Lincoln Town Car: 1990-Present

Converting from Air Ride Suspension (ARS/RAS) to Coil Springs: Ford, Lincoln, Mercury

ARS = Air Ride Suspension, RAS = Rear Air Suspension

Courtesy of: MotorCarriageService.com

Variable Rate Coil Springs are $99 or less at most Auto Parts stores. A 'kit' is not needed; Coil Springs for a 1996 Lincoln Town Car (and several Grand Marquis and Crown Victoria's) all use the same suspension. Buy Coil Springs for a 1996 Lincoln Town Car; almost any auto parts store will have them. Amazon.com also has them for less but you'll pay shipping and have to wait of course. I recommend Moog brand as they are coated and will last forever. This retro-fit is cheaper than replacing any of the many components that can be wrong with the ARS/RAS and this is by far the easiest fix, and a very easy DIY project. No modification to the vehicle is required, the Coil Springs simply replace the Air Springs. The ride is unmatched; you cannot tell the difference. Anyone suggesting you repair the ARS/RAS is not giving you good advice, the system can & will continue to fail over time.

1. Turn OFF the ARS/RAS in the Trunk.
2. Remove the 30A Fuse for the ARS/RAS in the Fuse Panel that is under the Hood (this will prevent the Compressor from ever coming on again).
3. Set the PARKING BRAKE, loosen lug nuts for rear wheels, chock front wheels.
4. Jack car so wheels are at least 3" off the ground, secure weight of vehicle on Jack Stands, remove both rear wheels.
5. Remove Shock retaining nut from bottom of shock, knock Shock loose. Air Bags should be loose to the touch. Removal of Shocks can be avoided when using a Coil Spring Compressor. O'Reillys will rent you a Coil Spring Compressor for no charge and it makes this job much easier.
6. Remove the clip that holds the Air Bag in place at the top, a bladed screwdriver will achieve this, just push it off the top of the Air Bag. It's a small space but removal of the clip is easily achieved. A similar clip may be found at the bottom of the Air Spring also but not always.
7. Remove the two connectors at the top of the now quite loose Air Bag; one is a plug, the other must be turned to be removed. Secure these to something as far from the exhaust using Zip Ties, no need to remove any of the ARS/RAS hardware, it will not interfere with anything. The Compressor may also stay where it is under the Air Box without need for removing any attachments to it.
8. Install Coil Springs (don't forget the Insulator Bushings) making sure the Springs are seated correctly. Your directions may not state it but the Coil Springs should be installed with the tighter wound portion pointed up. The vehicle is designed to allow for Coil Springs or Air Springs; either fit perfectly. Reattach Shocks and retaining nut if you did not use a Coil Spring Compressor. If you did use a Coil Spring Compressor, carefully remove. If you did not use a Coil Spring Compressor, you may need to reattach wheels & lug nuts and slowly lower the vehicle until you can reattach the Shocks.

Disabling the Check Air Suspension light on the Instrument Cluster depends on your model year:

For 1995-1997: Open & Unhook the Glove Box from the right, squeeze the sides to release and let it hang out of your way. Behind the Glove Box, mounted to the Heater Unit is a connection with two plugs, one GRAY, one BLACK, or both GRAY, each about 2". On the BLACK or TOP connector, midway, is a GREEN wire (this is pin #11). Cut this wire to disable "Check Air Suspension" light. Cut as far from the plug as you can should it ever need to be reconnected/spliced. Reattach Glove Box.

For 1990-1994: This same plug/wire is behind the ARS/RAS Switch located in the TRUNK.

For 1998-Present: The 'Check Air Suspension' light cannot be Disabled.

Courtesy of: MotorCarriageService.com