1990-1993 Chrysler Fifth Avenue Rear Air Suspension Conversion Kit (DB1RB)

Replaced Components
The 1990-1993 Chrysler Fifth Avenue is built with the following suspension components: 1990-1993 Chrysler Fifth Avenue Air/Electronic/Magnetic Shock Absorbers (x2)- shocks that contain an air bladder or magnets whose dampening capabilities are controlled by the suspension control module. 1990-1993 Chrysler Fifth Avenue Air Struts (x2)- struts that contain an air bladder whose dampening capabilities is controlled by the suspension control module; these have two functions. They connect the wheel of a vehicle to the driving surface in order to reduce the effects of vertical travel on a rough surface which controls the bounciness, and therefore comfort, of a vehicle. They also help maintain the vehicles correct ride height, especially whenever the amount of load put onto the vehicle changes. 1990-1993 Chrysler Fifth Avenue Air Springs (x2)- commonly referred to as air bags, a plastic and rubber bag that is fitted on top of the strut that uses pressurized air as a cushion instead of a metal coil spring to hold a vehicle off of the ground and off of its wheels. These are the number one cause of all air suspension leaks. All air springs all 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. 1990-1993 Chrysler Fifth Avenue Height Sensors (x2)- a linkage located near each wheel of a vehicle with any electronic suspension that, either mechanically or electronically, constantly measures the height of the vehicle, and reports this information back to the control module so that the computer can identify if changes in height need to be adjusted accordingly. The ride height sensor is a moving part, and like all moving parts, they will eventually wear out. 1990-1993 Chrysler Fifth Avenue 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. 1990-1993 Chrysler Fifth Avenue Compressor- creates/sends pressurized to active suspension components. When the air suspension starts leaking, the compressor/pump starts working harder to try to keep the system inflated. By the time air suspension leaks down completely, sitting the vehicle on its tires, the compressor will either have failed or be well on its way to full failure. Buying replacement struts and taking the time to install them only to find out the compressor still needs to be replaced can be very frustrating, time-consuming, and expensive. 1990-1993 Chrysler Fifth Avenue Dryer Assembly- used to keep moisture out of air lines and air springs in order to prevent freezing and internal cracking of these parts. Once air suspension starts leaking, moisture will build-up throughout the air system. Moisture damages the air suspension from the inside. The dryer will need to be replaced in order to eliminate the moisture and prevent any further damage. 1990-1993 Chrysler Fifth Avenue Suspension Control Module- a computer which is responsible for the operations of the air suspension system and maintaining the vehicle’s correct ride height. 1990-1993 Chrysler Fifth Avenue 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
There are signs you can look for that can help you diagnose a failed or leaking air suspension in your 1990-1993 Chrysler Fifth Avenue. Many of them are common, so you may have seen them on other vehicles, too. The most frequently seen is a sudden noticeable uneven height difference between different sides of the Fifth Avenue. Sagging, in the rear or front, is very indicative of a suspension system going bad. One inflated side that is leaning to the left or right is also seen. Some drivers describe their Fifth Avenue as looking like it is “Squatting” down lower than usual. Generally, if your Fifth Avenue has suspension total failure, it will not be able to consistently maintain its proper ride height. The vehicle is unfit to drive and could potentially be dangerous- you’ll need to get it fixed as soon as possible. There are a couple other signs can further help you diagnose a failed suspension. An illuminated suspension warning light or message on the instrument cluster is a tell-tale sign. Also, check the air compressor. If it is not working or running too much (will be very noisy) then a leaking suspension is the most likely culprit. A repair or replacement may be necessary.