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1999 Eldorado rear air suspension inflated to max

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Converting from the air ride suspension to the passive coil spring suspension will eliminate this problem. To fix your air system you will have to purchase the parts directly from the dealer which means the prices will be severely inflated. Check out Strutmasters website at: http://www.strutmasters.com/Cadillac-Eldorado-Air-Suspension-Rear-Conversion-R-p/-cad-r5ns-el.htm My Uncle converted his Cadillac Deville two years and has only had positive things to say about the effects! I hope this advice was of some help.

Posted on Jun 22, 2009

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Posted on Jan 02, 2017

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Ride height specification for 2002 Bravada and procedure on replacing sensors.Or where can I look on line for this information.


Air Suspension ??????

Air Suspension Description and Operation
Air Suspension
The primary mission of the Air Suspension System is the following for the rear suspension under loaded and unloaded conditions:
• Keep the vehicle visually level
• Provide optimal headlight aiming
• Maintain optimal ride height
The Air Suspension System consists of the following items:
• Air suspension compressor assembly
• Air suspension sensors
• Rear air springs
Important: The Air Suspension System must have a voltage supply of at least 12.6V to operate properly.
The Air Suspension System will maintain the rear D height within 4 mm (0.15 in) in all loading conditions and the leveling function will deactivate if the vehicle is overloaded. The side to side D height variation is maintained within 8 mm (0.31 in). After ignition is turned off, the air suspension control module (ASCM) will remain active for between 30 minutes and 2 1/2 hours. The system will exhaust pressure within 30 minutes after the ignition is turned off to lower the vehicle after unloading. In a temperature-controlled environment, the leakage of the complete load leveling system will not result in more than 1.4 mm (0.05 in) drop of rear suspension height at GVWR during a 24 hour period. If the outdoor temperature drops from +20°C (+68°F) to -5°C (+23°F), the rear D height may drop as much as 25 mm (1 in). However, the Air Suspension System should return to the specified D height when the ignition is again cycled to ON.

What is the problem ?

Diagnostic Trouble Code (DTC) Displaying
The Air Suspension system has an internal clock to prevent overheating if the compressor assembly is running for a prolonged period of time. If the system overheats, all leveling function stops until the system cools down. During this time, the indicator LED on the air inflator switch will be quickly flashing at a constant rate.
The other three diagnostic trouble codes are displayed with a blink code on the inflator switch LED. The Air Suspension Compressor Assembly shall begin to indicate the code when the condition to cause the code becomes current.
The number of the fault code shall be represented by the number of flashing pulses on the inflator switch LED. The flashing pulses shall have a repetition rate of 0.5 seconds and each code shall be separated by a 3.0 second delay. All codes shall be flashed in the order of occurrence of the fault. The blink code shall take priority over other processes that have access to the inflator switch LED. Refer to the following:
• DTC 001
• DTC 002
• DTC 003

Trim Height Uneven or Low ??????

Feb 24, 2017 | Cars & Trucks

1 Answer

I have a 04 Mercedes Benz E500 4matic and the rear air suspension is stuck fully inflated what is wrong.


pump seems to be over running or stuck at max find pump disconnect it then disconnect battery reverse procedure u should be fine . unless air hose to shocks is stopped up somehow my caddy did the same thing

Jan 19, 2017 | 2004 Mercedes-Benz E

2 Answers

If rearbag has a hole will this affect start ing? Depletes charge in new battery


You will have to turn the air ride system off until the bag is fixed. Otherwise the pump will run continuously trying to fill the bag. This will obviously kill the battery.

Feb 18, 2011 | 1999 Lincoln Town Car

2 Answers

Removing rear air suspension on GMC Envoy


Just behind right rear tire up in the wheel well. Air inlet is inside right rear quarter near the accessory inflator. Compressor runs 3 lines one for the accessory inflator and one for each air bag.
THere are also 2 sensors, one on each trailing arm that senses load and then raises and lowers accordingly.

Dec 28, 2009 | 2002 GMC Envoy XL

1 Answer

Air-spring suspension 1995 Mark Vlll Lincoln Continental.When car is turned off fornt air-springs stay inflated but sometimes rear air-springs slowly lose air but inflate after ignition switch is turned to...


Save your self the hassle and expence of troubleshooting and replacement parts, install a suspension retrofit kit which changes the rear bags to coil springs and the front to struts. A car this old you might as well start over for less than $500.00......

Sep 20, 2009 | 1995 Lincoln Mark VIII

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...


I had a 1999 Expedition. When you put the 4x4 on it raises the vehicle an extra inch or 2.
It may help to turn the 4x4 off. Two wheel drive is a lower air setting.
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.
There are adjustment solenoids on the body but you need someone qualified to repair this.

Sep 05, 2009 | 1999 Ford Expedition

1 Answer

How do i remove the rear air shocks off my 2000 lincoln town car


SECTION 204-05: Vehicle Dynamic Suspension 2000 Town Car Workshop Manual REMOVAL AND INSTALLATION Air Spring Removal
syg~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.
syg~us~en~file=ani_caut.gif~gen~ref.gif 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.
  1. syg~us~en~file=ani_caut.gif~gen~ref.gif 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. Refer to Ride Height Adjustments .
  1. syg~us~en~file=ani_caut.gif~gen~ref.gif 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.
  1. Raise and support the vehicle. For additional information, refer to Section 100-02 .
  1. Remove the rear air spring retainer (5A966).
  1. Lift the bottom of the air spring off the rear axle (4001).
  1. Remove the air spring.
    1. Disconnect the electrical connector.
    1. Compress the quick connect locking ring and pull out the air line.
    1. Remove the air spring.
Installation
  1. syg~us~en~file=ani_caut.gif~gen~ref.gif 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.
    1. Position the air spring assembly in the frame seat.
    1. Install the spring retainer clip.
  1. Seat the bottom of the air spring on the rear axle (4001).
  1. 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.
    1. Connect the electrical connector.
    1. Connect the air line.
    1. Make sure air spring is in the proper shape.
  1. Refill the air springs; refer to Ride Height Adjustments .

Apr 24, 2009 | 2000 Lincoln Town Car

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

1 Answer

Rear air bags won't go back to normal after inflating


you might try shutting the car off and starting it a few times sometimes that will help

Dec 14, 2008 | 1999 Ford Explorer

1 Answer

Rear suspension air bags will not hold inflation.


probley got a hole in it, check it if thats it. u should replace it

Nov 17, 2008 | 1999 Ford Explorer

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