Air Ride Solenoid Valve Repair

Air Ride Solenoid Valve Repair

An air ride solenoid valve may not be the most exciting part of your air suspension system, but it's a critical component that shouldn't be ignored when diagnosing issues with the system.air ride solenoid valve Symptoms that point to a leak in an air spring might actually be caused by a defective valve block. Fortunately, replacing this little piece of hardware is fairly simple and can resolve many air suspension problems.

The air suspension solenoid valve block distributes pressurized air from the compressor to your air springs or air struts. Air comes into the block from the air tank, through ports labeled GAUGE and SUPPLY. It then goes to each individual air bag through the valves, which are triggered by signals from the control module that inform it of the vehicle's actual ride height.

Over time, the valve block's O-rings can dry rot, causing air to leak out and overworking the compressor. In addition, moisture can degrade the electrical components inside the solenoid, further degrading its functionality. Replacing the valve block's O-rings, and perhaps replacing the faulty electrical solenoid, will restore the proper air distribution to your tires.

During normal operation, the pressure release valve (or vent valve) in your air suspension system is supposed to open and let air escape into the atmosphere to keep the air bags properly inflated. If this valve is leaking or stuck closed, it can prevent the air bags from deflating when you remove any weight that would normally cause them to do so.

Another common issue is a valve block that doesn't open when triggered by the control module. This could be due to a dirty plunger or a pronounced indentation on its tip, both of which are easily fixed.

In order to replace the internal valve plunger, you'll first want to make sure that all air is released from the system by opening the bleeder screw at the top of each coil and then removing it from its aluminum base. The plunger will then fall out, along with a spring that will help hold it in place. You'll also need to replace the electric coil if you decide to go with this option.

Most current air suspension systems have the control module, compressor, and valve manifold all integrated into one piece of hardware called a valve block. These are available in 2 or 4 corner versions, with each "corner" controlling two or four air bags respectively. Most kits will include a 2 corner valve manifold when they come with a front or rear only kit, but you can upgrade to a 4-corner model if you're running a full air suspension kit with all 4 corners. A good replacement valve block will be anodized red and branded with a big "Ride Pro" or "Big Red" logo on the aluminum base.

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