What is the Suspension Air Bag all about?
Suspension air bags are designed to keep your vehicle from swaying, sagging or otherwise delivering a rough ride when you have it loaded. By adding extra support to your current suspension, your truck or SUV should give you a much smoother ride, even with additional weight. Some upscale SUV’s have factory-installed suspension air bags that automatically level the load and ride height. They are controlled by suspension height sensors that provide information to the body control module, which directs the proper air pressure from a compressor to the air bag. If there is a leak in an air bag, or if your air bag pressure will not adjust, it may need to be replaced.
Keep in mind:
- Except for some upscale vehicles, most trucks and SUVs don’t come with suspension air bags as factory components. If you didn’t add them on yourself, you probably don’t have them.
- Incorrect tire pressure can mimic the symptoms of a weak suspension air bag.
How it's done:
- The vehicle is lifted and supported on jack stands and the rear wheels are removed
- The defective suspension air bag is removed
- The new suspension air bag is installed
- The tires are reinstalled and the vehicle is taken off the jack stands
- The air suspension is activated and tested for proper operation
If your suspension is riding rough, it’s a good idea to have your suspension and suspension air bags looked at. Air bags are typically made of rubber and can be subject to environmental weathering. If you suspect your suspension air bag is leaking, have one of our expert mechanics diagnose them.
What common symptoms indicate you may need to replace the Suspension Air Bag?
- Vehicle rides rough or is bouncy
- When carrying a load, the suspension feels loose or wanders
How important is this service?
The suspension air bags in your vehicle aid in proper control and a comfortable ride. If your air bags are not working as designed, you may experience control problems when driving on the highway. Have the suspension air bags repaired as soon as you are able.