Question about 2003 Hummer H2

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Service air suspension

What could be causing the "service air suspension" warning to come on. when i turn off my hummer and let it sit for an extended period of time, the air bags will deflate and re inflate when the vehicle is turned on.

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  • dig43 Jan 24, 2009

    My rear air suspention went down slowly over the coarse of about a week and wont come back up.



  • johnny_boy_2 Feb 06, 2009

    the rear air suspensions doing the same on mine, it wont come back up and its real low, but i think it has to do with my lock saying the doors open cuz in the manual it says the air suspension wont pump with an open door..idk, but it was a gradual process i hope its not the shocks-

  • Anonymous Apr 12, 2009

    air bag suspension

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Your airbags probably have an air leak or are just starting to crack. Go to you tube and type in Suncore hummer suspension air bag replacement. They have a whole how to install that also show your suspension and how it fails

Posted on Mar 13, 2009

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Posted on Jan 02, 2017

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1 Answer

Air suspension hummer h2


Your vehicle is equip with air bag system. You probably experiencing an air lost due to air bags leaks or your leveling valve is exhausting air at the exhaust port. Here is what you do. Spray soap with water on spray bottle and spray around the air suspension area. when you see bubbles coming out that's the leaks. fix it. Good luck.

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My a/c does not blow cold when idling


Condition

A/C stops cooling and blows warm air when the vehicle is idling for an extended period of time such as sitting in traffic.

Cause

Inadequate airflow over the condenser may cause this condition.

This problem is a known issue, See Bulletin No.: 01-01-39-004A
http://www.grandprixforums.net/website/Docs/TSB/99-01-39-004B_Air_Conditioning_Odor.pdf

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Warning suspension workshop message appears in center display ride heigth cannot be reached. . passenger front suspension does'nt lift.


Hi!

Your vehicle is equiped with a small compressor that pumps air into either a bag or shock absorber, each one has a leveling mechanism that sends the signal to pump more air to that particular side. This keeps your vehicle leveled at all times, like when you have passangers in the back sit, passenger sit, or luggage.

The message you are getting means that either the air is not getting to the front passenger suspension to level it up, which could be due to an air leak, or the bag or the part of the suspension that lifts that part of the vehicle is defective.

You can get a diagnostic at any reputable suspension shop at no charge to find out the exact cause.

Good Luck!! Don't forget to rate this post!!

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My hummer has hard start when it's turned off for ashort period,


A scan tool should be able to read the temp pids at operating temperature to see if they are "off" enough to cause problems . Check for fuel lines to close to heat sources as boiling of the fuel causing vapor lock may be happening after heat soaking .

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u need to change/service the air compressor in ur car.
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My air suspension light came on and want go off


The warning light is advising you of a fault in the rear air suspension system. Is the car sitting level ? The switch in the trunk is ONLY TURNED OFF when you incur a flat tire in the rear tires and must jack up the rear of the car. IF NOT TURNED OFF the air suspension will over-extend with air . Hope this helps.

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check for faulty load leveler valves for the rear suspension
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Apr 13, 2017 | 2003 Hummer H2

2 Answers

I just installed new air bags for rear suspension of my 2003 H2 hummer and they won't air up. When I pushed the aux air button in the back of the hummer for per say airing up the tires the passanger side...


It sounds to me like your compressor got killed. What probably happened is that the airbag got a hole or tiny crack in it so the compressor has to work extra hard because it is like blowing up a balloon with a hole in it. Therefor the airbag killed the compressor. I would recommend going to strutmasters.com and taking a look at our conversion kits. these convert you from the airbag to a powder coated American made steel coil spring that is guaranteed to last the life of the car. I added the link below so you can check it out.
http://www.strutmasters.com/hummer-suspension-parts-s/96.htm I hope I was of some help
Good Luck!!!

Mar 13, 2009 | 2003 Hummer H2

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