Question about 2003 Subaru Legacy

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The air suspension of my 2003 subaru legacy gets stuck in the hi position from time to time, i.e. will not go down when command is activated, or does it "sometimes" later without warning. If I press the switch to get it down while it is stuck hi, nothing happens. If I press the switch again, the control light on the dashboard goes on immediately, i.e. without flashing as it should while being pumped up. And then, from time to time while the is stuck hi, the light starts flasshing continuously at a high rate until I turn off the ignition. All of this probably means that the sensors are OK and that the control unit must receive some contradictory information from time to time, causing the light to flash rapidly. It also probably means that the compressor/pump is OK. I suspect a stuck discharge valve but don't know where it is located. Any idea?

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Posted on Jan 02, 2017

jcameo7270
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SOURCE: My 1993 Subaru Legacy L has a sticky gas pedal,

I would start by looking at the linkage under the hood...making sure that it is not being bound up by anything...make sure the cable that goes down to the pedal from the tbi/carb is free if nicks and does not have any holes in it or where the insulation has maybe rubbed off..if you do find the cable has damage, then I would recommend replacing at once for safe operation

Posted on May 19, 2011

  • 10 Answers

SOURCE: Hi, I have a Subaru Impreza

The light is a warning light telling you there is a fault with your braking systems you need to take it to a local garage and tell them so they can check your brakes are still working as they should

It could be your handbrake cable underneath the car it goes all the way down the car it could be loose or broke.

Posted on Aug 12, 2011

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Vehicle Dynamic Suspension The four wheel air suspension system is comprised of the following components:
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  • control module
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  • one rear height sensor
  • compressor and drier assembly (includes vent solenoid)
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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.
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