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My 2005 envoy Denali is having air suspension problems tapped compressor and worked for a day or so what do I need to replace

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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'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!

Posted on Dec 30, 2008

emissionwiz
  • 75744 Answers

SOURCE: 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.

Posted on Jul 20, 2009

  • 1 Answer

SOURCE: where is the fuse for the air ride compressor on a

the fuse in under the hood in the main fuse box, if your standing over the front drivers side tire, it will be on the far left 4th fuse down, marked RTD/ real time damping..... i believe the fuse is marked 30....

Posted on Dec 31, 2009

  • 63 Answers

SOURCE: 2006 GMC Envoy Air suspension - Back of the car is

yes you must have a leak somewhere. maybe in the air bags or the lines. jack up the car while there is still air in the bags get some soapy water in a spray bottle and start spraying the air bag and lines and pump until you find the leak. then replace whats needed.

Posted on Jan 06, 2010

  • 4 Answers

SOURCE: Removing rear air suspension on GMC Envoy

Just behind right rear tire up in the wheel well. Air inlet is inside right rear quarter near the accessory inflator. Compressor runs 3 lines one for the accessory inflator and one for each air bag.
THere are also 2 sensors, one on each trailing arm that senses load and then raises and lowers accordingly.

Posted on Feb 17, 2010

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1 Answer

Air bags for the suspension in my 2006 Envoy XL Denali has been replaced and it still doesn't lift up. What's wrong?


could be a faulty component in the kit supplied to the mechanic

is it a four bag kit ?

mechanic will have to miss his lunch till he sorts it out


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What does air suspension consist of


Air actuators (air chambers) on each corner of the vehicle, a compressor to inflate the actuators, ride height sensors and a control ecu to control the function. That's a basic overview, hope it helps

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Suspension deflates in cold weather


air compressors do not operate below 28 degrees you have to get them warm first I assume that your compressor is under your hood as long as you allow your truck to get cold or keep the air suspension your going to have this problem

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2007 envoy denali rear wont rise


well I will tell you my problem it maybe the same happening to you, every time I park the car for more than 4 hours it will lower the rear and after I start it will go to normal high, well the car have a air leak on one of the air bags in the rear, the compressor was pumping air almost all the time because of that to the point that one time just stop working. I have to buy new air compressor and 2 air bags. I bought them at www.arnottindustries.com not difficult to replace either.

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How long should it take for the self leveling rear suspension in a 2005 GMC Envoy XL Denali Edition to almost go empty. If i let the car sit overnight most of the air is gone and the rear is low, however...


The air suspension system should stay up for several days without going completely down, which probably means that you have a small leak which is quite common even on relatively new air bags or struts.

A general rule of thumb is that if the compressor isn't kicking on several times during a drive then they are good to go. The air bags are a pain to change, so most people don't change them until they are really bad.

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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

Leaning Envoy


I had the same problem with my 2005 xl Denali and I took it to the dealership and they set the limit switches the first time and that didn't work so off I went again back to the dealership and they replaced the air compressor for the load leveling system and that fixed the problem.

Jun 05, 2008 | 2005 GMC Envoy Xl

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