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What are the steps to changing an air compressor

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First off, you need to take it somewhere and have the system evacuated of freon with a machine.
Undo the serpentine belt
disconnect the wire connection
unbolt the high and low pressure pipes on the compressor
Take out the bolts that are holding the compressor on the bracket and lift out.
On the new compressor, put some paq oil in it, and installation is just reverse, then have system charged.

Posted on Jul 22, 2009

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Posted on Jan 02, 2017

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2002 GMC Envoy Leveling system out on back passenger side. What can be done to fix it?


Would need to find out what's wrong first ! The air shock could be bad , ride hight sensor , air line could be broke etc...
The air suspension compressor assembly has the ability to detect faults and indicate the appropriate fault code via a blink code on the inflator switch LED. Is the light on ?
The air suspension compressor assembly will indicate the code when the condition that caused the code is current. In some instances the air suspension compressor assembly may set a flag that requires the ASCM to be reset. The ASCM will reset on its own after the ignition has been turned off for more than 2 1/2 hours or if the air suspension fuse has been removed with the ignition key turned off.

Perform a visual inspection checking for the following:
• Disconnected or damaged air lines.
• Disconnected or damaged air sensor link.
• Disconnected or damaged electrical harness

Trim Height Uneven or Low
Step
Action
Yes
No
Schematic Reference: Suspension Controls Schematics
1
Did you perform the Air Suspension Diagnostic System Check?
Go to Step 2
Go to Diagnostic System Check - Air Suspension
2
Did you review the Air Suspension Description and Operation?
YES - Go to Step 3
NO - Go to Air Suspension Description and Operation
3
Perform a visual inspection checking for the following:
• Disconnected or damaged air lines.
• Disconnected or damaged air sensor link.
• Disconnected or damaged electrical harness.
Did you find and correct the condition?
YES - Go to Step 9
NO - Go to Step 4
4
Cycle the rear compartment inflator switch.
Does the compressor operate?
YES - Go to Step 5
NO - Go to Inflator Inoperative
5
Check the vehicle D-height . Refer to Trim Height Specifications and Trim Height Inspection .
Are the measurements within the specified values?
YES - Go to Step 6
NO - Go to Step 7
6
Perform the air suspension air leak diagnosis. Refer to Air Suspension Air Leak Diagnosis .
Did you find and correct the condition?
YES - Go to Step 10
NO - System OK
7
Recalibrate the air suspension level sensors. Refer to Rear Air Spring Level Sensor Calibration .
Did you find and correct the condition?
YES - Go to Step 10
Go to Step 8
8
Replace the air spring sensor. Refer to Air Spring Leveling Sensor Replacement .
Did you find and correct the condition?
YES - Go to Step 10
NO - Go to Step 9
9
Subtract the Service Preferred Trim Height specification from the value obtained in step 12 of the Air Spring Leveling Sensor replacement procedure.
Add the value to the Service Preferred Trim Height specification. This is the adjusted D-Height measurement.
Repeat the Air Spring Calibration procedure using this value in place of the D-Height specification in step 7 of the Air Spring Calibration procedure.
YES - Did you find and correct the condition?
NO - Go to Step 10
--
10
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
--

Jun 22, 2017 | GMC Cars & Trucks

2 Answers

How do i fix a frozen air suspension on a 2004 lincoln navigator


Frozen? If it's sagging and won't pump up your air springs are probably leaking which can lead to air pump/compressor failure and or blown fuse. If that's the case, you'll need to replace the springs. You can also get a conventional coil spring kit from most part stores.

Feb 01, 2015 | 2004 Lincoln Navigator

2 Answers

Why ac blowing hot air


start off with the cheap possibilities and make your way threw.
I'd start off with replacing Air Charge temperature sensor, make sure your AC Hose isnt leaking anywhere, if those dont solve it then replace ur AC clutch, last chance would be replacing AC compressor. sometimes the compressor will malfunction randomly. or the AC clutch might malfunction aswell. covering these steps somewhere along the line you will have working AC again! good luck

May 18, 2013 | Volvo V70 Cars & Trucks

1 Answer

I have a 1994 lincoln mark viii. the front air bags keep deflating and sometimes stay up. every now and then you can hear the pump and it makes weird noises and will not pump at all. its like i am driving...


Unfortunately, it sounds like the air compressor for your air ride system is not working. But before you replace make sure that the height sensors haven't gone out which would bleed deflate the bags. SunCore Industries has about the best prices for the air compressor, dryer and air struts and bags.

Changing them is no picnic, but there is plenty of information at SunCore on step by step instructions to do it.

I have a 96 Mark VIII and have had to replace the rear bags and two height sensors and the air compressor so far, but when they work as designed they are a very smooth ride. A friend went with the replacement non-air ride and there is a big difference in how it rides.

Sep 10, 2011 | 1994 Lincoln Continental

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

1 Answer

Where can I get diagrams and instructions on how to change the timing belts on a 2004 DOHC 2.4 liter Dodge Stratus coupe?


orielly sells the books you will need. They sell chilton which will give you step by step procedure, I hope you have air compressor and air tools. It can be done by hand but it is no fun. Hope this helps.

Jul 02, 2010 | 2004 Dodge Stratus

1 Answer

I am looking for information on how to install / change an air conditioning compressor on a 2000 chevrolet Silverado


get a hayes or chilton service manual, they will help by showing the location and steps needed to remove and replace compressor. they cost about 20$ at autozone or oreillys.

May 25, 2010 | 2000 Chevrolet Silverado

1 Answer

How to install a air conpressor for 1995 jeep grand cherokee


Installing a compressor is a complex job there is alot more to just braking the lines and removing the bolts to the compressor and if you are not sure you really should leave it to a service department.I will tell you to proper steps. First you need to have the system evacuated of freon before you can break the lines.Then if you are installing a new compressor you will need to also purchase the accumilator as well as orfice tube or expansion valve wich ever the case may be. Alot of places will not warranty the compressor unless you change out the accumilator as well as the orfice tube or expasion valve. While you are changing these parts out also change out the orings associated with each part. You will also want to buy A/C flush and flush out the entire A/C system once you have done this begain to assemble the parts but dont forget to oil the compressor and accumilator and put some in the condensor. once the parts have been assembled then you need to have the system vacumed out of all moisture. This is crucial or you will have premature compressor failer. Once the system is vacumed its time to recharge make sure you hook up to the right line when charging the system as hooking to the wrong line will cause your can to burst assuming you are using small cans to recharge.charge only the required amount of freon do not over charge. If your comprssor locked up make sure its the compressor and not the compressor clutch lot less expensive to replace it. Also if its not blowing cold air and only cool air it could be orfice tube plugged up.

Dec 21, 2009 | 1995 Jeep Grand Cherokee

2 Answers

Change rear air bag in suspension


hi i live in ontario california i want to change my rear air bags suspension ford 2001 expedition you cant help me please i need instruccions step by step thank you

Apr 26, 2009 | 1994 Lincoln Town Car

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