2007-2014 Lincoln Navigator 4 Wheel Air Suspension Conversion Kit (FX34F)

Replaced Components
The 2007-2014 Lincoln Navigator is built with the following suspension components: 2007-2014 Lincoln Navigator Air Struts (x4)- conventional struts that use a rubber air spring instead of a steel coil spring. Also called air bags, the air springs are made of plastic and rubber bag and use pressurized air to support the weight of the vehicle. These rubber air springs dry rot and crack with normal wear and tear and that is the number one cause of all air suspension leaks. All air struts go bad at about the same rate. If one is leaking, the others will not be far behind. For a proper repair, all of them need to be replaced at the same time. 2007-2014 Lincoln Navigator Air Lines- tubes that run from a compressor (air suspension) to the air struts which carry pressurized air to the air bags components in order to adjust the height of the vehicle, respectively. 2007-2014 Lincoln Navigator Solenoids (x4)- This vehicle is equipped with 4 solenoids. These plastic components connect the electrical connection and lines of suspension components to the suspension control module. The solenoids are responsible for regulating the air pressure in each air spring or air shock. Solenoids are a small piece of the suspension system but they play a big role in how well it functions. If a solenoid is not working properly, it will cause the vehicle to be unlevel and, in turn, cause the compressor to burn out. 2007-2014 Lincoln Navigator Compressor- This vehicle is equipped with one air suspension compressor. The compressor is responsible for pumping up the air springs and shocks. When the air suspension starts leaking, the compressor is forced to run continuously to try and keep the air springs inflated. After a couple of days of running non-stop, the compressor will burn itself out. Replacing the compressor is a timely and expensive project to undertake. 2007-2014 Lincoln Navigator Dryer Assembly- This vehicle is equipped with a dryer assembly. The dryer assembly is responsible for getting moisture out of the air lines. Once the air suspension parts start to leak, moisture will build up throughout the air system. Moisture damages the air suspension components from the inside out. The dryer must be replaced whenever the compressor is replaced to prevent further damage. 2007-2014 Lincoln Navigator Suspension Control Module- This vehicle is equipped with a suspension control module. This module is the brain of the suspension system and it reads all of the signals that are being sent by the height sensors and determines if the vehicle needs to be raised or lowered. 2007-2014 Lincoln Navigator O-rings- Although they are the least expensive parts of the air suspension, they are responsible for maintaining the seal where all of the air lines connect. Be sure to replace the O-rings when repairing any air suspension system.

Suspension Failure Signs
Your 2007-2014 Lincoln Navigator may be suffering from a bad or leaking air suspension. There are a few signs to look for when you are trying to diagnose if it has failed or is failing. One obvious symptom of suspension total failure is a big difference in ride height from the front to back of the Navigator. Usually with a Navigator, drivers notice the rear sagging first making the front look inflated. It is described as looking like it is squatting down too low to the ground. Another thing to watch out for is a suspension warning message illuminated on the instrument panel. Other vehicle components will wear out, like the air suspension compressor. Check to see if it is running too often (never longer than fifteen-20 seconds) or not working at all. That is a sign you need a suspension repair. Check the rear air springs- if you see visible cracks, that is from dry rot. Some cracks in the rubber air springs may be not been seen until the units are removed from the vehicle.  If any of these signs are present in your Lincoln Navigator, you may need a replacement.

OEM Replacement Cost
'+ Air Struts ($820/ each) + Solenoids ($125) + Compressor and Dryer Assembly ($720) = TOTAL: Over $4,125(and that doesnt even include replacing electronic components that are known to fail such as the height sensors).

Aftermarket Replacement Cost
'+ Front Air Strut Assemblies ($699.00/pair) + Rear Air Strut Assemblies ($699/pair) + Compressor ($200) + Dryer Assembly ($40.00) = TOTAL: Over $1,600 (and that still doesn't include replacing electronic components that are known to fail such as the height sensors).