05/30 Q/A Session - 2005 - 2007 Grand Cherokee - Page 10 - JeepForum.com
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Unread 05-30-2007, 04:56 PM   #136
CDN WK
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Why did they change the door hinges on the '07's the '05-'06 look better and close/open more smoothly.
Also why did you remove the plastic covers under thehood over the headlights.

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Unread 05-30-2007, 04:59 PM   #137
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Quote:
Originally Posted by oH2o
The Trailhawk is a kick-*** design, how has the feedback/interest level been so far, say compared to the popular 1999/2000 Commander concept?
What specifically did you like about it? This may help us on future programs.

There has been response both positive and negative on certain features on the vehicle. We don't have specific numbers to compare to previous concept vehicles.
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Unread 05-30-2007, 04:59 PM   #138
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Well, since this is getting close to the end:

Thanks for taking the time to answer the forum member's questions. Hopefully, we can have the next session arranged in the not-so-distant future!

Thanks again,
Chris
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Unread 05-30-2007, 04:59 PM   #139
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I know you cannot discuss future product, but just want to say I looked at my crystal ball and saw the letters "V V T"

I'm glad you guys are keeping up with the latest technologies! Keep up tyhe good work. While the WK may not be perfect it is an incredible vehicle and I love driving mine each and every single day.
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Unread 05-30-2007, 05:01 PM   #140
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Quote:
Originally Posted by oH2o
I know you cannot discuss future product, but just want to say I looked at my crystal ball and saw the letters "V V T"

I'm glad you guys are keeping up with the latest technologies! Keep up tyhe good work. While the WK may not be perfect it is an incredible vehicle and I love driving mine each and every single day.
Thanks! We love your feedback!
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Unread 05-30-2007, 05:01 PM   #141
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Quote:
Originally Posted by JeepEngineers
What specifically did you like about it? This may help us on future programs.

There has been response both positive and negative on certain features on the vehicle. We don't have specific numbers to compare to previous concept vehicles.
How about a future session that would cover/discuss "Ideas" for the next generation WK? This was recently done with the SRT engineers sessions and brought in some great suggestions.
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Unread 05-30-2007, 05:02 PM   #142
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Are the diesel's being offered in NY? We have a law that only allows the sale of commercial diesel vehicles new.
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Unread 05-30-2007, 05:03 PM   #143
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The transmission in my '97 is having some shifting difficulty.

While in D and accelerating, the transmission will attempt to shift from 1st to 2nd but 2nd doesn't always engage or if it does engage it just "pops" back out again and the engine revs. Manually placing the shifter in 1st and then building up some speed and then shifting into D works to bypass 2nd and then OD works normally as speed steadies. When decelerating and then accelerating (as in a curve) the transmission will downshift into what feels like 2nd gear followed by two distinct changes changes in RPM which I -believe- is the upshift to D and OD. When coming to a stop, the transmission will not downshift to 1st; instead it stays in D. Manually selecting 1st while at a stop works and the cycle from the top of this description can be repeated.

This was an on-again off-again problem. The trouble began a couple of weeks ago and lasted 1 day then it was fine for a week. Trouble has resurfaced and is now constant.

Any insight into the possible cause would be appreciated. Thanks!

- Brian
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Unread 05-30-2007, 05:03 PM   #144
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Quote:
Originally Posted by micifus
Are the diesel's being offered in NY? We have a law that only allows the sale of commercial diesel vehicles new.
Unfortunately the Diesel is a 45 state only package at this time. Lobby your senators and congressmen/women to let us sell it there!
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Unread 05-30-2007, 05:03 PM   #145
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WK Achievement

Quote:
Originally Posted by Colo.kid
IMO the WK is the best off-road capable SUV now available and is a significant improvement over the previous model (despite the SFA issue).

Compared to the previous models the WK offered an extensive list of fairly major changes when it was first introduced. From strictly an engineering standpoint, what feature gave you the greatest challange or sense of satisfaction.
From my personal perspective, I was heavily involved in the software development of the QDII system. Obviously, positive reviews from the public and individuals such as yourself directly related to the performance of the QDII system provide the greatest satisfaction. Winning Peterson's 4x4 of the year was also nice!

From a technical perspective, we are all really happy with how we were able to get the system to perform having all the ESP sensor information at our disposal. This allowed us to be very agressive when rock crawling, yet minimize binding while turning. There is just no way to do this with a purely mechanical only system. The electronics and sensors allow this vehicle to really be a point-and-shoot type system.

Thanks for your comments!
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Unread 05-30-2007, 05:04 PM   #146
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Quote:
Originally Posted by JeepEngineers
A lot of us feel this way too...

The only way we can get this type of package is to have YOU keep asking for it. We don't offer an up-country suspension on any current Jeep model including the Rubicon. For most of our customers, the IFS offers more capability than they will ever need. With the QuadraDrive II system, even fanatical customers have found the IFS to be adequate - what may be lost in articulation is made up for in traction. (Of course we understand that for the most severe rock crawling the SFA is superior.) You can see where the market is though - there are only 4 SFA vehicles available in the US (Jeep Wrangler, Dodge Ram Heavy Duty, Mercedes G-wagen, and another brand heavy duty truck )

It is more of a market demand thing than an engineering thing.

Thanks for your input!
It' a relief to hear the Jeep engineers say that. well put my vote in for an SFA rubicon style edtion and please keep up with the jeep heritage. (hint to you for a concept). I'm a real big fan of the WK and hope to see more good things for it.. and just 3 words... think about these



lol
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Unread 05-30-2007, 05:05 PM   #147
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Quote:
Originally Posted by oH2o
Cool, I will try it, same on a '06 SRT8?

Should work like a charm on your 06 SRT8. Sweet ride.
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Unread 05-30-2007, 05:06 PM   #148
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It's 7:00 again! Thanks to everyone for asking questions tonight. This thread will be closed but you will still be able to view it after tonight.
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Unread 06-07-2007, 06:13 PM   #149
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Quote:
Originally Posted by CDN WK
Why did they change the door hinges on the '07's the '05-'06 look better and close/open more smoothly.
Also why did you remove the plastic covers under thehood over the headlights.
The hinges were changed to follow our corporate door hinge strategy. The plastic covers provided no functional benefit - you will notice no cooling differences with or without them.

Thank you for your input - we always appreciate real-world comments and use them when we evaluate future product changes.
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Unread 06-07-2007, 06:19 PM   #150
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Quote:
Originally Posted by T-Rated
From another thread:

I was working during last night's chat party, but I wish I could have asked:
How much "lock" do we get from the QDII's electronic limited slip differentials?

I don't know how to measure slip, but I just wonder how close to lockers these come.
Fellow Jeeper,

Fortunately we can measure wheel slip. The ELSD system is designed to exceed the traction available at the tire. This includes when one tire is in the air and the weight it would have supported is on the opposite tire. Wheel slip torque is a function of weight on the tire and friction between the tire and ground. This extra weight is very important to those of us who go off-road and occasionally get a tire in the air since the opposite tire is the only way left to drive the vehicle over an event.

Our goal for the QuadraDrive II system is to make sure the all the wheels always spin (whether the vehicle moves or not). From outside the vehicle you may notice a slight amount of tire slip before the ELSD engages, but you may not be able to tell from the driver's seat. This slip is required for the pump in the axle to build hydraulic pressure to force the clutches together. While this is a clutch-driven system, it is not like a conventional limited slip differential. The pump generates a very high pressure and with 20 clutch surfaces it can hold more torque than the tires can use. For this to work the ELSD have to have the torque capability of a locker, but still be able to smoothly engage and release to allow the vehicle to turn without binding.

We probably should have named them electric lockers so there was less confusion to Jeep enthusiasts, but they can vary anywhere from 0 to 100% locked.

Hope that helps!
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