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Unread 08-14-2008, 03:00 PM   #1
JeepEngineers
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09/09 Q/A Session - Jeep Wrangler and Wrangler Unlimited

THIS THREAD WILL BE OPENED TO QUESTIONS ON 9/9 @ 5PM EASTERN STANDARD TIME.

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This Q/A Topic: Jeep Wrangler and Wrangler Unlimited

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Last edited by JeepEngineers; 09-08-2008 at 09:40 AM..
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Unread 09-09-2008, 03:01 PM   #2
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We are live - go ahead and post your questions!
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Unread 09-09-2008, 03:11 PM   #3
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Bring it on people !
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Unread 09-09-2008, 03:11 PM   #4
Matt08jk
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Hi All,

Thanks for the amazing product.

For my first question...

I have been hading issues with a warped header on the softop. It has developed a slight m-shape at the windshield which lets air through generating a swirly whistling sound.

What materials make-up the rigid header that would be suseptable to this. I am able to freely slip a business card unter the humps in front of each occcupant.

Cheers

Matt
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Unread 09-09-2008, 03:12 PM   #5
jeepcrd2010
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Diesel upgrade package JK option

In absence of a diesel wrangler option, I would pay $4,000 extra for the current wrangler if it was offered with extra motor mounts, wiring inputs, and computer for the new 4.2 L Cummins Diesel motor or other suitable High torque diesel motor.

can you consider it

In addition here is how I value other engine options:

$40,000 = 4.2 L V6 Cummins Diesel
$35,000 = 3.5 L V6 Honda Diesel
$35,000 = 3.0 L I4 Benz Diesel
$32,000 = 2,8 L) I4 VM Diesel
$30,000 = 4.0 L V6 Phoenix Gas Engine
$15,000 = 3.5 L V6 Phoenix Gas Engine
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Unread 09-09-2008, 03:14 PM   #6
kokalreb
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I drive a 2005 Wrangler and it has turned out to be a very indudtrious vehicle. (My friend used it to nudge a boat over a cliff with the front bumper no problem.) Is there a reason why the newer models have fog lamps built into the bumpers instead of above like the old ones?
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Unread 09-09-2008, 03:14 PM   #7
JeepEngineers
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Quote:
Originally Posted by jeepcrd2010 View Post
In absence of a diesel wrangler option, I would pay $4,000 extra for the current wrangler if it was offered with extra motor mounts, wiring inputs, and computer for the new 4.2 L Cummins Diesel motor or other suitable High torque diesel motor.

can you consider it

In addition here is how I value other engine options:

$40,000 = 4.2 L V6 Cummins Diesel
$35,000 = 3.5 L V6 Honda Diesel
$35,000 = 3.0 L I4 Benz Diesel
$32,000 = 2,8 L) I4 VM Diesel
$30,000 = 4.0 L V6 Phoenix Gas Engine
$15,000 = 3.5 L V6 Phoenix Gas Engine

Emission is a real struggle right now with Uncle Sam regulations. Especially with the new 2010 regulations coming !
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Unread 09-09-2008, 03:15 PM   #8
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Quote:
Originally Posted by kokalreb View Post
I drive a 2005 Wrangler and it has turned out to be a very indudtrious vehicle. (My friend used it to nudge a boat over a cliff with the front bumper no problem.) Is there a reason why the newer models have fog lamps built into the bumpers instead of above like the old ones?

Really boils down to styling and aerodynamic concerns
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Unread 09-09-2008, 03:16 PM   #9
Matt08jk
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Oh and another...since it is a slow start...

When I start up my Unlimited Sahara after at least 12 hours, I can hear a 1-3 second long subtle rattling sound that is quite remenicent of an oiling system that lags behind. Are you aware of issues with oil filtration systems draining back during non-use?
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Unread 09-09-2008, 03:17 PM   #10
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Quote:
Originally Posted by jeepcrd2010 View Post
In absence of a diesel wrangler option, I would pay $4,000 extra for the current wrangler if it was offered with extra motor mounts, wiring inputs, and computer for the new 4.2 L Cummins Diesel motor or other suitable High torque diesel motor.

can you consider it

In addition here is how I value other engine options:

$40,000 = 4.2 L V6 Cummins Diesel
$35,000 = 3.5 L V6 Honda Diesel
$35,000 = 3.0 L I4 Benz Diesel
$32,000 = 2,8 L) I4 VM Diesel
$30,000 = 4.0 L V6 Phoenix Gas Engine
$15,000 = 3.5 L V6 Phoenix Gas Engine
Thanks for the input - it's good to know what people are willing to pay for a diesel option, it helps with bulding any potential business case. The biggest issue is of course emissions related and what it takes to meet the standards. We are of course always examining the alternatives and gauging customer interest.
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Unread 09-09-2008, 03:18 PM   #11
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Quote:
Originally Posted by kokalreb View Post
I drive a 2005 Wrangler and it has turned out to be a very indudtrious vehicle. (My friend used it to nudge a boat over a cliff with the front bumper no problem.) Is there a reason why the newer models have fog lamps built into the bumpers instead of above like the old ones?
The fog lamps are in the bumper as part of a design cue. In addition if the fog lamps were located in between the flares (in front of grille) they would not meet all FMVSS requirements for visibility.
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Unread 09-09-2008, 03:18 PM   #12
mdls4
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Hi Guys. I'm a 2008 JK Rubicon owner from Australia. I have asked every person I know in the industry in Australia, and can't get a straight answer to my question. I want to modify the exhaust in my JK, including the replacement of the cats - with aftermarket "hi flow" cats. My concern is that 1. May cause issues with 02 sensor warning lights. 2. Result in putting the engine in limp mode, like other modern vehicles today. Am I right with assuming these two issues? Is it safe to modify my exhaust (Headers, Hi flow cats)? Any answers from the experts would be great! Note - not sure if there is a difference in the exhaust between the US and Australian JKs?
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Unread 09-09-2008, 03:19 PM   #13
JeepEngineers
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Quote:
Originally Posted by Matt08jk View Post
Hi All,

Thanks for the amazing product.

For my first question...

I have been hading issues with a warped header on the softop. It has developed a slight m-shape at the windshield which lets air through generating a swirly whistling sound.

What materials make-up the rigid header that would be suseptable to this. I am able to freely slip a business card unter the humps in front of each occcupant.

Cheers

Matt


The header is a composit plastic material. If you are experiencing wind noise take the vehicle back to the dealership and request a replacement header.
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Unread 09-09-2008, 03:20 PM   #14
JeepEngineers
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Quote:
Originally Posted by Matt08jk View Post
Oh and another...since it is a slow start...

When I start up my Unlimited Sahara after at least 12 hours, I can hear a 1-3 second long subtle rattling sound that is quite remenicent of an oiling system that lags behind. Are you aware of issues with oil filtration systems draining back during non-use?
Manual or Auto?
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Unread 09-09-2008, 03:23 PM   #15
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Quote:
Originally Posted by mdls4 View Post
Hi Guys. I'm a 2008 JK Rubicon owner from Australia. I have asked every person I know in the industry in Australia, and can't get a straight answer to my question. I want to modify the exhaust in my JK, including the replacement of the cats - with aftermarket "hi flow" cats. My concern is that 1. May cause issues with 02 sensor warning lights. 2. Result in putting the engine in limp mode, like other modern vehicles today. Am I right with assuming these two issues? Is it safe to modify my exhaust (Headers, Hi flow cats)? Any answers from the experts would be great! Note - not sure if there is a difference in the exhaust between the US and Australian JKs?

Stongly recommend NOT doing that. The catalyst and O2 sensors are indeed an integral part of the engine management system.

Some folks do change the muffler for a deeper sound...... that won't hurt, but we don't want you to modify your vehicle.

Exhaust is the same as US I am pretty sure.
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