Question about 2003 Lincoln Navigator

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I have a 2003 Navigator. The problem is very

I have a 2003 Navigator. The problem is very similiar to what I have read others post. The air suspension will not engage on my front passenger side, however the air appears to being diverted the 3 other wheels. Now when I shut off the vehicle, the air is not escaping like normal from these "airbags". I need to know if there is a way to reset/release the air manually. 1) I am afraid of anymore air going to those 3 wheels. 2) my driver side is so jacked, I am afraid it my scrape my garage door backing out.

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  • zratcliff Dec 11, 2009

    The link provided was a great overview of how the system works and if I had a large garage and hydraulic lift, I might take a stab at some of the diagnostic tests. However, I have a little 1 car garage that barely fits the Navigator. I need to know if there is a release mechanism to reset/release the air from the air springs. As is, I am afraid of two things if I turn my Navigator back on 1) backing out of my garage, I will scrape the top of the Navi roof on the garage. 2) if the other three air springs (which have not release air like normal) get any more air pumped to them - it will either damage the air springs or overload the compressor.

  • zratcliff Dec 11, 2009

    Very thorough and will share with auto shop.

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  • Lincoln Master
  • 17,970 Answers

Do you check the old questions? as, this: Air Suspention Works Abnormaly


Posted on Dec 11, 2009

  • 1 more comment 
  • ZJ Limited
    ZJ Limited Dec 11, 2009

    I found this TSB about the air suspension light being on, but it looks
    as if it pertains to our two cars... Note that it only calls for a half
    an hour on 4X4.



    Article No. 01-12-8 06/25/01



    ^ SUSPENSION - AIR SUSPENSION - DIAGNOSTIC TROUBLE CODES (DTC'S) B2140 OR C2140 - RIDE HEIGHT RESET PROCEDURE



    ^ ELECTRICAL - LAMP - AIR SUSPENSION LAMP ILLUMINATED - DIAGNOSTIC TROUBLE CODES (DTC'S) B2140 OR C2140 - RIDE HEIGHT RESET PROCEDURE



    FORD: 1997-2001 EXPEDITION



    LINCOLN: 1998-2001 NAVIGATOR



    ISSUE

    Some vehicles may exhibit a check suspension lamp ON with Diagnostic
    Trouble Codes (DTC's) B2140 or C2140 even after the Air Suspension
    switch in the upper RH kick panel has been turned on. This may occur at
    pre-delivery, following suspension service, or after Air Suspension
    module replacement. This may be caused by the ride height calibration.



    ACTION

    Adjust and/or recalibrate ride height as necessary using the NGS (New
    Generation Star) Tester. Refer to the following Service Procedure for
    details.



    OTHER APPLICABLE ARTICLES: NONE



    WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage



    OPERATION DESCRIPTION TIME



    011208A Recalibrate Ride Height 0.2 Hr.

    For Rear Air Suspension

    (R.A.S.) 4X2 Vehicles Only



    011208B Recalibrate Ride Height 0.5 Hr.

    For 4 Wheel Air

    Suspension (4W.A.S.)

    (Includes Time To Adjust

    Torsion Bars 4X4 Vehicles

    Only)



    DEALER CODING

    CONDITION

    BASIC PART NO. CODE

    5A919 42



    OASIS CODES: 206000, 304000, 390000



    I would ask your dealer about this issue. And here, there is a lot more.



    NOTE DURING PDI (PRE-DELIVERY INSPECTION) IF "CK SUSP" LIGHT IS ON,
    PRIOR TO SENDING TO SERVICE, VERIFY SWITCH IN UPPER RIGHT KICK PANEL IS
    ON. THIS SWITCH IS TURNED OFF DURING VEHICLE SHIPMENT TO PREVENT MODULE
    FROM SEEKING TRIM HEIGHT WHILE SECURED DOWN FOR TRANSPORT.



    NOTE AN INADVERTENT B2140 OR C2140 MAY RESULT IF A PARAMETER RESET
    (CLEAR RIDE HEIGHT) IS SELECTED UNDER NGS ACTIVE COMMANDS, THEN
    CANCELLED OUT.



    NOTE THE AIR SUSPENSION CONTROL MODULE PART NUMBER IS INTERCHANGEABLE
    BETWEEN THE REAR AIR SUSPENSION (RAS) AND 4-WHEEL AIR SUSPENSION (4WAS)
    SYSTEMS, BUT ONCE THE MODULE IS INSTALLED, THE VEHICLE WILL THEN
    DETERMINE WHETHER VEHICLE IS 4X2 (RAS) OR 4X4 (4WAS) BASED ON VEHICLE
    HARNESS INPUTS.



    NOTE MODULES ARE PRE-PROGRAMMED TO SEEK 2.66 VOLTS + 1.02 VOLTS FROM
    REAR HEIGHT SENSOR (RHGSTEN PARAMETER IDENTIFIER OR PID) AT TRIM
    HEIGHT. HOWEVER, A NEW OR SWAPPED MODULE REQUIRES CALIBRATION PER STEPS
    BELOW TO CLEAR A 2140 (INITIALIZATION FAILURE) CODE.



    NOTE PERFORM 4WAS-AIR SUSP/EVO (ELECTRONIC VARIABLE ORIFICE STEERING)
    SELF TEST AND MAKE NECESSARY REPAIRS FOR ANY OTHER AIR SUSPENSION DTC'S
    THAT ARE PRESENT BEFORE ADDRESSING B2140/C2140.



    WARNING

    WARNING :BEFORE REPLACING ANY AIR SUSPENSION COMPONENTS, HOISTING,
    JACKING, OR TOWING, DISCONNECT POWER TO THE SYSTEM BY, TURNING OFF THE
    AIR SUSPENSION SWITCH LOCATED IN THE RIGHT KICK PANEL AREA TO PREVENT
    VEHICLE DAMAGE OR PERSONAL INJURY.



    RAS ONLY - CLEAR 2140



    NOTE EVEN RAS (4X2) EQUIPPED VEHICLES REQUIRE STORING RIDE HEIGHT AND
    TOGGLING FRONT TO "ON" TO CLEAR A CK SUSP LIGHT/214O CODE. THIS ALLOWS
    THE MODULE TO STORE THE VOLTAGE WITH NO FRONT HEIGHT SENSOR PRESENT,
    AND MUST BE DONE EVEN WITH CONVENTIONAL (STEEL COIL) FRONT SUSPENSION.



    1. Enter 4WAS active commands and trigger on SAVE CAL (Store Ride Height).



    NOTE YOU MUST DISREGARD WARNING THAT FURTHER ACTION PERMANENTLY WRITES TO THE MODULE AND TRIGGER THROUGH.



    2. Trigger through the NGS warning message. NGS screen will now split
    with active commands on the LH side of screen and any PIDS selected on
    the right.



    3. Toggle FRONT to "ON", press Cancel.



    NOTE CANCEL MUST BE SELECTED TO COMPLETE THE OPERATION. DO NOT SAVE OR CLEAR REAR RIDE HEIGHT.



    4. Retrieve and clear continuous DTC's; at this point a 2140 code
    should be present. Press NGS # 7 keypad button located directly
    underneath the word "CLEAR" on the LCD screen, depress trigger per
    screen prompt, and wait for message stating "system passed - no DTCs
    available". Earlier NGS software revision levels may require repeating
    these steps several times before a system pass message is received.



    5. Cancel out of continuous test in Step # 4 after receiving pass code
    message. Select on-demand self test, trigger, press NGS # 3 keypad
    button located directly underneath the word "START" on the LCD screen.
    Note on-screen instructions to prepare vehicle for test/function then
    trigger to begin the test. You should hear underhood noise from
    compressor and relays indicating this functional (on-demand) test is in
    process. As test completes, verify a "system passed" message is
    received.



    6. Cancel out of on-demand test, remove NGS tester, start vehicle and verify the check suspension indicator remains off.



    continue...



  • ZJ Limited
    ZJ Limited Dec 11, 2009




    4WAS - CLEAR 2140 DTC - Mechanical






    NOTE OBSERVE AND REPAIR ANY DAMAGED PARTS OR SYSTEM LEAKS, INSPECTING
    THE AIR LINE UNION LOCATED UNDER THE BRAKE MASTER CYLINDER FIRST. IF
    BRAKE FLUID HAS DAMAGED THE LINE, REPLACE THEN REROUTE NEW AIR LINE
    AWAY FROM AN ORIENTATION DIRECTLY UNDER THE MASTER CYLINDER. BRUSH A
    SOAPY WATER SOLUTION ON REMAINING SYSTEM CONNECTIONS, INCLUDING INLINE
    AND "T" UNIONS; AIR LINE RUB POINTS; COMPRESSOR FITTINGS; GATE AND FILL
    SOLENOIDS; AND AIR SHOCKS/SPRINGS. KEEP IN MIND THAT AIR SPRING LEAKS
    WHERE THE BAG FOLDS OVER ITSELF MAY NOT BE IMMEDIATELY OBVIOUS WITHOUT
    CYCLING THE SUSPENSION THROUGH DIFFERENT HEIGHTS. IF AIR BUBBLES ARE
    DETECTED, REPAIR AS NECESSARY THEN RETEST TO ENSURE LEAK-FREE
    CONNECTIONS BEFORE COMPLETING THE STEPS BELOW.





    1. Bring the vehicle to kneel height by turning ignition key off, gear
    lever in park, doors closed for up to 30 seconds on level ground.
    Listen for compressor's vent solenoid to release air from lines before
    proceeding. Venting should occur within approximately one minute of
    closing all doors with the key in the "off" position.





    2. Erase the module's memory:





    ^ Trigger 4WAS active commands, PARAMETER RESET (Clear Ride Height)





    WARNING DO NOT RESET REAR HEIGHT AT THIS TIME!





    ^ Trigger thru warning message, then toggle FRONT CLR from "OFF" to "ON" Press Cancel





    NOTE CANCEL MUST BE SELECTED TO COMPLETE THE OPERATION!





    3. You have now cleared the front kneel voltage stored in the module and B2140 will be present on next key-up.





    4. Bleed air from front shocks:





    ^ Mark existing torsion bar setting, then back off the torsion bar
    adjustment bolt several turns (until approximately 40 mm (1.5")
    distance from the bolt head to the bottom surface of the torsion bar
    adjuster is reached)





    ^ Select AIR SUSP CNTRL from active command menu (NGS will return to this after previous steps)





    ^ Trigger VENT FRONT, then wait several seconds for air to vent. Press Cancel to exit.





    5. Adjust torsion bars per Workshop Manual section 204-01B.





    NOTE LEAVE THE NGS CONNECTED IN ACTIVE COMMAND MODES (ENTERED IN STEP
    4) 50 THE SYSTEM REMAINS IN DIAGNOSTIC MODE AND NOT OPERATIONAL MODE.





    6. Finish by performing the following electrical front height reset steps.








    4WAS - CLEAR 2140 DTC - Electrical






    1. Enter 4WAS active commands and trigger on SAVE CAL (Store Ride Height).





    NOTE YOU MUST DISREGARD WARNING THAT FURTHER ACTION PERMANENTLY WRITES TO THE MODULE AND TRIGGER THROUGH.





    2. Trigger through the NGS warning message. NGS screen will now split
    with active commands on the LH side of screen and any PIDS selected on
    the right.





    3. Toggle FRONT to "ON". press Cancel.





    NOTE CANCEL MUST BE SELECTED TO COMPLETE THE OPERATION. DO NOT SAVE OR CLEAR REAR RIDE HEIGHT.





    4. Retrieve and clear continuous DTC's; at this point a 2140 code
    should be present. Press NGS # 7 keypad button located directly
    underneath the word "CLEAR" on the LCD screen, depress trigger per
    screen prompt, and wait for message stating "system passed - no DTCs
    available". Earlier NGS software revision levels may require repeating
    these steps several times before a system pass message is received.





    5. Cancel out of continuous test in Step 4 after receiving pass code
    message. Select on-demand self test, trigger, press NGS # 3 keypad
    button located directly underneath the word "START" on the LCD screen.
    Note on-screen instructions to prepare vehicle for test/function then
    trigger to begin the test. You should hear underhood noise from
    compressor and relays indicating this functional on-demand test is in
    process. As test completes, verity a "system passed" message is
    received.





    6. Cancel out of on-demand test, remove NGS tester, start vehicle and
    verify the check suspension indicator remains off and vehicle height
    settles out as compressor fills air bladders/shocks.





    NOTE FOR OTHER AIR SUSPENSION CONCERNS, REFER TO THE APPROPRIATE
    WORKSHOP MANUAL SECTIONS: 204-05A FOR VEHICLE DYNAMIC SUSPENSION -
    REAR, OR SECTION 204-05B FOR VEHICLE DYNAMIC SUSPENSION - 4 WHEEL.





    I realize this is a lot of info, but I wanted you to have some ammo
    when talking to the dealer. Guess what, this might be what we are
    after... I understand that you have had a lot of repairs done to the
    air ride so this might be the issue.



    continue...


  • ZJ Limited
    ZJ Limited Dec 11, 2009

    Article No. 03-9-2 05/12/03







    ^ SUSPENSION - REPEAT AIR SUSPENSION COMPRESSOR DRIER FAILURES







    ^ ELECTRICAL - REPEAT AIR SUSPENSION COMPRESSOR DRIER FAILURES







    FORD: 1997-2002 EXPEDITION







    LINCOLN: 1998-2002 NAVIGATOR



    Article 03-7-9 is being republished in its entirety to update the Service Procedure.







    ISSUE



    Some 1997-2002 Expedition 4X4 and 1998-2002 Navigator 4X4 vehicles
    equipped with 4-wheel air suspension, may exhibit repeat air compressor
    drier failures. The drier cap may become detached from the drier body,
    or the drier body may be broken at the neck near the compressor head.
    This may be due to incomplete or incorrect system diagnosis that leads
    to replacement of only the original air suspension compressor, despite
    the fact that the compressor is not the root cause of the concern.
    Compressor failure in these instances is only a symptom of an
    underlying system problem.







    ACTION



    Refer to the service information contained in this TSB for information
    on proper diagnosis of system issues. Be sure to check the system for
    proper pneumatic function as described during service to ensure a
    robust repair.







    SERVICE INFORMATION



    Overview







    Proper pneumatic function can be tested by verifying that both the
    front AND the rear of the vehicle can be raised and lowered one inch
    using a scan tool, and by monitoring the height sensor PIDs for
    movement while the vehicle is in the service bay. If the vehicle does
    not raise and lower normally, check the solenoid valves and air lines
    for blockages and/or restrictions. Replace any blocked or restricted
    solenoids and air lines. ALWAYS check for proper pneumatic function
    before returning the vehicle back to the customer.







    NOTE DISCONNECTING AN AIR LINE THAT IS CONNECTED TO THE AIR COMPRESSOR
    CAN CAUSE PERSONAL INJURY OR DAMAGE TO COMPONENTS AS HIGH PRESSURE IS
    VENTED UNCONTROLLED.







    If diagnostics lead to compressor/dryer assembly replacement, use the
    following service procedure to insure complete and thorough service.







    1. Using the New Generation STAR (NGS) tester, vent the compressor/drier assembly.







    2. Using regulated shop air, blow out the air lines from the drier to
    the front fill solenoid valve and from the drier to the rear fill
    solenoid valve, before installing the new compressor assembly.







    3. Replace the air suspension compressor assembly. Refer to Workshop
    Manual Section 204-05 for compressor installation instructions.







    4. Replace the front fill solenoid. Refer to Workshop Manual Section
    204-05 for replacement instructions. The front fill solenoid must be
    replaced because in these cases, it may have sustained damage from the
    drier desiccant or other contaminants.







    5. Connect the New Generation STAR (NGS) tester to the vehicle while
    the vehicle is parked in the service bay with the engine running.







    6. Install a pressure gauge capable of reading 400 PSI at the front air
    line (Figure 1). Using the scan tool, command the compressor ON. Check
    the output of the compressor on the gauge:







    a. If the compressor does not output at least 110 PSI within 30 seconds, replace the compressor again and retest.







    NOTE VERIFY THAT THE SUSPENSION RAISES PROPERLY.







    7. Using the scan tool, command the front of the vehicle to raise up
    one inch. The front suspension should rise one inch in 25 seconds or
    less.







    a. If the compressor output is near 300 PSI, check4or air line or
    solenoid restrictions, repair as necessary and retest. Otherwise,
    proceed to Step 7b.







    NOTE SUSPENSION UPWARD MOVEMENT CAN BE VERIFIED BY MONITORING EITHER OF
    THE FRONT HEIGHT SENSOR PIDS, WHICH SHOULD DECREASE BY .35 TO .45 VOLTS.







    b. If the front of the vehicle DOES NOT raise, check the front
    pneumatic system for leaks, inoperable or blocked solenoid valves or
    pinched air lines. If an issue is found, repair as required and repeat
    Step 7 to verify proper operation.







    c. If no problem found, continue to Step 8.







    NOTE VERIFY THAT SUSPENSION PROPERLY.







    8. If the front of the vehicle DOES raise, use the scan tool to command
    the front of the vehicle to lower one inch. The front suspension should
    lower one inch in 20 seconds or less.







    NOTE SUSPENSION DOWNWARD MOVEMENT CAN BE VERIFIED BY MONITORING EITHER
    OF THE FRONT HEIGHT SENSOR PIDS, WHICH SHOULD INCREASE BY .35 TO .45
    VOLTS.



    a. If the front of the vehicle DOES NOT lower, check the front
    pneumatic system for leaks, inoperable or blocked solenoid valves, an
    inoperable vent solenoid, or pinched air lines. Repair air lines or
    replace solenoid valves as required.






    9. Repeat Steps 7 and 8 for the rear. Command the rear of the vehicle,
    and monitor the rear height sensor PID. Voltages should increase when
    the vehicle is lowered, and decrease when the vehicle is raised. If the
    rear of the vehicle does not raise and lower as commanded, inspect the
    rear pneumatic system for leaks, inoperable or blocked solenoid valves,
    an inoperable vent solenoid, or pinched air lines, and repair as
    necessary.






    10. If the vehicle raises and lowers normally in both the front and the rear, test drive the vehicle to confirm the repair.







    Parts Block



    OTHER APPLICABLE ARTICLES: NONE



    SUPERSEDES: 03-7-9



    WARRANTY STATUS: INFORMATION ONLY



    OASIS CODES: 203000, 304000







    This is the largest response I have ever written. I sure hope it helps.


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