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Suspension Specialists

Tel: (416) 396-3572

Tired Air Ride Components on your OEM Suspension?

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We can fix that..... Tired of expensive Dealer prices?

We stock and service many makes and model cars and SUVs.

Vehicles that use air suspension today include models from Jaguar, Lexus, Jeep Grand Cherokee, Cadillac (GM), Mercedes-Benz, Land Rover/Range Rover, Audi, Subaru, Volkswagen, and Lincoln and Ford, among others.

Common Symptoms and Faults with Factory Air Ride Suspension Systems.

Air Leaks - Some air leaks can be hard to find, but are usually the first signs of a troubled Air System. Most issues start off small, and if they are dealt with quickly, repairs can be simple. But if left alone, components will be forced to work harder and reduce the life expectancy. If you see a significant amount of cracking around the base of your spring, then it may be time to replace them.

Suspension is slow to pump up, after sitting. - Some of today's SUVs automatically lower down to ease entry to the truck and will raise back to a safe driving height. If the compressor takes a long time to recover, and there are no obvious signs of leaks, the compressor may be getting worn out. Intermittent compressor operation, (or only operating for a small fraction of the time, resulting in very slow pump-up of the suspension) can be due to failure of its internal thermal cutout switch, which is designed to shut down the compressor when it gets too hot. If the compressor operation is continuous, there is definitely something wrong.   

Noise or Vibration from the compressor - The most troublesome part of the system is the compressor. Air suspension compressors will become noisy when the rubber mounts deteriorate and become brittle. Loose mounting hardware can also cause noise. If the noise is a harsh rattle, the compressor is probably worn out and needs replacing or rebuilding.

Air Spring Leak - Rubber air bags will wear out. Dry rotting, and cracking will be visible near the bottom of the flex member.

Sometimes leaks can occur on air springs that do not appear to be worn out, and do not have any abrasions. Pin hole leaks around crimp rings are possible. 

Air Spring Failure (Catastrophic) - Abrasions can be caused by rubbing, running the air spring with little or no air pressure, and foreign material (sand, rocks, etc.)

Leveling Sensors - If the vehicle is down on one corner and there are no signs of leaks, there is probably a bad height sensor. The sensors are potentiometers (Variable Resistors)
Another potential cause of leveling problems is a sticky or inactive valve in the valve block, or a fault in the valve block driver circuit.