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  #13  
Old 10-09-2014, 01:15 AM
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Re: Aero mode even with ECO off?

I'd prefer to lock out aero mode when travelling fast on gravel roads. Actually, I'd prefer to be able to maintain OR 1.

QL doing whatever it wants wasn't something I considered when selecting the vehicle, plus it's standard with Overlands anyway. Roll on LLAMS...

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  #14  
Old 10-09-2014, 04:32 AM
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Re: Aero mode even with ECO off?

Aero mode gives a much more plush smoother ride. The more air or higher the car the rougher it rides
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  #15  
Old 10-09-2014, 08:00 AM
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Re: Aero mode even with ECO off?

Quote:
Originally Posted by bill_de View Post
Haven't seen it yet. You may have a '15, but there are an awful lot of out of warranty Jeeps already on the road with Quadra-Lift.

Why do you think it should be designed with the ability to shut aero mode off? Just because they could have, or do you have something in mind.

For me, if it wasn't for the little message in the cluster I would never know I was in aero mode.



___
Air springs are relatively new on the Grand Cherokee. I believe the 2011 model year was the first time the air suspension was offered....so give it time and for sure we'll see threads with guys ripping out failed air suspension to replace it with much less expensive coil springs and shocks. Now that those 2011 models are starting to get past warranty, expect to see it soon....

By the way, this is nothing new. Any vehicle that has had air suspension for a long time will have forum threads like this one:

DIY: Rear coil spring conversion - MBWorld.org Forums

Or just look at all the kits available with everything you need to convert from air to coil. Here's a good example for Land Rovers:

Range Rover Coil Spring Conversion Kit # 9520LB | Range Rover Suspension Parts
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Old 10-09-2014, 08:05 AM
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Re: Aero mode even with ECO off?

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Originally Posted by bill_de View Post
Why do you think it should be designed with the ability to shut aero mode off? Just because they could have, or do you have something in mind.


___
Because I think the driver should have the choice. Honestly though, it doesn't really bother me. If the thing wants to drop a 1/2" on the highway, that's okay with me. But it would be nice if I could decide if it should drop into Aero mode or not.
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  #17  
Old 10-09-2014, 04:14 PM
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Re: Aero mode even with ECO off?

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Originally Posted by bill_de View Post
Haven't seen it yet. You may have a '15, but there are an awful lot of out of warranty Jeeps already on the road with Quadra-Lift.
Probably a few hundred grand of them....
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  #18  
Old 10-10-2014, 10:45 AM
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Re: Aero mode even with ECO off?

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Originally Posted by MSCA View Post
But anyway, I think they should have designed the system to go into Aero mode when at highway speeds in eco mode and had the ability to disengage Aero mode when Eco mode is off. Actually, I could quite easily make that modification myself, as it would be very simple.
I doubt it will be very simple to modify the WK2 Quadra-Lift system (since NO ONE has managed to do it yet... to my knowledge). But give us some details on why you think it would be.

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Old 10-10-2014, 11:23 AM
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Re: Aero mode even with ECO off?

I agree with Snipe315...this is all computer controlled, not mechanically controlled, so modifications to behavior would be a tough row to hoe. There are some physical connection arm modifications available to "lower" and/or "level" a JGC with QL and they have been discussed in the Suspension/Driveline/Brakes/Wheels/Tires section up above.

That said, for the record, I'd like to be able to run in Aero mode as "normal" most of the time, not just at 65+ MPH and without turning off traction control that happens with SportMode. But that's not an option...
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  #20  
Old 10-10-2014, 12:25 PM
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Re: Aero mode even with ECO off?

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Originally Posted by MSCA View Post
Don't kid yourself. That's exactly what a lot of people will do when their warranty is up and the air suspension fails. Look for "air spring to coil spring conversion" threads in the future. That's a lock for sure
Hmmmm, wonder how big a market it could be?
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  #21  
Old 10-11-2014, 12:45 AM
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Re: Aero mode even with ECO off?

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Originally Posted by Snipe315 View Post
I doubt it will be very simple to modify the WK2 Quadra-Lift system (since NO ONE has managed to do it yet... to my knowledge). But give us some details on why you think it would be.

It would be very simple. All that needs to be done is to interrupt the signal that triggers Aero mode. It's not nearly as complicated as you're making it out to be. I could figure it out with nothing more than wiring diagrams.

Have you ever rewired your fog lights to stay on with your hi-beams? I have. Have you ever grounded the TPMS signal to prevent an idiot light from illuminating when you're running tires without sensors or have dead batteries in your sensor(s)? I have. Hell, I even managed to increase the time delay circuit on my intermittent wipers using a wiring schematic. Trust me, preventing Aero mode wouldn't be too difficult to pull off.
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  #22  
Old 10-11-2014, 12:48 AM
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Re: Aero mode even with ECO off?

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Originally Posted by lstowell View Post
Hmmmm, wonder how big a market it could be?
It's going to be a HUGE market. There are a lot of GC with air suspension and as they age, people will not want to spend the money to replace expensive components. The coil spring conversion market will be a much less expensive option.
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Old 10-11-2014, 08:55 AM
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Re: Aero mode even with ECO off?

Quote:
Originally Posted by MSCA View Post
It would be very simple. All that needs to be done is to interrupt the signal that triggers Aero mode. It's not nearly as complicated as you're making it out to be. I could figure it out with nothing more than wiring diagrams.

Have you ever rewired your fog lights to stay on with your hi-beams? I have. Have you ever grounded the TPMS signal to prevent an idiot light from illuminating when you're running tires without sensors or have dead batteries in your sensor(s)? I have. Hell, I even managed to increase the time delay circuit on my intermittent wipers using a wiring schematic. Trust me, preventing Aero mode wouldn't be too difficult to pull off.

Might work if the WK2 was old school. It isn't--just like almost everything else today. There's no single wire or even set of wires with binary signals which control Aero mode (or anything else for that matter). The Air Suspension Control Module (ASCM) operates the compressor and valve body directly, but for determining what do do with said compressor and valve body, it relies on bus communications and handshaked messages from several other control modules. These all travel over the high-speed CAN interconnect bus. It's a communications protocol used over this bus--not simply binary signaling.

Your available options are:
1) Completely disable the ASCM by severing communications on the CAN bus. This will likely result in multiple fault codes being set and also completely disable the other features of the air suspension.

2) Insert a microcontroller based setup between the ASCM and the rest of the vehicle to intercept and modify bus communications to your liking. You would have to reverse-engineer the protocols, handshaking, and so forth.

3) Find a way to modify the programming of the ASCM directly.

4) Live with it.

All but (4) are not easy or desirable as you have tried to indicate. It is not simply a matter of modifying some wiring.
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  #24  
Old 10-11-2014, 08:56 AM
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Re: Aero mode even with ECO off?

Stooge the potentiometers.
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