Air suspension is good for daily driving, but if it is not airing up as it should, there could be a problem.
You may feel your vehicle has lost its levitating powers, leaving you grounded and puzzled.
What are the causes behind this issue and practical solutions to address this problem? Dive in to learn more about air suspension not airing up problems.
I will restore your system and restore your vehicle’s smooth ride!
What Are The Reasons For Air Suspension Not Airing Up?

4 common air suspension system problems include faulty air compressors, air springs or airbags, and solenoid valve manifolds.
Moreover, leaks, clogs, and electrical errors can be the reasons for the air suspension compressor not turning on.
Defective Air Springs Or Airbags
Defective air springs or airbags can significantly impact the performance of the air suspension system.
The air springs, also known as airbags, support the vehicle’s weight and provide a smooth ride.
Trailer airbags not inflating may force them not to hold air pressure properly or develop leaks, leading to issues with the air suspension.
When my car has defective air springs or airbags, I easily notice an uneven ride height, sagging suspension, a bumpy or harsh ride, and excessive bouncing.
Leaks And Clogs
A clogged airline can obstruct the smooth air flow into the suspension system. This blockage can occur due to dirt, debris, or moisture accumulation in the airlines.
Over time, these contaminants can restrict or completely prevent the air from reaching the suspension components. Thus, it will fail the system to air up.
Leakage is another culprit of air suspension issues. It can stem from various sources, including poor seals, a cracked air tank, or damaged components within the system.
These leaks may develop due to normal wear and tear, driving habits, or external factors.
The air leakage will entail pressure loss, preventing the suspension system from properly inflating and maintaining the desired ride height.
Faulty Air Compressor
The compressor plays a crucial role in maintaining the inflation of the air springs in the air suspension system by pumping compressed air into it.
When the compressor malfunctions, it can’t effectively generate or deliver the required compressed air.
As a result, the air springs may not be adequately inflated, making the suspension system lose its ability to absorb shocks and vibrations properly.
A range of problems can arise due to this malfunction, such as:
- Uncomfortable ride
- Decreased stability and control
- Uneven tire wear
- Compromised handling
- Poor driving experience and safety
Solenoid Valve Manifold Malfunction
The solenoid valve manifold is responsible for regulating the flow of air to the air springs or bags.
It may go wrong due to a broken valve spring, leading to problems such as improper inflation of the air springs and resulting in an uneven ride height.
In this case, my vehicle starts to exhibit bouncy or unstable behavior, particularly when driving over bumps or rough terrain.
Factors that can contribute to the malfunction of the solenoid valve manifold include:
- Leaks in the airlines can disrupt the proper flow of air to the air springs.
- A faulty pressure sensor that fails to measure and regulate the air pressure within the system accurately.
Electrical Issues
The air suspension system relies on various electrical components to function properly.
Below are some potential electrical issues that can provoke air suspension problems:
- Disabled suspension control module: The suspension control module is the electronic control unit that manages and controls the air suspension system.
If there is a malfunction in the control module due to electrical issues, it can interfere with the proper operation of the air suspension.
- Wiring problems: Electrical wiring connects various components of the air suspension system.
Issues like loose connections, damaged wires, or corrosion can hinder the flow of electricity and prevent the system from functioning correctly.
Damaged Suspension Height Sensor
The height sensors are crucial in monitoring the vehicle’s position and adjusting the air suspension accordingly. If the sensor malfunctions, issues with air suspension inflation will follow.
A faulty sensor, wiring problems, or an issue with the control module can cause this.
When a height sensor is damaged, it can’t provide accurate readings to the suspension control module, resulting in improper inflation or deflation of the air springs.
How To Troubleshoot When Air Suspension Not Airing Up?
Clean Dirty Parts
One common air suspension troubleshooting step is to clean dirty, corroded parts or airlines. You can follow these steps:
- Step 1: Locate the airlines
The airlines are typically located near the suspension components, such as the air compressor or airbags.
- Step 2: Inspect for dirt or debris
Check the airlines for any visible dirt, dust, or debris that may be obstructing the airflow.
- Step 3: Clean the airlines
Use a soft brush and soapy water to gently wipe away any dirt or debris from the surface of the airline. Be careful not to damage or dislodge any connections.
- Step 4: Check after cleaning
I always check the airlines again for any signs of damage, such as cracks or leaks. If you notice any issues, you should replace the damaged section.
- Step 5: Test the air suspension
Once the airlines are cleaned, test the air suspension system to see if it airs up properly. Start the vehicle and allow the system to pressurize.
Besides the airlines, check the ride height sensor for dirt and debris and clean it if needed.
Replace Damaged Parts
After checking your suspension system, you may need to replace damaged parts. Common components that may require replacement include:
- The entire air suspension
- Poor seals
- Cracked air tank, air springs, air lines, and air dryer
- Faulty air suspension control module
- Damaged ride height sensor
- Faulty compressor
The air suspension system can regain its optimal performance by replacing these damaged parts and ensuring a smooth and comfortable ride.
It’s best to consult with a qualified mechanic or technician for accurate diagnosis and proper replacement of the damaged components.
Consider A Traditional Coilover Suspension
Strutmasters offers a reliable and durable solution for vehicles experiencing air suspension issues.
Their replacement kits feature heavy-duty steel struts and springs. Thus, it provides a robust and dependable alternative to the fragile components of air suspension systems.
The straightforward design of their kits simplifies the suspension setup and maintenance, reducing the chances of potential issues.
Installing a traditional coilover suspension is quite complicated, so it’s best to allow a skilled mechanic to do it.
What Are Common Signs Of A Faulty Air Suspension?
Symptoms of bad air suspension include:
- Uneven ride height
You may notice one or more corners of the vehicle appear higher or lower than normal. It can affect the overall balance and stability of the vehicle.
- Rough or bumpy ride
When I experience a harsh and uncomfortable ride, feeling every little bump on the road, I know there’s a problem with the air suspension.
The system absorbs shocks poorly, giving you a less smooth ride.
- Suspension fails to adjust
Air suspension systems can adjust the ride height based on driving conditions. If it does not adjust properly or not maintain the desired ride height, it could indicate a malfunction.
- Suspension doesn’t hold air pressure
You may notice that the vehicle sags or lowers when parked for an extended period or that it loses air pressure quickly during driving.
- Unusual noises
Strange noises from the suspension area, such as hissing or air leaks, can hint at common problems with airbag suspension or airlines.
These noises may occur during vehicle operation or when the suspension adjusts.
- Warning lights
Modern vehicles often have warning lights specifically for the air suspension system.
If you see a warning light flashing on your dashboard, it is an indication that there may be a problem with the system.
FAQs
How To Fix An Air Ride Seat Leaking Air?
Step 1: Identify the airlines
Locate the air lines connected to the seat’s up-down switch. These lines supply and release air to adjust the seat’s height.
Step 2: Disconnect the airlines
Remove the airlines from the up-down switch. Take note of their positions and how they are connected.
Step 3: Remove the switch
Using appropriate tools, detach the up-down switch from the seat. It may involve removing screws or clips that hold it in place.
Step 4: Replace or flip the seals
- Using a dental pick or a similar tool removes the existing rubber seals. Inspect them for any damage or wear. If they appear worn or damaged, consider replacing them.
You can flip the seals over to use the opposite side, which may provide a better seal.
- Reassemble the components and reconnect the airlines to the up-down switch, ensuring they are securely attached and properly aligned.
Airlift 3p Controller Not Turning On – How To Fix It?
If your Airlift 3P controller is not turning on and there is no sound coming from the tank, it is possible that the issue is related to a blown fuse.
A blown fuse can cause a loss of power to the controller, resulting in it not turning on.
I recommend replacing the blown fuse with a new one.
Locate the fuse box in your car, refer to the user manual or a diagram to identify the fuse related to the Airlift system, and replace it with a fuse of the same rating.
How Much Does It Cost To Replace An Air Compressor?
On average, you can expect to pay between $900 and $1200 for a new air compressor.
If you’re considering professional installation or any additional services, those costs should be taken into account as well.
Conclusion
In conclusion, air suspension not airing up can be caused by several reasons.
Understanding common air suspension problems and solutions is necessary to replace or repair the damaged parts properly.
Remember, regular maintenance and prompt air lift troubleshooting can help ensure the optimal performance of your air suspension system.