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Lincoln steering & suspension repair questions and answers

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  • John
    John - 1995 Lincoln Town Car - Steering & Suspension - 1/6/2012
    "Check Air Suspension" keeps coming on after about 10-20 minutes of driving. It is gone if I shut motor off and restart
    You can hear air pump come on while driving. Car stays level. Overnight the suspension appears to hold its pressure because the car does not sink. Air bags have about 100K miles on them. Is this a computer problem or should I suspect an air leak?
     
    • Spoon Sports
      1/6/2012 Spoon Sports
      "Overnight the suspension appears to hold its pressure because the car does not sink" - Then its not a leak otherwise you car will just sag.

      1.
      Relief Valves
      *

      A Lincoln Town Car's air suspension uses a small, separate air compressor under the driver’s side left fenderwell, and air lines run to the air bags. On top of each air bag is a electrical valve that serves as a relief valve that allows air to be exhausted when activated. The valve senses the amount of air pressure within the air bag to keep both sides equal. These valves are operated via a leveling sensor that is attached to the body of the car and to the rear axle by a movable arm. When the rear of the car drops because of an increased load, the arm is pushed up, turning on the air compressor and filling the air bags to level the car. When the load is removed and the arm moves down, indicating that the back of the car has risen, the sensor opens the valve on the air bags and allows air to escape, lowering the car.
      Air-Suspension Switch
      *

      If the back of the car is low, indicating that the air suspension is not working, and the air suspension light is on, check the fuse. If the fuse is all right, make sure the air-suspension switch in the trunk is on. This switch is used when the car is in for service. Always turn off the switch before lifting the car, because the sensor will think the car is rising and keep the air bag valves open, ruining the rear air suspension.
      Switch Terminals
      *

      Turn the ignition key with the engine off, and listen for the compressor to come on while pushing down on the rear bumper. If it does not come on, test the switch terminals for power with a circuit tester. If one terminal has power and the other does not, replace the switch.

      If there is power, turn the switch to the "Off" position, raise the vehicle and place it on jack stands in the rear. Inspect the leveling switch on the axle, making sure it is not bent and is connected. Use an ohmmeter for this test. Pull the electrical connector off the switch. Loosen the arm of the switch from the axle. Test the switch with the ohmmeter by checking across both terminals while slowly moving the arm. There should be no continuity with the arm down. As the arm is raised, there should be continuity. If not, replace the switch. If there was continuity, connect the arm and the electrical connector.
      Check for Power
      *

      Put a floor jack under the axle and raise the axle so it is just beginning to lift the car off the jack stand. Turn on the ignition. Turn the air suspension switch to the "On" position. Use the circuit tester to check for power at the leveling switch. If there is power, turn the air-suspension switch to "Off" and lower the car.

      Access the air compressor in the front, under the hood, and check the electrical connector for power. If there is power, check for a good ground. If both are good, replace the compressor. If the compressor works and the car does not rise in the back, replace the air bags.
  • rfitzgerald
    rfitzgerald - 1996 Lincoln Town Car - Steering & Suspension - 1/1/2012
    If I change from air suspension to rear shocks on my 1996 Town Car, will the ride be as good as air suspension.
    The "check air suspension light is on".
     
    • Jimm
      1/1/2012 Jimm
      The ride will be different - whether it is as 'good' is fairly subjective. There are shock absorber kits available to convert the air suspension to more conventional hydraulic or gas-filled shock absorbers.
      Monroe Part # 90003 Air Spring to Coil Spring Conversion Kit - is one such kit for around $147.00 from www.RockAuto.com among other auto parts sources.
    • HouseCallAuto
      1/1/2012 HouseCallAuto
      Probably your Town Car just needs new air springs. Do you still hear the compressor turn on? If not check the fuse for being open. If it runs and the car pumps up when it is started but sinks after the car is parked for a while, replace the air springs. They can be had from Strutmasters.com for $84 each.
  • nestor
    nestor - 1999 Lincoln Navigator - Steering & Suspension - 12/30/2011
    1999 lincoln navigator. too hgh and doesn't lower.
    I thing is a leveling switch but I am not sure. Than you in advance
     
    • Jay Giron
      12/30/2011 Jay Giron
      The rear height leveling sensor could be the cause of your problem.
      Some people rather convert to coils.
  • norma
    norma - 2001 Lincoln Navigator - Steering & Suspension - 12/30/2011
    What can i do about my back air suspension i was told that i can get a strut kit. whats the best kind?
    158,000 I haven"t had anything done related to this problem. When i drive my suv it bounces very badly the ck supension light is on. this problem just started last saturday.
     
    • Jay Giron
      12/30/2011 Jay Giron
      Try changing the rear height leveling sensor if you want to keep the air ride struts. If not
      REPLACE THE AIR BAGS WITH THE SAME YEAR FORD EXPEDITION REAR COILS.
  • Jill Cox
    Jill Cox - 1998 Lincoln Mark VIII - Steering & Suspension - 12/23/2011
    When hitting speed of 55mph unit feels like it is swaying all over with little control .what could cause
    I just had 2 used front tires put on but they didnt turn off the air suspension ride button in back could this cause damage or this. and also about 8 months ago i had a cv joint replaced.
     
    • Jay Giron
      12/23/2011 Jay Giron
      Could be:
      - Your tires need balancing.
      - You have a bad set for tires.
      - Tie rod ends are worn out and they need to be replaced.

  • Greg
    Greg - 2000 Lincoln Navigator - Steering & Suspension - 12/22/2011
    My car is 1/4 inch lower on the driver side. How do I repair?
    When I turn off the car it will lower a bit but not all of the way and it is still 1/4 inch lower on the driver side. I have replaced the front air shocks and the back shocks no difference still 1/4 inch shorter.
     
    • HouseCallAuto
      12/22/2011 HouseCallAuto
      If that is all the problem, you are measuring and just 1/4" difference, this small amount is insignificant. Do nothing. If it really is making you crazy you can adjust the torsion bar to raise or lower the front left and front right sides. Just turn the bolt enough to even it out.
  • Ed
    Ed - 1993 Lincoln Town Car - Steering & Suspension - 12/14/2011
    How do I repair Air Suspension system
     
    0 answer
  • Levi
    Levi - 2003 Lincoln Navigator - Steering & Suspension - 12/13/2011
    HOW DO YOU REPLACE AUTO LEVELING PUMP FOR SUSPENSION
     
    • Spoon Sports
      12/13/2011 Spoon Sports
      You mean the compressor?

      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.
      Spoon Sports
      2/7/2012 Richard
      Can someone tell me where the solenoid valves are located for a 2004 Lincoln Navigator. I believe mine are defective since they will not allow air from the dryer to pass.
      Spoon Sports
      2/10/2012 Spoon Sports
      Please post this as a new question. Thanks Im sure the original asker doesnt want his post to be "hijacked" thanks
  • eileenstacy
    eileenstacy - 1998 Lincoln Mark VIII - Steering & Suspension - 12/6/2011
    What happens when a ball joint goes out and how does it relate to the sway bar and righ control arm
    parts replaced left front in Tie Rod end, left rear up crtl arm bushkit right front control arm, radius arm bush kit frt, sway bar link kit frt , I was driving car the right front end dropped the tire to inside fender well and was completely un driveable. Bolt ...
     
    • Spoon Sports
      12/6/2011 Spoon Sports
      "Bolt laying on ground What happened and why" - As far as i know all ball joints use a castle nut with a cotter pin, the only way i can think of of newly installed parts breaking down is a mis-installation (Probably bolts werent tightened or the cotter pin wasnt installed.
  • Brett
    Brett - 2000 Lincoln Navigator - Steering & Suspension - 12/3/2011
    After driving a distance I notice a burning smell and the front end binds when turning. This is all wheel.
    Can there be something wrong with the transfer case?
     
    • Navigator man 5.4
      12/3/2011 Navigator man 5.4
      make sure that your parking brake is not engaged sometimes when iget in navigatot my foot hits parkring brake now the binding part is another thing is your check susp light on
      Navigator man 5.4
      12/4/2011 Brett
      parking brake is off and the check sup light does come sometimes thanks
  • jim lembesis
    jim lembesis - 1996 Lincoln Town Car - Steering & Suspension - 11/22/2011
    How do I replace the idler arm?
    severe squeeling noise when turning and from a stop backing out of driveway
     
    • Spoon Sports
      11/22/2011 Spoon Sports
      What You'll Need:


      •18mm - 1/2 drive wrench and socket
      •Pitman arm puller
      •5/16 - 1/2 drive Socket and a long breaker bar / pipe
      •11/16 and 5/8 - 1/2 drive socket and wrench
      •Torque wrench that goes to 180 ft lbs
      •Diag wire cutter
      •Flat head screwdriver
      •Needle nose pliers
      •Jack stands and a floor jack
      •Grease
      •2 Cotter pins 1/8 x 1-1/2
      •New Idler arm

      Jack your car up then follow this link.

      http://autorepair.about.com/.../...ler-replace_3.htm
  • Bea Scarberry
    Bea Scarberry - 2007 Lincoln Navigator - Steering & Suspension - 11/21/2011
    My "check air suspension" light is coming on. What does this mean?
    That's all is lighting up on dash.
     
    • HouseCallAuto
      11/21/2011 HouseCallAuto
      It means there is a malfunction of the air suspension and it also means that there is fault code data stored that can be accessed by a mechanic with a compatible acanner. The codes stored dictate the course of diagnostic and repairs. Not a DIY type repair. Whoever fixes it, ask them if their scanner can communicate with a 2007 Lincoln air suspension module before you give them the vehicle to fix.
  • sicancu
    sicancu - 1999 Lincoln Continental - Steering & Suspension - 11/7/2011
    My auto air shocks are getting bad. can i switchover to regular shocks?
    vehicle has 140,000 miles and seems silly to spend 1500 dollars to replace electronic leveling shocks on a car with so many miles. i would like to switch to regular shocks. is this doable?
     
    • HouseCallAuto
      11/7/2011 HouseCallAuto
      Yes, go to Strutmasters.com for info about what options you have for this model.
      HouseCallAuto
      11/8/2011 sicancu
      will do. thanks for the help.
  • mondukk
     
    • Jimm
      11/6/2011 Jimm
      Try the many on-line auto parts sources, such as; www.RockAuto.com or www.autopartswarehouse.com for the necessary parts for the suspension conversion. You may also try a local salvage yard in your area for some of the used parts to save cost.
      Jimm
      11/6/2011 mondukk
      ok thanks. also i was told all i need is coil springs and shocks do you think or know it that all i need.
    • HouseCallAuto
      11/6/2011 HouseCallAuto
      You want to go to StrutMasters.com
 
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