Question about 2000 Ford Expedition

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1997 expedition 2 wheel drive air suspension problem

Air suspension doesnot deflate -- replaced compressor still doesnot bleed off air. what needs replacement?

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  • Anonymous Nov 20, 2008

    I have 2000 Edie Bauer, the rear suspension bags will inflate but later in the day when vehicle is off the rear drops all the way down.

  • Anonymous Nov 23, 2008

    My suspension is gone completely out I think. It doesn't go up anymore, I hate it. Anyway, I just want to trash the whole truck and start over!! I need some GOOD advice, what should I do?

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  • Ford Master
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There are ride height sensors in the rear that send a signal to the ride height/load leveling control module, one of these ,may be defective. Have Ford dealer run an active test of the system, they will find out what the part is that has failed, otherwise you are guessing, that equals wasted $$$

Posted on Nov 04, 2008

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1 Answer

Can you drive the vehicle when the rear suspension leveler is not working.


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I have a air ride suspension on my ford expedition 2001 and wonder if there's any way to manually air up the shocks to check for leaks .my ride along compressor is shot.


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How do you replace the front brake caliber on a 1997 ford expedition


Caliper Removal
  1. svj~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: Do not use heat to loosen a seized lug nut . Heat can damage the wheel and the wheel bearings.
    Loosen the lug nuts.
    1. Remove the center cap.
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      1. svj~us~en~file=ani_caut.gif~gen~ref.gif WARNING: THE ELECTRICAL POWER TO THE AIR SUSPENSION SYSTEM MUST BE SHUT OFF PRIOR TO HOISTING, JACKING OR TOWING AN AIR SUSPENSION VEHICLE. THIS CAN BE ACCOMPLISHED BY TURNING OFF THE AIR SUSPENSION SWITCH LOCATED IN THE RH KICK PANEL AREA. FAILURE TO DO SO MAY RESULT IN UNEXPECTED INFLATION OR DEFLATION OF THE AIR SPRINGS WHICH MAY RESULT IN SHIFTING OF THE VEHICLE DURING THESE OPERATIONS.
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        1. Remove the lug nuts.
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      2. CAUTION: Replace the lining if worn to or past specifications. Replace the brake shoes and linings in complete axle sets. Inspect the brake shoes and linings for wear or contamination.
      3. svj~us~en~file=ani_caut.gif~gen~ref.gif WARNING: BRAKE FLUID CONTAINS POLYGLYCOL ETHERS AND POLYGLYCOLS. AVOID CONTACT WITH EYES. WASH HANDS THOROUGHLY AFTER HANDLING. IF BRAKE FLUID CONTACTS EYES, FLUSH EYES WITH RUNNING WATER FOR 15 MINUTES. GET MEDICAL ATTENTION IF IRRITATION PERSISTS. IF TAKEN INTERNALLY, DRINK WATER AND INDUCE VOMITING. GET MEDICAL ATTENTION IMMEDIATELY.
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Mar 10, 2010 | 1997 Ford Expedition

1 Answer

What is a solenoid;


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Nov 30, 2009 | 1997 Ford Expedition

1 Answer

The rear suspension is down on my 1999 Ford Expedition - Eddie Bauer. The cause: while out in the woods I came across a small dip which cause my back left wheel to lift off the ground. The suspension...


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Your original pump may still be good. The problem can be in the front. The compressor is not filling the front suspension to the cutoff point. It will lift the rear after the front end is at running height. Since you lost the front end first, the remaining air bled out there and then the rear came down. Once you shut down the car the suspension was done, all the air was let go.
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2 Answers

99 expedition two wheel drive passenger side goes up higher than the drivers side.uneven ride! whats a ride height sensor?


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Jul 10, 2009 | 2000 Ford Expedition

1 Answer

EXPEDITION REAR AIR RIDE PROBLEM


do you have just rear air suspension? here's rear only. 4 wheel different. Deler an run a diagnostic test with WDS machine and get fault codes.
-------------------------------------------------------------------------------------
The air suspension system is designed to improve ride, handling and general vehicle performance for static, on-road and off-road driving conditions:
  • Ride is improved by using an air type spring (the soft ride is inherent).
  • Handling is improved by maintaining constant vehicle attitude.
The system consists of unique rear air springs, the air compressor, air lines, air spring solenoids, height sensor, air suspension control module, attachments and associated signals derived from both driver and road inputs. With these components and signals, the air suspension control module commands changes in vehicle height that are necessary for the load leveling features.
The load leveling feature rear air suspension (RAS) systems shall automatically make adjustments in vehicle height so that the vehicle is always at trim height and constant front-to-rear vehicle attitudes are maintained over the expected load range of the vehicle. Adjustments in height that are necessary to correct height differences between the vehicle's left and right sides for the RAS system shall be restricted to what can be reliably achieved with one air suspension height sensor.
The system uses one air suspension height sensor, a steering sensor, generic electronic module (GEM) and other vehicle sensors to measure driver and road inputs. The system changes vehicle height using an air compressor, two air lines and the use of air springs with air spring solenoids.
The air suspension system holds vehicle height when the rear hatch or any door is opened. The system stores rear vehicle height the moment any open door is detected. The system then maintains this height regardless of the addition or removal of a load. The system will return to its commanded height when all doors are closed or the vehicle speed exceeds 16 km/h (10 mph).
----------------------------------------------------------------------------------------
Air Suspension Height Sensor
One air suspension height sensor is mounted on the vehicle. The air suspension height sensor sends a voltage signal to the air suspension control module. The output ranges from approximately 4.75 volts at minimum height (when the vehicle is low or in full jounce), to 0.25 volts at maximum height (when the vehicle is high or in full rebound). The air suspension height sensor has a useable range of 80 mm (3.2 in) compared to total suspension travel of 200-250 mm (8 to 10 in) at the wheel. Therefore, the air suspension height sensor is mounted to the suspension at a point where full rear suspension travel at the wheel is relative to 80 mm (3.2 in) of travel at the air suspension height sensor. The air suspension height sensor is attached between the No. 5 frame crossmember (upper socket) and the panhard rod (lower socket).
When the air suspension height sensor indicates that the rear of the vehicle is lower than trim under normal driving conditions, the air compressor will turn on and pump compressed air to the air springs. When the sensor indicates that the rear of the vehicle is raised above trim under normal driving conditions, this will cause the air to be vented from the air springs to lower the vehicle back to its trim height level
------------------------------------------------------------------------------
  • Uneven vehicle height
  • Circuitry.
  • Rear pneumatic fault.
  • Air compressor assembly.
  • Air suspension control module.
  • Go To Pinpoint Test I .

Feb 21, 2009 | 2001 Ford Expedition

2 Answers

Where are the leveling sensors located on a 2003 Navigator?


There is one at each wheel. here is some info

Vehicle Dynamic Suspension The four wheel air suspension system is comprised of the following components:
  • service switch
  • control module
  • two front height sensors
  • one rear height sensor
  • compressor and drier assembly (includes vent solenoid)
  • air lines
  • front and rear air spring and shock absorber assemblies
  • four air spring solenoids
s3j~us~en~file=ani_caut.gif~gen~ref.gif WARNING: The service switch for the air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. This can be accomplished by turning off the air suspension switch located in the jack storage area in the rear of the passenger compartment. Failure to do so may result in unexpected inflation or deflation of the air springs which may result in shifting of the vehicle during these operations.
s3j~us~en~file=ani_caut.gif~gen~ref.gif 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.
Air Suspension Pneumatic Diagram 17d59a6.gif
Item Part Number Description 1 5319 Air compressor and drier 2 5B322 Air line T-fitting 3 5B321 Air line union 4 — Air line Y-fitting 5 18945/5311 Air spring and solenoid

Suspension Height Sensor Removal and Installation
NOTE: Front shown, rear similar
  1. s3j~us~en~file=ani_caut.gif~gen~ref.gif WARNING: The electrical power to the air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. This can be accomplished by turning off the air suspension switch located in the LH quarter trim panel. Failure to do so may result in unexpected inflation or deflation of the air springs which may result in shifting of the vehicle during these operations.
    Raise and support the vehicle. For additional information, refer to Section 100-02 .
  1. Disconnect the sensor arm. 721ed10.gif
3. Remove the bolts and the sensor. b198e3c.gif
4.
  1. Disconnect the electrical connector.
---------------------------------------------------------------------------------------------

Ride Height Adjustments
Special Tool(s) s3j~us~en~file=st2332a.gif~gen~ref.gif Worldwide Diagnostic System (WDS)
418-F224

New Generation STAR (NGS) Tester
418-F052 or equivalent scan tool
Inflation and Deflation of the Air Suspension System
  1. NOTE: Make sure that the air suspension switch is in the ON position
    NOTE: Make sure that a battery voltage of at least 11 volts is maintained while carrying out this procedure.
    Turn the ignition switch to the ON position.
  1. Connect scan tool to the data link connector (DLC).
  1. Select Air Suspension Control Module under Active Command Mode:
    • VENT FRNT to deflate the front down.
    • LIFT FRNT to inflate the front up.
    • VENT REAR to deflate the rear down.
    • LIFT REAR to inflate the rear up.
Calibration
Ride Height Resetting
  1. NOTE: Make sure that the air suspension switch is in the ON position
    NOTE: Make sure that a battery voltage of at least 11 volts is maintained while carrying out this procedure.
    Turn the ignition to the ON position.
    • Exit the vehicle, close all doors and allow the system to vent the vehicle down to kneel height (approximately 45 seconds).
  1. With the ignition remaining in the ON position, shift the vehicle into DRIVE and then back to PARK.
    • Exit the vehicle, close all doors and allow the vehicle to pump to trim (approximately 45 seconds).
  1. Measure the ride height. For additional information, refer to Section 204-00 .
  1. Open the LF door.
  1. Connect scan tool to the data link connector (DLC).
  1. While outside of the vehicle, select the proper vehicle year, model and engine type.
  1. Select 4WAS module.
  1. Using the active command mode, vent or lift the vehicle to achieve the correct ride height.
  1. Select the "Save Calibration Values (Store Ride Height)" scan tool command to calibrate the 4WAS module.
-------------------------------------------------------------------------------

Jan 09, 2009 | 2003 Lincoln Navigator

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