Question about 2001 Ford Expedition

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EXPEDITION REAR AIR RIDE PROBLEM

I have a 1999 expedition eb with air ride the system work but my truck is leaning to the driver side i deflated the system and turned it back on the rear inflated together until the last click then the right rear bag inflates higher then the left causing to lean then the ck susp light comes on what could this be?
Thanks!

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  • Anonymous Mar 26, 2009

    I have a 2000 Expedition and want to replace the air springs with regular conventional coil springs. How can I do this as a permanent solution to the current air springs which has the vehicle leaning to the left.

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  • Ford Master
  • 4,369 Answers

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.
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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).
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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
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  • Uneven vehicle height
  • Circuitry.
  • Rear pneumatic fault.
  • Air compressor assembly.
  • Air suspension control module.
  • Go To Pinpoint Test I .

Posted on Feb 27, 2009

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My 2000 Expedition Eddie Bauer gets lower in the rear after the truck is parked and the engine is off. When I start the engine and all doors are closed it begins to level out in the rear. What is the...


This is normal operation for this vehicle, the air in the air ride suspension system is designed to do this. After the vehicle sits, the air ride suspension will slowly release the pressure in the system until the vehicle is started again, and the air ride will level itself out again.

Hope this helps...

Sep 05, 2011 | 2000 Ford Expedition

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I changed my air compressor for my air ride suspension and now i have no power to my compressor. i changed the compressor relay as well.


check the fuses and the switch in drivers side rear compartment to make sure there is power to it.

Feb 17, 2011 | 1999 Ford Expedition

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check for a kink in the air line to the bag or improper installation.

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


height sensor is a sensor that control air compressor on air shock.it keep vechicle level.if height sensor senses distance between frame and suspension .it will admit air to shock by controling the air compressor.check the air shock on driver side.BESURE TO TURN OFF ELECTRICAL POWER TO AIR SUSPENSION BEFORE RAISING VECHICLE.

Jul 10, 2009 | 2000 Ford Expedition

1 Answer

Air shocks not working on rear of my expedition


Your right, could be a fuse, but it might also be the air ride linkage thats connected to the air ride motor broken or fallen off either the motor itself or fallen/broken off the rear axle. go to the rear underside of the truck and inspect this area to see if the linkage is still intacked. it could also be a worn/bad air pump.

May 31, 2009 | 2000 Ford Expedition

2 Answers

98 EB expedition rear end wont stay raised when truck is off


you have a leak somewhare in the system, i would check the suspinsion air bags on the rear first cause thay dry rot over time and start leaking

Jan 25, 2009 | 2000 Ford Expedition

1 Answer

Rear Suspension 2002 Ford Expedition


they make aftermarket spring kits for air ride removal. you can also get used parts from an expedition without air ride. My personal opinion there isn't a great difference in ride quality the only advantage the air ride has is that it will raise the vehicle ground height when in 4x4

Nov 25, 2008 | 2002 Ford Expedition

1 Answer

1997 expedition 2 wheel drive air suspension problem


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 $$$

Nov 04, 2008 | 2000 Ford Expedition

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