that your tires remain in good contact with the road surface, which is crucial for optimal traction and safety. This means better handling and more predictable behavior during turns, braking, and acceleration. Overall, a healthy suspension system contributes to a safer and more enjoyable driving experience.

Now let’s compare it to a suspension system not functioning properly. You may start to notice several signs. One of the most common indicators is an unusually bumpy or uncomfortable ride, even on relatively smooth roads. You might feel every small bump or pothole, suggesting that your shock absorbers or struts are worn out. 

Poor handling can be felt in other ways. Your car might sway excessively during turns, nose-dive when braking, or feel unstable at higher speeds. Uneven tire wear can also be a symptom, indicating that the suspension is not keeping the tires properly aligned with the road. 

Do you notice your car pulling to one side while driving? Do you hear unusual noises like clunking or knocking? It could mean that components like ball joints, bushings, or control arms are damaged. 

This is when you have a choice. Ignoring these issues can lead to further damage and pose serious safety risks. Or you can address any suspension problems promptly. It saves you time and money by handling maintenance items on your terms, not when your car decides to break down. 

Is Your Suspension System Well-Maintained? 

Notice any of these signs? Have questions about your car’s suspension system?

We can help. Schedule an appointment today, and we’ll ensure your vehicle is operating well. It’s the best way to keep your car in good working condition, and be safer every time you slide behind the wheel. 

We can help. Give us a call today.

Filed Under: Suspension, Tips & Tricks Tagged With: Suspension System

Why a Car Needs a Suspension System

January 30, 2020 by Denver Express Car Care

Car performance. When you hear the experts talk about increasing a car’s performance, in most cases, it has to do with horsepower, or how fast a vehicle can move from zero to sixty. We’ve been chasing speed for as long as cars have been in the marketplace. That’s why muscle cars are still celebrated around the globe.

But for the average driver – you and me – performance means something else entirely.

Power is great, but when all you’re doing is driving to the grocery store, or picking the kids up from school, you probably don’t think much about speed. Instead, you want a car that connects well with the road. One that provides a smooth ride no matter what the road conditions are like on the outside.

That’s the suspension system’s job. A vehicle’s suspension system maximizes the friction between the tires and the road, and provides easy steering and good handling to ensure the safety and comfort of the occupants. If all roads were perfectly smooth and flat, a suspension system wouldn’t be necessary. But even just a few short miles from home, your car can travel over many different paths. Gravel roads. Potholes. Construction sites. Curves and turns. Hills. Bumps and dips.Why a Car Needs a Suspension System

Car designers and engineers take all that into account as they create a suspension system. They ensure every vehicle has a proper ride so you don’t notice the bumps and rough spots, and proper handling, so you’re safe with every turn and curve you take.

What is a suspension system?

Like all systems within a vehicle, your suspension system is made up of several other parts and systems, including:

The frame – the car’s structure that supports all important components of the vehicle

The steering system – the parts that give a driver control to guide the car along

The tires and wheels – these make contact with the road and create friction to allow a safe journey

The suspension system – the parts that give your vehicle a comfortable ride and keep the passengers safe on the inside

Let’s dive a little deeper into the parts that make up the suspension system.

Springs are attached to the wheels and are designed to compress and expand with the motion of the wheels. They come in several different varieties, depending on the vehicle’s purpose.

You may also hear springs referred to as sprung or unsprung mass. This refers to the stiffness of the spring. A sprung mass will have looser springs designed to take the punishment of the ride. It swallows the movement keeping the occupants inside free from feeling the bumps of the road. Unsprung is found in higher performance and sports cars. These tightly sprung cars are less forgiving over the bumps in the road to give the driver the ability to drive more aggressively, cornering with ease.

A car also uses shock absorbers to control unwanted spring motion. Springs will continue to coil and release energy unless it has the ability to control it. That’s the shock absorbers job. It slows down and reduces kinetic energy with the use of hydraulic fluid. As a wheel encounters a bump, it causes the spring to coil and uncoil. This energy is transferred to the shock absorber where the pressure is dissipated, slowing down the spring.

Are there different types of suspension systems?

As you drive, you’ve probably noticed your front wheels and back wheels work together. That’s by design. It’s also the reason vehicles come with different types of suspension systems: front and rear. The four wheels work together to get you where you’re going. But the two wheels in front are connected by the front axle, while the two in back operate with the read axle.

The MacPherson strut is one of the most widely used suspension systems available. It combines a coil spring and shock absorber into one, giving the suspension system a lighter, more compact design.

Both front and back suspensions come in dependent and independent design. The spring and shock absorber are mounted as a single unit to the axle, or independently to all four wheels.

Why is a suspension system important?

Your car’s suspension system is responsible for the smooth ride, and for keeping you safe as you drive. It provides you with good handling and steering ability. Without it, you wouldn’t have a comfortable ride.

But a good suspension system does more than that. It also protects your vehicle from premature wear and tear. If your suspension system isn’t working the way it should, it quickly starts impacting other parts and systems throughout your car. Replacing your shocks and struts as needed will help:

  • Control spring and suspension movement
  • Keep the tires connected to the road
  • Maintain wheel alignment
  • Reduce wear on individual tires
  • Keep tires balanced
  • Prevent bounce and sway

How do I know if my suspension system needs repair?

Like other systems within your vehicle, your suspension system is designed to provide warning signs that it is in need of repair. The more you ignore the warning signs, the strong the signals will become.

Your vehicle’s suspension system is in need of repair if:

The car rides roughly

It’s easy to tell when shocks and struts are wearing out because your smooth ride will disappear and you’ll be left to feel every bump in the road. Have you ever referred to your car’s ride as “it feels like I’m riding in a truck”? Yep, that’s a sign your shocks and struts are wearing down. You’ll feel every bump in the road, and your car will bounce along taking in the impact.

The car drifts or pulls

As you turn your vehicle, you’ll feel it drift or pull, having to keep a tighter hand on the wheel to control the direction. This is because the shocks are no longer to keep the body stable as the car moves into the action of the turn. The higher the speed you take turns and curves, the more risk you have of having the car roll over.

The car dips or dives

As the shocks wear out, you’ll notice the front of your vehicle dives forward as you press down on the brakes. This can affect your breakability, increasing the amount of time it takes to stop.

The tires have uneven tread

It’s a good idea to watch your tires for any sign of wear. If you notice uneven wear, it’s a sign the suspension system isn’t doing its job of holding your car evenly down to the road.

The shocks are oily

Have you noticed liquid on the road underneath your tires? If it occurs directly where your shocks are, it could be a sign of damaged struts. If they are leaking fluid, they aren’t working the way they should.

The car can’t pass the bounce test

Try this if you think your car may need a new suspension system. With the car in park, press down on the front hood and release. Does the car bounce more than 2-3 times before settling back into position? Try it again in the back. If it rocks more than the 2-3 times, it’s a sign your suspension system is in need of repair.

For expert repair service, give us a call. We’re here to help you with your suspension system, and all of your auto needs. 

Filed Under: Suspension Tagged With: Suspension System

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