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-   -   Shudder, Do you have Quadra-Lift ? (http://www.jeepgarage.org/f107/shudder-do-you-have-quadra-lift-20185.html)

vikingdave 03-13-2011 12:15 PM

Shudder, Do you have Quadra-Lift ?
 
I have not seen anything yet that shows a link between Quadra-Lift and shudder, but I'm wondering if there might be a relationship there. If you are experiencing shudder, do you have Quadra-Lift ?

andylcg 03-13-2011 04:30 PM

Re: Shudder, Do you have Quadra-Lift ?
 
I have the Quadra-Lift II, i do not know if there is any relation there. However, i know that that the shudder is not normal, and you need to bring your jeep back to the dealership.

2011RitterGC 03-14-2011 08:17 AM

Re: Shudder, Do you have Quadra-Lift ?
 
8 is not a large sample size but 3x the number have QL??? I can't see any connection but what else if different about a QL equiped GC?

2011RitterGC 03-14-2011 08:19 AM

Re: Shudder, Do you have Quadra-Lift ?
 
It happens with a WOT between 40 and 50. Could it be that the QL system is having problems during WOT when going into aero mode?

JoeSchmoe007 03-14-2011 08:58 AM

Re: Shudder, Do you have Quadra-Lift ?
 
Numbers for this poll are likely to be skewed because majority of active forum members seem to have Overlands with QL standard

joebinotto 03-14-2011 09:26 AM

Re: Shudder, Do you have Quadra-Lift ?
 
Does it occur in both V6 and V8 engines?

JayB 03-14-2011 01:16 PM

Re: Shudder, Do you have Quadra-Lift ?
 
No poll selection for NO Shudder WITH Quadra Lift?

No shudder here. Laredo X V6 with Quadra Lift.

wjs81866 03-14-2011 01:20 PM

Re: Shudder, Do you have Quadra-Lift ?
 
Quote:

Originally Posted by vikingdave (Post 374670)
I have not seen anything yet that shows a link between Quadra-Lift and shudder, but I'm wondering if there might be a relationship there. If you are experiencing shudder, do you have Quadra-Lift ?

I have my Laredo with QL and have a shudder, I also have a Limited without QL and have a shudder.

vikingdave 03-14-2011 01:27 PM

Re: Shudder, Do you have Quadra-Lift ?
 
It's hard to say how meaningful the poll results are without knowing what percentage of members have QL, but it seems logical to me that the additional lift could cause some issues with fit and alignment. I also wonder if the ability to compensate for movement is diminished during high-torque situations. If so, WOT at 50MPH is exactly where you would have problems as the QL lowered. If so, it also is reasonable to expect more problems with the Hemi given the large torque difference between it and the V6. My gut is that there are many more Jeeps without QL than with them so the poll results may be very meaningful. Of all the GC's at my local dealer only maybe 20% of them have QL.

2011RitterGC 03-14-2011 03:36 PM

Re: Shudder, Do you have Quadra-Lift ?
 
Quote:

Originally Posted by JayB (Post 375262)
No poll selection for NO Shudder WITH Quadra Lift?

No shudder here. Laredo X V6 with Quadra Lift.


Good point. I have an Overland (w/QL) Hemi and 2900 miles. No shudder.

JoeSchmoe007 03-14-2011 03:38 PM

Re: Shudder, Do you have Quadra-Lift ?
 
Quote:

Originally Posted by joebinotto (Post 375095)
Does it occur in both V6 and V8 engines?

There was another poll here and nobody with V6 reported shudder if I remember correctly.

Frank G 03-14-2011 05:33 PM

Re: Shudder, Do you have Quadra-Lift ?
 
V6 with QL2, No shudder on my end.


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