Question about 1998 Cadillac DeVille

1 Answer

I have replaced air shocks,pump and leveling sensor on a 1998 Deville base model ($1500+ so far). Suspension system still not operational.Is there any other device to replace? Thanks

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 6 Answers

Go to strutmaster.com get rid of all the air suspension and sensor, the kit costs around $400.00

Posted on Jun 07, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My check your air suspension warning light came on. I checked the book that came with the car and it said, it could be in the electic part of it. So my question to u is what can the electric part be?


It's mostly electronic , There is a control module ,sensor's at the corners ,wheels , an electric compressor to pump air to raise the vehicle .
You don't say what make , model an year vehicle but there all pretty much the same . This is for a Cadillac Deville
The electronic suspension control (ESC) system consists of the following components:
?€¢
Electronic suspension control (ESC) module (3)


?€¢
Four dampers contained in the 2 front struts (5 and 6) and the 2 rear shock absorbers (1 and 9)


?€¢
Four positions sensors (2, 4, 7, and 8)


?€¢
ALC air compressor module (10)


?€¢
Damper relay (not shown)


?€¢
ELC relay (not shown)

The ESC system with rear automatic level control (ALC) controls damping forces in the front struts and rear shock absorbers in response to various road and driving conditions. The rear ALC portion of the system maintains a proper vehicle trim height under various vehicle load conditions. For more information on the ALC, refer to Automatic Level Control Description and Operation in Automatic Level Control.
The ESC module receives the following inputs: wheel-to-body position, vehicle speed, and lift/dive. The ESC module evaluates these inputs and controls actuators in each of the dampers independently to provide varied levels of suspension control.
Your best bet is take it to the dealer !

Jan 12, 2016 | Cars & Trucks

1 Answer

TE LOAD LEVELERS ARE NOT WORKNG, CAN I REPLACE THOSE LOAD LEVELER SHOCKS WITH ANOTHER TYPE SHOCK OR MUST I USE THE SAME SHOCK TAT IS STOCK?


are you talking about the air bag suspension system or the shocks themselfs???if your car is on the ground and not staying up it would be the air bag suspension and those can be changed to metal spring suspension. if shocks then the answer is: yes go buy at auto parts.

Sep 06, 2011 | 1998 Lincoln Continental

1 Answer

How to remove air suspension pump?


Replacing your Cadillac DeVille DTS electronic shocks with these reliable non-electronic shocks is a simple installation procedure. Cadillac air suspension fails because of rubber dry rotting, and then leaking. Your air suspension compressor will eventually fail because of this. Cadillac shocks in the front fail because of the seals in the Cadillac shock wearing down over time. They eventually leak, losing its dampening ability needed for a safe and smooth ride. Try cadillac dealership for a little more info.

Apr 19, 2011 | 1998 Cadillac DeVille

1 Answer

The rear of the car sets higher than the front, suspension is stiff in the back to. Is there a suspension control system that is not working


There's a level sensor in the back of most cars that have air ride suspension such as Cadillac Devilles.

If there is plenty of pressure, it's probably not a leaky air shock aborber nor is it a bad air pump under the hood.

Nov 11, 2010 | 1994 Cadillac DeVille

2 Answers

Hello expert, my recently bought XJ12 (XJ81) constr. 1994 fails to control the car´s height at all. Bleeding the hydraulic (HSMO) systen seems to be nearly impossible as very low (if any at all)...


Hi! The real cure for this is to replace the hydraulic shocks. Yes the there is no leak but when the shocks is faulty it fails to give the desired ride height. Once the hydraulic is replaced you'll be good. Hope this helps and thank you for using FixYa!

Aug 30, 2010 | Jaguar XJ12 Cars & Trucks

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

My 1998 cadillac deville rear shocks are low my pump comes on for split second and goes off


Normal operation is for the pump to run for a few seconds every time the vehicle is started. After this, the level sensor will determine whether or not the pump should run. Sounds like the sensor is not activating the pump.

Oct 24, 2009 | 1998 Cadillac DeVille

1 Answer

My 98 Cadillac DeVille rear air suspension system works great UNTIL I load weighted luggage in trunk and passengers in back seat. I then drive around for 15 to 45 minutes and thats when the rear end of the...


Common problem on all air suspension vehicles. It could be that there is a hairline crack in one of the shock bladders or that the pump is just too weak to pump up to it's intended pressure, a sensor or solenoid could also be bad.

Whenever I run into this problem I order a spring conversion kit for that vehicle, it is usually not worth spending $3000+ to repair the suspension.

www.Strutmasters.com sells the best kits, $327.00 for the rear. It also comes with a resistor so that your suspension light is not on.

Sep 19, 2009 | 1998 Cadillac DeVille

1 Answer

1998 seville sts check suspension light stays on. New shocks on rear.


that system has a pump, you should hear it run when you start the car. it also has a bleed valve. i have seen the valve get stuck before. i don't remember what year caddillac stopped putting the suspension switch in the trunk, but if the switch has been turned off the light will remain on as well. there is a level sensor under the rear of the car connected to the suspension you can try to disconnect the arm and manually move it and see if the pump kicks on. there is a few second delay before you hear the pump. if the fuses are good and the switch is on check for voltage at the pump when you move the level sensor. check for signal from the sensor. if pump runs and shock don't air up check for air leaks with soap water spray, and/or air bypassing valve. hope i helped you...dustang

Mar 29, 2009 | 1998 Cadillac Seville

1 Answer

1998 deville, suspension automatic leveling system


by pass the air compressor unit with a universal air shock kit from auto zone. 18 bucks a couple of fittings and fill it up manually

May 21, 2008 | 2001 Cadillac DeVille

Not finding what you are looking for?
1998 Cadillac DeVille Logo

Related Topics:

223 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts

yadayada
yadayada

Level 3 Expert

75051 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

7726 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...