Air Compressors

Performance Suspension Air Compressors

The air suspension system in your vehicle uses an air compressor to generate the pressurized air needed to inflate the springs.This compressor is quite similar to one you’d find in a shop or perhaps even your garage, just smaller.

Despite its size, your suspension air compressor is a vital component of your air suspension system. In fact, it is the muscle that powers the whole operation. Here’s what you should know about air compressors.

How an Air Suspension Compressor Works

Unlike a shop compressor, your suspension compressor is part of an electronically-controlled active response system. It works like this:

• The suspension control module sends information to the compressor to instruct it on how much air to generate.
• The compressor uses mechanical force to generate pressurized air.
• This air is sent to a reservoir tank.
• Air from the tank is pushed through the supply lines and into the air springs.

When Should You Replace Your Suspension Air Compressor?

Under many circumstances, your compressor could last the full lifetime of your vehicle. Most make it well past the 100,000 mile mark. However, if other suspension problems go untreated for a long time, the compressor can overwork and wear out far earlier.

Air Compressor Failure Warning Signs

The earlier you can detect and tend to an issue in your compressor, the less expensive it is to fix. If left alone, you’ll likely need to replace it. Looking out for these signs can help you save money. These signs indicate that your compressor could be failing:

• Noisy cycles: If your compressor sounds overly powerful or makes a squealing or screeching noise, it likely needs servicing or replacing.
• Long cycles: Most air compressor cycles typically last well under a minute. If you notice that your compressor is running for an abnormally long time, it could be having problems.
• Sagging appearance: If your vehicle itself is sagging in any direction, it may be because the compressor is failing to generate enough pressurized air to keep the springs inflated.
• Suspension warning light: If the problem is bad enough, you may notice a suspension warning light on your instrument panel. At this point, you should seek the help of a mechanic immediately.

What to Look For in an Air Compressor Replacement

When you know it’s time to replace your suspension compressor, you’ll want to make sure you’re buying quality components. The compressor is essentially the lungs of your air suspension system. If it doesn’t work or doesn’t work properly, the whole system will suffer.

Some companies make air compressors that exceed the quality and performance of the OEM part. Unfortunately, that’s not all manufacturers. Some cut costs on their end, which could end up costing you in the long run. Here’s what to look for:

• Well-designed components: In order for your air compressor to be efficient, it needs to be designed and built with parts that fit just right. Whether it’s the motor itself or the valves that connect it to the system, all of the parts will be designed will in a high-quality compressor.
• Top-shelf materials: As a part that runs often while you’re driving, durability is key for your compressor. Look for companies that use the best quality alloys, hardware, and electrical components in their compressors.
• Precision engineering: Some companies take a “one-size-fits-most” approach to making compressors. Be sure you’re buying from a company that designs and tests its compressors to fit the individual make and model it’s sold to fit.
• Everything included: You’ll need more than the compressor itself to complete the job. Make sure when you buy a kit that it includes things like the relay. This is an easy way for a manufacturer to perhaps offer a deceptively lower price and cost you time and money finding the parts you need.