Question about 2008 Chevrolet Avalanche LT3

1 Answer

Service suspension system

Air pump does not run to adjust ride level anymore

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    New Friend:

    An expert that has 1 follower.

    Cheetah:

    An expert who has answered 20 or more questions within one hour.

  • Chevrolet Expert
  • 180 Answers

You need some one with a new scanner to enable it to turn on manually to see if it is the pump or something else like a height sensor. Check bout control module for codes.

Posted on Dec 31, 2013

  • jagornot Dec 31, 2013

    Correction, body control module.

×

Ad

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.
Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Function of suspension switch


AIR COMPRESSOR TO AIR RIDE IS POWERED DOWN.

Jan 22, 2014 | 1993 Lincoln Mark VIII

1 Answer

2003 Yukon Denali has Service ride Control Warning..wat to do?


Hi Jose:
The first place to start is to have Ride Control Module scanned for trouble codes, this requires a high end scan tool. Most common problem is the air compressor in the rear or a height sensor. Here is how the system works.

Automatic Level Control Description and Operation
The RTD system is bi-state real time damping system. The Suspension Control module controls the suspension damper solenoids and suspension position sensors, along with parts of the automatic level control (ALC) system and electronic variable orifice (EVO) power steering system.

The Automatic Level Control system consists of the following:
• Suspension Control Module
• Compressor/Leveling Module
- Air Pressure Sensor
- Exhaust Solenoid
• Compressor Motor Relay

The objective of the Automatic Level Control System is to provide constant ride height at all load conditions. The Suspension Control module monitors body-to-wheel height, and vehicle speed.

The Suspension Control module will use the rear body-to-wheel displacements and vehicle speed inputs to keep the rear trim height of the vehicle at its desired level.

The electronic suspension control (ESC) system is bi-state real time damping system. The ESC module controls the suspension damper solenoids and suspension position sensors, along with parts of the automatic level control (ALC) system, if 1500 series.

The ESC system consists of the following:
• The ESC module
• The compressor/leveling module, if 1500 series
- The air pressure sensor, if 1500 series
- The exhaust solenoid, if 1500 series
• The compressor motor relay, if 1500 series
• The steering handwheel speed/position sensor
• The suspension damper solenoids
• The suspension position sensors

Hope this helps; also keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using Fixya, and have a nice day.

Nov 16, 2011 | 2003 GMC Yukon Denali

1 Answer

The front leveling sensor is bad how do you override the air ride system


there is no way to over ride the leveling system, there is a shut off switch, but if shut off in time the air will be depleted out of the system and will bottom out the suspension and cause damage to other components and also the vehicle will be riding very low to the ground, leaving the leveling sensor without repair will in time the air ride pump. hope this helps

Jan 01, 2011 | Ford Expedition Cars & Trucks

1 Answer

Service ride control stays on when i drive my 94 Seville


Check for an air leak in the air suspension system, if there is an air leak the system will continually run until it burns out the ride level compressor.

Apr 28, 2010 | 1994 Cadillac Seville

2 Answers

What is ride level on 1990 cadillac brougham


Ride level is exactly what it says it is. It has an electronic suspension system with air shocks which monitors the ride hight and adjust it as needed due to road conditions or speed, to make the ride quality more comfortable

Oct 17, 2009 | 1990 Cadillac Brougham

4 Answers

Weird noise in a 1991 olds 98


HI. IF YOUR CAR HAS AIR RIDE, THATS IS YOUR PROBLEM. YOU HAVE A AIR VALVE OR AIR BAG PROBLEM. LET ME KNOW. THANKS JIMBO

Aug 06, 2009 | 1991 Oldsmobile Ninety Eight Regency

2 Answers

2003 NAVIGATOR AIR RIDE STOPPED WORKING,PUMP CHECKED OK.


The navi has leveling sensors on both axles that are switches and are adjustable. Most likely these are out of calibration. DO NOT attempt to move or adjust these with the vehicle on jack stands. Vehicle could shift and fall resulting in serious injury.

May 19, 2009 | 2003 Lincoln Navigator

3 Answers

2005 gmc yukon xl denali service ride control


it has to do with your air ride suspension best bet is take it to the dealer there is probably a problem with a level sensor. hope this helps you

Mar 16, 2009 | 2005 GMC Yukon Xl Denali

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

92 lincoln towncar air bag light flashing


Air suspension is controlled by the compressor in your engine compartment.  The compressor runs when the suspension is not level.  Either because you have loaded the car with exceptional weight and the system is now adjusting the ride, or you have a leak in the system, or you have a bad sensor.
If you have a leak, the most likely culprit are the air suspension bags, the air suspension solenoids or possibly the lines to them.
Try these sites: http://www.strutmasters.com/catalog.php?cat=2

http://www.suncoreindustries.com/english-lincoln-town-car-89-06-air-suspension.html

I don't work for either of them.  I own a 96 TC and have replaced my air suspension with coil springs form Strutmasters.  Work GREAT and I have no more air suspension problems.  Rides just as good too.  You can't tell the difference.

Oct 18, 2008 | 1996 Lincoln Town Car

Not finding what you are looking for?
2008 Chevrolet Avalanche LT3 Logo

184 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

78267 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

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

Answer questions

Manuals & User Guides

Loading...