Question about 2005 GMC Yukon Xl Denali

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The air ride relay on my 2005 denali is where? new shocks/ new pump....still no go has to be relay? where is it?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: 2004 yukon xl denali self-leveling rear air shocks

There is a large fuse under the hood in the fuse box that is blown.

Posted on Oct 03, 2008

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emissionwiz
  • 76682 Answers

SOURCE: level ride shocks not working.

have a self test run buy the dealer on the self leveling system, most common causes are the ride height sensor, the air pump is defective or the pump relay is defective.

Posted on Mar 06, 2009

  • 94 Answers

SOURCE: 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

Posted on Mar 16, 2009

co7196
  • 3433 Answers

SOURCE: air ride is not working

Locate Leveling valve, above rear axle and manually operate, rembering where you started, then listen for compressor. Igniyion should be on.

Posted on Jun 09, 2009

  • 564 Answers

SOURCE: air shock on 03 escalade wont air up. Service ride

may be a bad shock warning these are expensive.or could be a bad ride leveler or height sensor

Posted on Jul 06, 2009

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1 Answer

Where is the air compressor for the ride control on 06 gmc denail


Ride control compressors burn up because of leaking air line or shocks. Replacing compressor won't last long if you have a leak. Most of these units are mounted under floor near rear axle.

Feb 15, 2014 | 2005 GMC Yukon Xl Denali

1 Answer

2007 Yukon Denali XL autoride suspension light comes on intermittently


Would need to know what DTC'S - diagnostic trouble codes are stored in the module for the autoride suspension . Hooking up a professional type scan tool ,looking at input data to the module etc... Looking at a wiring diagram an testing electrical circuit's using a DMM - digital multi-meter . Reading how the system works ,what all involved in making the system work . This is how a professional Tech would go about diagnosing this .

The automatic level control (ALC) system maintains a desired rear suspension position under all types of towing, hauling and loading conditions. The following components are involved in the operation of the ALC system:
• Air line tubing--Pressurized air from the ALC compressor is pumped to each of the rear shocks via air line tubing.
• Air drier--Pressurized air from the compressor is run through a drier containing a moisture absorbing chemical preventing water accumulation in the rear shocks.
• Compressor--Supplies pressurized air to the rear shocks
• Compressor motor relay--The relay supplies battery positive voltage to the ALC compressor motor.
• Pressure sensor--The electronic suspension control module (ESCM) module provides a 5-volt reference and low reference to the ALC pressure sensor. The module receives the signal voltage that is relative to the air pressure applied to the rear shocks.
• ESCM--Controls the ALC system and electronic suspension control (ESC) system and detects failures in both. The module monitors inputs from the position sensors, and pressure sensor to determine when to raise and lower the vehicle to trim height as the vehicle is loaded or unloaded. The module limits pump activation to 255 seconds to prevent thermal damage.
• Exhaust valve--An electric solenoid activated by the ESCM to vent air pressure from the rear shocks.
• Left and right rear suspension position sensors--The module provides a 5-volt reference and low reference to all 4 of the body-to-wheel suspension position sensors. The sensors send the ESCM a signal voltage that is relative to the rear suspension ride height
• Left and right rear shock absorbers with internal air chambers and dampers--Dampens the rear suspension and maintains trim height depending on the air pressure applied.

Nov 04, 2017 | 2007 GMC Yukon XL Denali

2 Answers

Why do I get a rattling sound in the rear of my 2004 GMC Yukon Denali XL every time I start it?


It is the compressor to the shocks. It hapens when the shock has a leak. It's called air ride system. it's very annoying disconnect the power going to the motor behind the driver rear wheel or fix the air leak

Sep 17, 2011 | 2005 GMC Yukon Denali

2 Answers

What is the ride control warning for on a 2005 yukon xl denali


It is the air shocks suspension on the rear.
When weight is added to the rear of the vehicle the ride control pump pumps up the shocks.

Feb 17, 2011 | 2005 GMC Yukon Xl Denali

1 Answer

2005 denali service ride control / air suspension pump


the leak almost 100% of the time is in the air bags of the shocks, there are special tools for isolating the individual shocks and seeing if they leak, but as far as the home repair goes u just replace them or have the dealer test them.

Jul 20, 2009 | 2005 GMC Yukon Xl Denali

1 Answer

Level ride shocks not working.


have a self test run buy the dealer on the self leveling system, most common causes are the ride height sensor, the air pump is defective or the pump relay is defective.

Mar 06, 2009 | 2003 GMC Yukon Denali

1 Answer

Auto ride on 2000 Yukon XL needs replacing.


Hey,

The air pump in located in the very back-left (driver's) side, underneath.
You know the shocks can "look" quit bad and still be okay.
Everything about this system is expensive (to me).
There is also a height sensor that can go bad and keep the air-pump from running.

I recommand an expert on this system.

Your GM Dealer is your best bet for parts.
Just my opinion.

Good Luck

Let us know,
Dave

Jan 26, 2009 | 2005 GMC Yukon Xl Denali

3 Answers

2004 yukon xl denali self-leveling rear air shocks


There's a lever that connects the driver-side rear shock to the Automatic Level Control module (the air compressor and the ride-height sensor). Disconnect the lever from the shock and rotate it up and hold it. The compressor should kick in when you hold in place after a few seconds. If it doesn't kick in, make sure your fuses and relays are good. Otherwise, you may have a failed ALC module/burned out air compressor (from the shocks being shot). After you replace the shocks (and after you recouped from the heart attack you had when you shelled out $500+ for each shock), replace the ALC module/compressor (it's all one unit), and test it - it should kick on when you rotate the lever up again.

Figure about $350 for the ALC module from your dealer, and make sure the part numbers match! Your truck came with an upgraded ALC module from the 2001-2004 module, which were prone to water damage.

Good luck!

Aug 28, 2008 | 2005 GMC Yukon Xl Denali

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