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  #1  
Old 01-05-2015, 11:48 AM
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"service air suspension" - 2011 Overland

Well, I am thinking that I may have been hedging my bets with my QL thus far - as we're now at just over 88k miles on the 2011 Overland, and now the air suspension is seeming to have an "issue".

So: Problem started last night when I pulled into the drive, when I hit the "park/lower" button, and it sounded like it was running the compressor continually - even after I turned the car off. So, I started the Jeep again, and the air suspension seemed to be confused (orange arrow "UP" on the EVIC) and said "service air suspension" - a first for this truck...

With 88k miles on it: I fear that this may be a verrrrrrry expensive repair. I may try to tackle this repair on my own if it is something that can be fixed without something specific (my efforts may be thwarted by the reality that a re-charge of the system may be needed).

Anyone tackle this job on their own with good results?

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  #2  
Old 01-05-2015, 12:16 PM
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Re: "service air suspension" - 2011 Overland

I had the exact same issue that you have! Got home one evening and pressed the Park button and we heard the compressor making some serious banging noises and then abruptly stopped.The front end lowered to the Parking mode but the rear end stayed up.
The compressor is completely dead.I have spoken to my dealer and they believe that it needs a new compressor,a new controller ,new height sensors and a new proportioning valve.Vehicle has 52000 kilometres on it and thank God I purchased the extended warranty.
Bringing it in for service tomorrow.
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Old 01-06-2015, 09:18 AM
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Re: "service air suspension" - 2011 Overland

I did a little recollection yesterday and believe that this problem may have been brought on by a tire rotation. I brought the truck to the tire place to get a rotation, they put it on a hoist, and I am very willing to bet that they did not do the "disable air suspension" procedure before lifting the vehicle.

Sadly, I trusted that they knew what they were doing, as I spoke with the service manager and made a point of informing him about the air-suspension, he said that there would not be a problem.

I hoped that the system just needed to "re-learn" it's functions, so I disconnected the battery for a few minutes and reconnected it.

No dice. This morning on the way into the office, it sent an alarm multiple times and when I put it into park mode: the compressor was rather loud while lowering the car. Awesome. ... sounds expensive.

I am thinking that I may want to find one of my friends at the supplier to see if I can get parts.
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Old 01-06-2015, 07:40 PM
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Re: "service air suspension" - 2011 Overland

Quote:
Originally Posted by Robey5 View Post
I did a little recollection yesterday and believe that this problem may have been brought on by a tire rotation. I brought the truck to the tire place to get a rotation, they put it on a hoist, and I am very willing to bet that they did not do the "disable air suspension" procedure before lifting the vehicle.



Sadly, I trusted that they knew what they were doing, as I spoke with the service manager and made a point of informing him about the air-suspension, he said that there would not be a problem.
The air suspension will disable itself if lifted on a hoist. It will try to level the vehicle several times and then shut down. I doubt this was the cause of your issue.





Quote:
This morning on the way into the office, it sent an alarm multiple times and when I put it into park mode: the compressor was rather loud while lowering the car. Awesome. ... sounds expensive.



I am thinking that I may want to find one of my friends at the supplier to see if I can get parts.

You really need to find out what the issue is first before throwing parts at it. It could be the compressor. It could also be the valve block. Or, the system may just need a recharge after all this time. I'd have a dealer check it out first, then decide how you want to proceed.
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  #5  
Old 01-12-2015, 04:55 PM
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Re: "service air suspension" - 2011 Overland

Peter_K:

Thank you. You sound like you're experienced.

I had the dealer take a look at her today.

There was recall work that needed to be done as well, so I had them tackle that work while it was in there.

I was informed by the service guy that there was a SW flash that was done; and he cleared the malfunction code(s). He was able to get the suspension to work properly, and he has reported that all is good.

I am a bit apprehensive here; as the trouble code(s) that came up were reported to be ones that were typical when the temp is low.

I will continue to monitor the system; hope that this thing is not going to be pesky
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Old 02-03-2015, 09:40 AM
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Re: "service air suspension" - 2011 Overland

Well:

I got the "service air suspension immediately" message on the EVIC yesterday.

Not good. Looking at the position of the ride, it looks like it is in park-mode when parked on a level surface. While driving it, I don't hear the compressor or any of the normal stuff with the adjustments while in motion.

When I look at the indicator to show what position the suspension is in while in Auto mode (while in motion), it has it in the "first" position.

I think we may have a leak somewhere. Any input from the experienced JG members out there have any suggestions on where I should look (for leaks) first?
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Old 02-04-2015, 08:14 PM
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Re: "service air suspension" - 2011 Overland

Anytime it is -20 I get the "service air suspension immediately" on start up and a couple of times the Jeep has refused to raise. Once the Jeep warms up everything is fine. Anyone else experience this?
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  #8  
Old 02-05-2015, 11:34 AM
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Re: "service air suspension" - 2011 Overland

...the saga continues...

This morning I popped the hood to take a look at the 40A fuse for the air ride suspension.

I used a DMM to test the 40A fuse, -0- continuity. Went to A-zone to get a replacement fuse... installed...

So: I was informed by an engineer who worked on the QL system - the compressor will tend to blow a fuse if it works too often and gets warm. ... the reason that the compressor will get warm is because it is trying to run too often to send air to the air-bags... conclusion: there may be a leak in my system that the compressor is trying to make up for.

This afternoon, I am going to bring it into the heated garage and see if I can get it to lift the car.

Regarding your air suspension JeepingNet - - I've never had a fault that occurs only in cold, I will let you know where we get with this one on my end... I am not sure if my issue is directly connected to the cold weather that we are having up here in Michigan; could be just coincidental.
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Old 02-06-2015, 09:14 AM
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Re: "service air suspension" - 2011 Overland

The fuse did the trick ... for the moment.

However, I am now hearing the compressor run all the time. It is running well after I shut the car off, meaning it is attempting to do something after the car is shut down.

There must be a leak somewhere. I think my next stop is going to be at a dollar store to get some bubbles to try to find the leak.
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  #10  
Old 02-09-2015, 02:16 PM
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Re: "service air suspension" - 2011 Overland

An update.

The fuse got the system running, for a day or so. I went back and forth to the office, and on Friday evening the system was "stuck" in the park position again by the time I pulled into the drive.

I can hear the compressor is running constantly. So, I headed to another dealer this morning to have them take a look.

I asked them (specifically) if they had a tech who was qualified to work on this system - of course they "did". With my little diagram in-hand with the QL system and a plan of attack (if I were turning the wrench) -- I asked that they take their time to trouble shoot the system.

I got a call about 2 hours after I dropped the car off -- "...we're looking at about $2k in parts and labor, we're going to need to replace the compressor, because it will not stop running..."

Ok, maybe (I say to myself) ... but ... I would like to know what happens to this system if the system is re-charged. I am sure with the Nitrogen gas added back into the system, the compressor will not run continuously.

Call back to the dealership. ...Suggest that they re-charge the system, and see if there is a leak in the system before I break off my hard earned cheddar for the compressor. The service advisor says: the technician said that he cannot add gas to the system because the compressor will not stop running.
I suggest to pull the 40A fuse to stop the compressor from running continuously, add the nitrogen and then see what happens. He said that he will ask the technician if he can do that.

The compressor is $1.6k ... alone. It seems to me that we need to address the root cause rather than the symptom -- if we add a new compressor to a system that leaks, we will have to replace the compressor again before too long.

My thought is that the technician pulled my truck into a bay, and connected the diagnostic tool to the QL controller and the controller suggested a compressor is my fault from the code that was recorded.

Stay tuned.
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Old 02-10-2015, 11:43 AM
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Re: "service air suspension" - 2011 Overland

subscribed and good luck. Hope that works and it's not the compressor. I want to believe the air suspension is holding up at just 55k on my 2011, but I'm having some doubts with the noises I hear sometime and the ride quality when going over uneven bumps.
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Old 02-10-2015, 03:39 PM
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Re: "service air suspension" - 2011 Overland

According to the service department: the system "requires/ed" a new compressor.

... ok (taking a deep breath...) is that going to fix the issue?

I have some serious reservations. ...but I trustingly say OK, go ahead ... since you are confident that will FIX the issue.


I then receive a call from the service department, at about noon today saying that they are "done" with the repairs.

Good! I exclaim and prepare myself for the $2 kilo-buck transaction that I am going to make.

I then drive my S-box rental to the dealership thinking that this saga has a conclusion in the very near future.

Paid the bill, saw the Jeep come out of the car-wash, and got my keys.

Drove the car about 10 feet, put it in park mode. Seemed to work OK.

...need to get to the office...

pull the jeep onto the adjacent roads, hit the "UP" button. Arrow up display on my EVIC stays illuminated, and the level doesn't move.

Turn into the office park and hit the up button to get to the L3 suspension setting. Arrow up still illuminated, and the up buttons are flashing, but the level is not moving.

Call the dealership to inform them that they will be seeing me again in the morning. The Service Advisor says "the tech tested it, and it worked, so I am not sure what happened..."

Back to the dealership tomorrow morning.
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