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Old 09-16-2014, 08:04 PM
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newbie!! overland wont raise from park height

Hi all Im new to the forum and looking for some info on my 2011 jeep grand overland edition. I jumped in it Monday morning and it was pretty much on the ground sitting and stuck in park mode in the air suspension. quadra lift?
So I took it to the dealer and they are telling me that i need a new control module. I was wondering if anyone has had this problem and what they did. I have a mechanical background and poked around and from what i have read from forums that I can hear my compressor run then kicks out due to being hot which it says on the dash. I asked about a software update i saw but the dealer said that they could not update it because there was no signal from the module. Which doesnt make sense to me because the the pump still runs when you hit the button and they light up. Any insight would be great

THANKS GUYS

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Old 09-20-2014, 08:55 AM
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Re: newbie!! overland wont raise from park height

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Originally Posted by toofst36 View Post
Hi all Im new to the forum and looking for some info on my 2011 jeep grand overland edition. I jumped in it Monday morning and it was pretty much on the ground sitting and stuck in park mode in the air suspension. quadra lift?
So I took it to the dealer and they are telling me that i need a new control module. I was wondering if anyone has had this problem and what they did. I have a mechanical background and poked around and from what i have read from forums that I can hear my compressor run then kicks out due to being hot which it says on the dash. I asked about a software update i saw but the dealer said that they could not update it because there was no signal from the module. Which doesnt make sense to me because the the pump still runs when you hit the button and they light up. Any insight would be great

THANKS GUYS

Greetings and welcome,

Are you the original owner of this GC?

If it is still under warranty, then module should be covered. If not, then this is a case for a second opinion and that requires you to try another dealer.

Depending on your build date, their where various glitches in the Quad-Lift, however it was not a wide spread of a problem. I remember both MB and LandRover had early problems with theirs.

Obviously, when you engage the QL, the module is sending data to the pump to release the nitrogen from the storage tank. It is very possible the bi-directional data signals are not making its way to the values at the 4 points at the suspension. That means no nitrogen is getting into the lift/lowering mechanism and then the pump automatically times out from the consist running. Did they confirm that?

Best for now.
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Old 09-20-2014, 09:25 PM
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Re: newbie!! overland wont raise from park height

Sounds like you need a new compressor module. Mine went out a while ago.


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Old 10-08-2014, 08:01 PM
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Re: newbie!! overland wont raise from park height

See my posts for Quadra Lift Suspension Failure. Luck is not on your side.
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