Question about 2002 Pontiac Montana

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The air compressor that feeds the self-adjusting rear shocks has a rubber line coming off of it. That line then tees, one end connects to a connector on the frame. The other end is not connected and I'm unable to determine where it goes. I'm assuming it tore off from either bottoming out or hitting something in the road. Can you tell me where those flexible lines connect? The plastic lines are still intact and hook to both shocks.

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  • Pontiac Master
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You need to make sure the lines going to the shocks are still connected to the compressor...

Posted on Jul 03, 2017

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Posted on Jan 02, 2017

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SOURCE: i need a picture of the rear air shock compresser

i think its in the back under a plastic side compartment -its no big deal its just a little 12v air pump for the shocks in back if you wanted to u coul by pass it and get some plastic fittings from pep boys and put air in manualy like u would a tire - i have a 98 transport it has been a real pain with tailghts burning out front turn signals burning out and one day the wife brought it in all jacked up and the pump wouldnt shut off it was a cheap plastic arm under the van broke off the axle nothing but a simple on off swtch i duck taped to the axle -fixed 1 month later the motor blew up started to get hot head gasket or somthing - now im trying to get a 2003 just regular montana on the road everything works runs good but cant get the odometer to stay on im thinking about just lookin around for some "hot" inspection stickers when this goes ill never own another gm van -i think ill go japanese or somthin these things are just plain cheap junk

Posted on Apr 15, 2009

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1 Answer

Lost my brakes, due to a broken line. On the rear axle is a tee block feeding each wheel. There is a rubber line, that dead ends going no where? this is what lost my fluid.


Replace the rubber brake hose that goes to the Brass Block

Try Auto Parts Store first ,then a Dealer

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Jul 21, 2011 | 1991 Ford F150

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Rear end sits too low


You have worn out springs. Replace them or install air adjustable shocks.

Feb 25, 2011 | 1984 Cadillac Eldorado

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Im tryn to locate the air conpressor so I can rise the shocks.


usually this is located under the hood on fender wells. if nothing else start at the shock and follow air line to the pump. the system is on a self leveling switch located on rear axle which adjust to weight of car turning on the pump for proper ride height and comfort. you should determine why this system is not working. and yes usually there is a valve on the pump which allow you to manually introduce air into the system.

Jan 11, 2011 | 1994 Cadillac DeVille

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Air compressor hoses one goes up inside the back of van, the other goes where??? air compressor to a tee,one up the other ??? .


IT RUNS REAR AC.AND AIR SHOCKS...I JUST HAD TO HAVE MINE REPLACED MECHANIC SAID IT RUNS AIR SHOCKS AND REAR AC...

Nov 22, 2010 | 1999 Oldsmobile Silhouette

1 Answer

Rear air suspension problem on a 95 deville. i hear the compressor go on yet once the car is drive a service suspension light comes on


In my opinion the air ride suspension is one of automobile's biggest mistakes. I see this a lot.

The first thing you must do is isolate the problem.

Jack up the back of the car and remove the rear wheels.

Now your shocks are visible. Inspect the rubber boots in the midsection of the shock, If this is worn or torn they will need to be replaced as they dry out once the integrity of the boot is jeopardized.

Next turn the key forward to turn in the compressor that you hear. And follow the thin black air lines that run into the side of the shock. A lot of times, especially on a vehicle this age, these lines will at some point rub on the frame or other item and have holes. Just listening for air leaks and running your fingers along the lines (feeling for bumps or holes) will give you a quick answer on this.

The only thing left in the system is the compressor itself, just remove the air lines from the shocks and as the compressor runs feel the end for air pressure. If you feel it the compressor is working.

Once you have isolated the issue your vehicle faces, feel free to come back and ask for assistance in replacing them. Be thourough and check everything though because 1 bad element will make future problems inevitable.

Please feel free to rate my answer and come on back to FixYa anytime.

Sep 04, 2010 | 1995 Cadillac DeVille

1 Answer

Where is the a.i.r. pump located



The air pump for the secondary air system (emission control device) is located under the battery. If you do replace it, replace the check valve too, it is on top of the exhaust manifold and connected to the pump with a hose. The check valve fails and ruins the pump. Source(s): http://repairpal.com/volvo-850-1997/comm…
http://repairpal.com/air-pump-check-valv…
http://repairpal.com/air-pump

OR


I think they are talking about the pump to provide vacuum to the climate control when the turbo is putting boost in the intake manifold. The vacuum can come from an electric pump or from an engine driven pump, something like an old engine driven fuel pump. I needed an electric pump for my 765T, and all the wrecking yards wanted to sell me the engine driven form. (A new one was $500, and it wasn't that important to me.)

An engine that takes the engine driven pump will have a hole in it while the others will not have a hole. Source(s): 35 years maintaining my own cars, including 17 years with a 1985 765T


OR



Rear Suspension Leveling Air Compressor
RH front of vehicle, attached beneath the fascia

Rear Suspension Leveling Air Compressor Relay K19
Lower I/P, to the RH side of the steering column, on the relay box


Automatic Level Control System Operation Check
Support the rear wheels or support the rear lower control arms when certain tests require raising the vehicle on a hoist. Use two additional jack stands in order to support the rear lower control arms in the normal curb weight position when a frame type hoist is used. Refer to Trim Height Specifications in Suspension General Diagnosis.

Refer to ALC Suspension System Check for electrical troubleshooting of the Automatic Level Control (ALC) system, or if DTC's are present.

Diagnosing Leveling Complaints Without DTCs Present Procedure
Perform the following preliminary inspections before performing the system performance test:

Inspect the ignition (pin A & pin H) at the ALC sensor connector.
Ensure that the ignition (pin A & pin H) at the ALC sensor connector connection is secure.
Inspect the ground (pin E) at the ALC sensor connector.
Ensure that the ground (pin E) at the ALC sensor connector connection is secure.
Inspect the ALC sensor link.
Ensure that the ALC sensor link is properly secured to the actuator arm.
Inspect the ALC sensor actuator arm for damage.
ALC Diagnosis Table Step
Action
Value(s)
Yes
No

1
Has the ALC compressor assembly and the air tube been replaced?
--
Go to Step 7
Go to Step 2

2
Raise and support the vehicle. Lifting and Jacking the Vehicle in General Information.
Inspect the air tubes running from the ALC compressor to both rear shock absorbers.
Inspect the air tube connection at the ALC air dryer.
Are the air tubes damaged and/or disconnected?
--
Go to Step 13
Go to Step 3

3
Squeeze the left rear shock absorber in the middle of the air sleeve.

Did the air sleeve slightly compress?
--
Go to Step 5
Go to Step 4

4
Operate the ALC system for 60 seconds.
Test the air tube-to-air dryer connection for leaks using a soap bubble solution.
Is a leak evident?
--
Go to Step 20
Go to Step 5

5
Disconnect the air tube from the ALC dryer.
Connect the Pressure Gauge to the ALC dryer.
Close the toggle valve on the Pressure Gauge .
Operate the ALC compressor.
Did the pressure build to the specified value?
80 psi
Go to Step 6
Go to Step 10

6
Shut off the compressor when the pressure reaches 80 psi.
Monitor the gauge for 1 minute.
Did the pressure leak down?
--
Go to Step 10
Go to Step 7

7
Connect the Pressure Gauge to the right rear shock absorber. Ensure that the toggle valve on the Pressure Gauge is away from the shock absorber.
Close the toggle valve.
Pressurize the shock absorber at the toggle valve on the Pressure Gauge to 80 psi.
Monitor the gauge for 1 minute.
Did the system leak down?
--
Go to Step 11
Go to Step 8

8
Use the toggle valve on the Pressure Gauge in order to slowly release the air pressure.
Disconnect the Pressure Gauge from the right rear shock absorber.
Connect the Pressure Gauge to the left rear shock absorber.
Pressurize the Pressure Gauge to 80 psi.
Monitor the gauge for 1 minute.
Did the pressure leak down?
--
Go to Step 12
Go to Step 9

9
Use the toggle valve on the Pressure Gauge in order to slowly release the air pressure.
Disconnect the Pressure Gauge from the left rear shock absorber.
Connect the Pressure Gauge , inline, at the tee near the rear of the vehicle.
Reconnect the air tube to the ALC dryer.
Open the toggle valve on thePressure Gauge .
Using shop air, pressurize the system to 80 psi at the service connection of the Pressure Gauge .
Monitor the pressure gauge for 1 minute.
Did the pressure leak down?
--
Go to Step 14
Go to Step 20

10
Replace the following components:

• Replace the ALC compressor. Refer to Air Compressor Replacement .

• Replace the air tube. Refer to Air Tube Replacement .

Are the replacements complete?
--
Go to Step 20
--

11
Slowly open the toggle valve on the Pressure Gauge in order to relieve the air pressure.
Replace the right rear shock absorber. Refer to Shock Absorber Replacement in Rear Suspension.
Reconnect all of the air tube connections.
Is the shock absorber replaced, and are all of the air tube connections reconnected?
--
Go to Step 20
--

12
Slowly open the toggle valve on the Pressure Gauge in order to relieve the air pressure.
Replace the left rear shock absorber. Refer to Shock Absorber Replacement in Rear Suspension.
Reconnect all of the air tube connections.
Is the shock absorber replaced, and are all of the air tube connections reconnected?
--
Go to Step 20
--

13
Are any of the air tubes damaged?
--
Go to Step 14
Go to Step 18

14
Replace the air tube that runs from the air dryer to the two rear shock absorbers.

Is the replacement complete?
--
Go to Step 15
--

15
Remove the ALC air dryer from the compressor assembly.
Shake the ALC air dryer with the head connection down.
Did water/moisture come out of the ALC air dryer when the dryer was shaken?
--
Go to Step 16
Go to Step 17

16
Replace the ALC air dryer. Refer to Automatic Level Control Air Dryer Replacement .

Is the replacement complete?
--
Go to Step 17
--

17
Replace the air compressor head. Refer to Automatic Level Control Air Compressor Head Replacement .

Is the replacement complete?
--
Go to Step 18
--

18
Install the ALC compressor on the vehicle.
Reconnect all of the air tube connections.
Is the ALC compressor reinstalled, and are all of the air tube connections reconnected?
--
Go to Step 20
--

19
Repair the air tube-to-air dryer connection leak.

Is the repair complete?
--
Go to Step 20
--

20
Reconnect all of the connectors that were disconnected.
Reconnect all of the components that were removed.
Clear all of the codes with the ignition ON and with the engine OFF.
Wait at least 5 minutes.
Is the rear of the vehicle trim level?
--
System OK
--






Aug 04, 2010 | 1998 Cadillac Catera

2 Answers

Lift sensor for rear of 1988 Deville


To begin with, check the "ride level" fuse and make sure that the ride level compressor does work, and you should be able to hear that the ride level compressor is working when the ride level system is leveling the vehicle.

The ride level system uses an air compressor and either an air type of shocks or a type of air billow to raise and lower the vehicle, there is an adjustment to set the ride height and it is located under the vehicle and there is a control lever or rod that should be connected between the rear axle and a switch that is mounted on the body of the vehicle, and there will be an adjustment slot in the control lever between the switch and the body, and that is how you would adjust the ride level height, but be sure that the vehicle can not drop any further down if someone is under the vehicle trying to adjust the ride height.

However, you might find that the control lever to the ride level has fallen off from the switch on the body or it has come loose from the rear axle, and it is just hanging there not operating the switch on the body that controls the the ride level compressor, or there might be a blown out air shock or billow, or you might find that an air line from the compressor is leaking and the ride level compressor will just run continuously until it blows out the fuse, and if that is the case you might also find out that the air compressor has burned out from running continuously.

I hope that this information will help you to solve your ride level problem.

Jun 04, 2010 | 1988 Cadillac Sedan DeVille

2 Answers

I have 94'crown vic with rear air ride suspension problems. The back end won't rise. Any help is appreciated.


Start by checking the fuses for the air compressor for the rear suspension. these will be listed in your owners manual. Failing this it could be the compressor motor or wiring to the motor, unless you can hear the compressor working. If the compressor is running but not adjusting the back of the car then you have an air leak in one of the shocks or air lines.
if you find it is a fuse, also listen for the compressor motor running and an air leak, if the system is running constantly to make up for a leak , that may be what blew the fuse.

Hope this helps
Ed

Mar 29, 2010 | 1994 Ford Crown Victoria

3 Answers

Air shocks trouble shooting no air to shocks rear end saggs


first off! check the shocks seperately with a seperate line to each shock to insure the boots are not blown!! also check the o-rings or farrow beed's around the lines where to go into the shocks for leakage with some dish soap and a spray bottle if thr shocks seems to hold air when isolated from the system then you either have a broken line or the lines where they connect to the ir pump itself are leaking of one side of the air pump it leaking internally`

Jan 15, 2010 | 1991 Lincoln Town Car

2 Answers

2003 Olds Silhoutte Air Shocks and Compressor - not working


The load leveling shock will not work if there is an issue with the compressor. If you buy the sir shock's, your going to have to address the compressor issue to even have the air shocks level the Silhouette. Once you have the compressor issue addressed, the shocks it's self is simple enough to replace that you can do it with common tools to save you some money. My wife has a Montana and we had the same problem, since we do not tow and really never hold that much weight. We replaced the rear shocks with Monroe Reflex Shocks, Found the van to be much more sturdy then the air shocks ever were and the good thing about them is there were lift time replacement at Parts Source. Regardless on which shocks your going to use, it's a good rule to replace both sides at the same time. The only difference in to reinstalling the air shocks is you need to reattach the air lines to the shocks and that's simple as removing the shocks it self. The shocks are only held on by two bolts,  one on top and one on bottom and should only take about 20 min each side to do since you have to jack the car up and remove the wheel for room, but you can remove the shocks it self without removing the wheel, it's your preference. Good luck and keep me posted, be glad to answer any questions you may have. 

Aug 11, 2009 | 2000 Oldsmobile Silhouette

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