Try the website; www.manualspace.com for the diagrams

This is kind of like a check engine light, but for the steering and air suspension system. I recommend you take it to a dealer to scan for the codes, then diagnostics can be performed from there. I don't think a regular scan tool would be able to retrieve these codes.

Please do not reply by clicking "Reply". reply by clicking "Answer Question" so it will reflect in my INBOX so i can get back to you if something comes up

A vehicle that drops in height over night is a problem. The suspension will not drop unless there is a leak. Like any piece of rubber, the suspension bags have a life span. Most will last several years and well over 100,000 miles. When they do eventually wear out, they must be replaced. This is the key to preventing expensive problems. Most bags fail by developing cracks in the rubber. Air leaks through the cracks and the vehicle starts to drop after sitting. A Lincoln Town Car uses two rear bags. Both can be replaced in under an hour and for a relatively low cost. Not replaced, they will leak, cause the pump to overheat and create a very expensive repair.

No but you can opt out and get normal (non air) shocks. Cost a lot cheaper but doesnt feel as soft.

how do i put air in shocks

where is air bag pump located

where is pump located

where is pump located

Need more information - what is the 'something that pops up'? Do you feel the bounce in the front or rear of the vehicle? Several possibilities; broken / loose shock absorber, broken / loose spring mount, worn shocks or struts.

Check your suspension, it may be weak. Check also tie rod and ball joints for damaged. Replace defective parts eventually. And have a wheel and tire alignment service. Check also tire wear and rotate tires per 5000 miles.

WARNING: Do not remove an air spring under any circumstances when there is pressure in the air spring. Do not remove any components supporting an air spring without either exhausting the air or providing support for the air spring to prevent vehicle damage or personal injury.

WARNING: Disconnecting an air line that is connected to the air compressor can cause personal injury or damage to components as high pressure air is vented uncontrolled.

WARNING:
Do not attempt to install or inflate any rear air spring that has become unfolded to prevent vehicle damage or personal injury.
Failure to observe the following procedures may result in a sudden failure of the air spring or suspension system.
Any rear spring which is unfolded must be refolded prior to being installed in a vehicle.
The air spring refolding procedure should only be used for an air spring which has never supported the vehicle's weight while in the improperly folded position.
Improperly folded air springs found on vehicles during pre-delivery inspection or after use must be replaced.
Do not attempt to inflate any air spring which has been collapsed while uninflated from the rebound hanging position to the jounce stop.
When installing a new air spring, care must be taken not to apply a load to the suspension until springs have been inflated using the air spring fill procedure.
After inflating an air spring in the hanging position, it must be inspected for proper shape.

NOTE: The vehicle must be positioned on a suitable lifting device prior to deflating the air suspension system.
Vent the air suspension system.


WARNING: Before performing maintenance on any air suspension components, disconnect the power to the system by turning off the air suspension switch located on the LH side of the luggage compartment to prevent vehicle damage or personal injury.
Turn the air suspension switch off.

Raise and support the vehicle.

Remove the rear air spring retainer (5A966).

Lift the bottom of the air spring off the rear axle (4001).

Remove the air spring.
Disconnect the electrical connector.
Compress the quick connect locking ring and pull out the air line.
Remove the air spring.

Installation

CAUTION: To avoid damage to the air spring, do not allow suspension to compress before the spring is inflated.
NOTE: When installing the air lines, make sure the white air line is fully inserted into the fitting for correct installation.
Install the air spring.
Position the air spring assembly in the frame seat.
Install the spring retainer clip.

Seat the bottom of the air spring on the rear axle (4001).

NOTE: When installing the air lines, make sure the white air line is fully inserted into the fitting for correct installation.
Connect the air spring solenoid valve.
Connect the electrical connector.
Connect the air line.
Make sure air spring is in the proper shape.

check the air shocks may be leaking hoses or just bad shocks

Try this ECMs website; http://www.autoecms.com./ They list this module for your vehicle for $195.00 plus a $100.00 core charge (exchange). Try the many other on-line auto parts sources, such as: www.RockAuto.com or www.autopartswarehouse.com

I hope the diagnostic test is right because these modules fail rarely.

Why would you need steering knuckle? Replacing balls joint and toe links could be due to clunking noise in your tire section? Give us the details why would you like to replace those parts and what do you need to know? If you have check engine light, we suggest to have it scanned first and post the codes here.

Google search it, for scanner compatible with your vehicle.

The rack and pinion suggestion is referring to the steering - this would be located in the front of the vehicle. Does the noise change in pitch, or get louder / softer with speed? Have you checked the rear differential lubricant level? Try the 'Diagnose' tab on this page to assist to describe the problem.

Ball joint is serviced with the steering knuckle assembly

WHat you need to do is call this number :)

http://www.strutmasters.com/lincoln-suspension-parts-s/1.htm

1. Start with verifying the compressor operates. Go to the compressor relay in the center of the radiator core support on the engine side. Verify there is battery voltage on the Light Blue/Pink (LB/PK) wire from fuse 3 60A in the engine compartment fuse box. Also make sure the Grey (GY) wire is a good ground.

2. With the relay connected, back probe the Dark Blue/Yellow (DB/Y) wire with a jumper and touch it to ground. Battery voltage should now be present on the Purple/Orange (P/O) wire to the compressor and the compressor should be running.

3. If battery voltage is not present on the P/O wire, replace the relay. To verify the compressor runs, jump the LB/PK to the P/O. The compressor should run. Make sure the compressor does not sound abnormally loud. If it does, replace the compressor also.