Question about 2001 Pontiac Montana

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Air line from rear suspension air pump hanging loose

I have a 2001 Montana and the rear air pump for the suspension continuosly runs when my whole family is in the van. I looked underneath and found what appeared to be a loose hose about 9 inches long just dangling. The end of the hose looked like it was attached to some fitting somewhere, but I could not locate anywhere that it might have hooked up to. it comes off a tee fitting right next to the pump at the rear drivers side underneath the van. One of the other hoses near the tee is also split so I want to replace that also, but as for the shot length, I do not know where it goes. Where can I find a diagram that shows me where the hoses hook up to?

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  • Walter Darmohray Apr 19, 2009

    I found out where the hose went. It was actually a vacuum hose that went to the top of the compressor where I could not see from the bottom. I ended up dropping the compressor where I found out my other problem. One of the pressure lines that runs to the shocks was broken. The tappered compession fitting that is attached to the end of the line broke off and the line will not remain attached to the T fitting without slipping out of the connector. To top it off GM uses a clip to attach the air line to each component instead of a threaded nut. Bottom line, Ineed to go to the dealer to get the lines or replace the shocks all together. Since they are new shocks from the dealer, I don't want to do that.

  • Mike Butler
    Mike Butler May 11, 2010

    They always get you one way or another eh ? I wouldn't expect that to be too ridiculous as far cost of repair goes.

  • Mike Butler
    Mike Butler May 11, 2010

    One hose from pump should go to a "T" then from each end of "T" to right & left leveler. usually on top of Shock or bag.

  • Arthur Scott
    Arthur Scott Sep 03, 2012

    ok my sister has a 1999 montana i have lookied up a little info on it tosee how it is ran so far from what i seen i sthere is a hose from the pump to a T then a hose back on to the other side of the pump off of the T on leads to the left rear shock if you look under the rear of the van where the spare goes there is a plastic line that is coming from the pump to the right side shock the left side has a clip that goes from the pump to the shock i hope that is helpful to you i am actually gonna put the new lines on today so good luck and i hope this helped as its gonna help me out

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Posted on Jan 02, 2017

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SOURCE: I have a 1996 Pontiac Transport with the rear air

The hoses go to the side of the rear struts and one goes to the tire inflator ..not sure of the routing but I know thats where they end..One on each strut and inflator

Posted on Jan 21, 2010

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Air bag pump is running, new airbags . rear bags wont air up.


These Lincoln air suspensions are terrible. I have converted many over to coil springs at a fraction of the cost of replacing/repairing the bags. If the rear bags don't inflate, there is a broken air line to the bags or the bags are leaking

Apr 12, 2015 | 2001 Lincoln Navigator

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Sep 20, 2012 | 2001 Ford Expedition

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There is some kind of pump on the rear drivers side near the spare tier what is it and why is it makeing a loud vib sond?


Your vehicle is apparently equipped with Automatic Level Control Suspension (ALC). The thing you hear running in the rear driver's side is the air compressor that pumps up your air suspension. It is normal for this to run occasionally. Sometimes they seem a little loud. That's why they mounted it all the way in the rear and used rubber bushings to secure it...so you won't hear it running while you are driving. If it is running too much, it can be a sign that your air suspension components have air leaks. If it seems to run constantly, you need to get your suspension system checked because the pump will burn itself up trying to keep the leaky suspension inflated. VERY common as well as VERY EXPENSIVE to fix if not taken care of promptly.

If it just runs for a minute or two and shuts off and doesn't come back on for a long time, don't worry about it - this is normal. It SHOULD run for a while if you have the ignition key turned on and you load something heavy in the back of the vehicle.

May 04, 2011 | 2000 Pontiac Montana

1 Answer

The rear end stays up untill you take air line loose let air out it will go down but will come up again in a few days


this sounds like the load leveling sensor at the rear of the car is not working or gets stuck in the low position causing the air compressor to pump air into the rear suspension,or it is defective and needs replacing.

Apr 20, 2011 | 1998 Cadillac DeVille

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Cold start only. loud whirring noise for about 7 seconds then wind down of noise to quiet. someone thought of motor for rear suspension air shocks problem. ?


It probably IS the air shocks. Sounds like you have a leaky system. If they sit overnight and loose pressure, the first thing they do is pump air to level out the car. You'll need to get it up on a hoist and check the lines. No big deal. They are just plastic lines and sometimes break or split and have a loose connection.

Nov 23, 2010 | 2001 Cadillac DeVille

1 Answer

Dash-board Warning Light says "CHECK AIR SUSPENSION". So, I've tried pushing that AIR SUSPENSION SWITCH inside the trunk; but nothing happens = the Rear End of my 1997 Grand Marquis is still "hanging" LOW....


the drier on the pump needs to be replaced every few years, but few people ever do. you could have a leaky bag if the pump runs a lot, or the pump fuse might be blown, or the drier clogged. the switch in the trunk is only for when you raise the car on a lift, leaving the rear axle hanging.

Sep 04, 2010 | 1997 Mercury Grand Marquis

1 Answer

Where can i get a copy of the parts that make up the air suspesion of my 2001 grand marquis. sometime it works and other time it will not.


Vehicle Dynamic Suspension The vehicle dynamic suspension consists of the following components:
  • Rear air suspension control (RAS) module (5A919)
  • Snorkel
  • Drier
  • Air compressor (5319)
  • Air suspension switch (5K761)
  • Solenoid valve (5311)
  • Air spring (5560)
  • Air suspension height sensor (5359)
  • Air line
------------------------------------------------
Visual Inspection Chart Mechanical Electrical
  • Restricted suspension movement
  • Excessive vehicle load
  • Cut, severed, or crimped air line(s)
  • Damaged air spring(s)
  • Height sensor damage
  • Height sensor mounted incorrectly, disconnected, or damaged
  • Central junction box (CJB):
    • Fuse 5 (15A)
  • Battery junction box (BJB):
    • Fuse 8 (30A)
  • Loose or corroded connectors
  • Air suspension switch OFF


The air suspension control module is diagnosed using Super Star II Tester 418-F045 (007-0041B) or equivalent.
The test connector used to communicate with the air suspension control module is located on the RH side of the luggage compartment.
When the tester is connected, the engine is started and the HOLD/TEST button is latched down, the air suspension control module will respond sending a code 10 to the Super Star II Tester which represents "Diagnostics mode entered." If diagnostic trouble code (DTC) 10 is not displayed, go to Pinpoint Test A.
Air Suspension Control Module Diagnostic Trouble Code (DTC) Index
Condition Possible Sources Action
  • No communication with the air suspension control module
  • CJB Fuse 5 (15A).
  • BJB Fuse 8 (30A).
  • Circuitry.
  • Air suspension control module.
  • GO to Pinpoint Test A .
  • Unable to enter auto test
  • Air suspension control module.
  • Circuitry.
  • GO to Pinpoint Test B .
  • Rear air suspension does not respond to load changes
  • Circuitry.
  • Air compressor.
  • Air compressor inlet tube.
  • Air compressor drier.
  • Air suspension height sensor.
  • Air suspension control module.
  • GO to Pinpoint Test C .
  • Rear rides low/high
  • Circuitry.
  • Air spring solenoid.
  • Air suspension height sensor.
  • Air suspension control module.
  • GO to Pinpoint Test C .
  • Poor ride quality
  • Circuitry.
  • Air springs.
  • GO to Pinpoint Test C .
  • Air suspension warning indicator ON
  • Air suspension switch OFF.
  • Place the air suspension switch in the ON position.
  • Air suspension control module.
  • Circuitry.
  • GO to Auto Test.
  • Instrument cluster (conventional cluster) or lamp warning module (electronic cluster).
  • REFER to Section 413-01A (conventional cluster) or REFER to Section 413-01B (electronic cluster), or REFER to Section 413-01C (natural gas cluster).


Sep 25, 2009 | 2001 Mercury Grand Marquis

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

Air ride suspension 1997 ford expedition


If the compressor is working and actually pumping out air, might need to check your lines dont have a leak by disconnecting them from the bags. If pressured air is making it to the end of the line, then bags may need to be inspected and one or both replaced. However it is more likely that the lines are leaking or the compressor pump needs a service. Just a new set of rings in the unit. Good luck, hope it helps.

Dec 29, 2008 | 2001 Ford Expedition

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