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Unread 07-12-2007, 03:44 PM   #121
Filmpros
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Did the re-toolling in 2008 address some of the build quality issues?

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Unread 07-12-2007, 03:44 PM   #122
JeepEngineers
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Quote:
Originally Posted by scottlaroc
Question regards steering knock.I noticed after driving a few minutes and the engine has warmed up there is a knocking sensation up through the steering shaft.Is this a design flaw and are there any remedies for it?Thank you.

Not familiar with this issue.
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Unread 07-12-2007, 03:44 PM   #123
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Quote:
Originally Posted by Crashnburn80
First off thanks for taking the time to awnser our questions on the forum.

I have a TJ wrangler question: I just changed my axle fluids in my 04 Rubicon. My 2004 FSM says both front and rear D44s require 75w-140. However when changing the fluid I noticed the tag on the rear diff said 75w-140 (as expected) while the tag front diff said 80w-90 (same as D30).

So what weight is right for the front D44, the 75-140 specified by the FSM or the 80w-90 specified by the diff tag?

The axle lube weight changed mid year. The tag on the axle is correct. The heavier weight fluid was not needed. In theory you will get slightly better fuel economy with the lighter fluid, but I wouldn't count on noticing a difference.
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Unread 07-12-2007, 03:45 PM   #124
scottlaroc
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While driving im hearing rattling sounds coming from the drivers side interior.The noise seems common among new Jeep owners.It seems its coming from where the seatbelt extension between the front and rear door.Thanks again
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Unread 07-12-2007, 03:45 PM   #125
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Quote:
Originally Posted by zband
Question for all the engineers:

If YOU could design a Jeep with NO interference from Jeep HQ, what diesel engine, available today would you put into your jeep and why?


Thanks all !!
We would get the diesel that has the most power, the best fuel economy and is the most economical to produce.
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Unread 07-12-2007, 03:45 PM   #126
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Quote:
Originally Posted by Filmpros
Did the re-toolling in 2008 address some of the build quality issues?
We are focused on quality improvement every day. We take you very seriously.
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Unread 07-12-2007, 03:46 PM   #127
tbrkek
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That is the same issue I was writing about after the engine warms up and you feel it in the steering wheel and foot pedals...same thing.

Quote:
Originally Posted by JeepEngineers
Not familiar with this issue.
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Unread 07-12-2007, 03:46 PM   #128
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Quote:
Originally Posted by Filmpros
There was a color my GF liked that they stopped production on in April of 2007. Is this common for Jeep to do? I am curious. I am new to Jeeps...own a few Land Cruisers
It is not uncommon to build out a color before the end of the model year. This may be because the color is a low volume runner. This also allows the plant to sometimes introduce a new color ahead of the next model year. This year, we introduced a new Detonator Yellow color on Wrangler that we feel looks great, especially on 2 and 4-door Rubicons ! Thanks for your interest.
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Unread 07-12-2007, 03:46 PM   #129
Ancient Mariner
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More "sneaker" squeek info. The sound is kind of like a 1/4 second bird chirp. In my case (I just took it for a test ride again) I can make it squeek in all 6 gears. Also going up a slight incline, if I take my foot off the gas and then back on again, I hear the same sound. Something is either loose or dry or going bad. I can get the sound at about 1/2 pedal throw on the clutch. The machinery in the clutch area just seems loose.

Thank you for your time on this. Rich
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Unread 07-12-2007, 03:46 PM   #130
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Quote:
Originally Posted by Filmpros
Do you have any knowledge of seat rail extension kist for the JK? I am 6'8" tall and use these in other vehicles. I realize this would be an after market item.

Or...do you know if a way to get more legroom out of a JK?
Don't know of one. We wouldn't recommend any due to various Fed Regs and the way we do crash testing.

Sorry !
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Unread 07-12-2007, 03:49 PM   #131
mendelmax
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Quote:
Originally Posted by JeepEngineers
We would get the diesel that has the most power, the best fuel economy and is the most economical to produce.
No single word about reliability... Damn, these days Jeep engineers think in other criteria than before

Joking only

And now serious question that came to my mind. Not 100% wrangler related, but still- how is the design process in Jeep organized- are there individual engineers groups for each vehicle (wrangler team, grand team etc.), or are you working all on each vehicle?
I hope you get what I mean- shortly saying, do the same people develop all the models, or does each model have its own development team.
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Unread 07-12-2007, 03:50 PM   #132
JeepEngineers
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Quote:
Originally Posted by howellru
Thanks for the techauthority link.

Last topic, I promise.

I'm considering replacing my YJ's 4.2L with a TJ's 4.0L fuel injected engine and have a couple of questions.
1. Would there be a noticeable improvement in performance and fuel effeciency?
2. Would the 4.0L bolt up directly up to my Yj's transmission and drivetrain?
3. What other hurdles and expense would be involved in such a swap?
This would be a big improvement, but remember the 4.0L has a shorter stroke than a 4.2L, so a 4.2L can theroteically be made to produce more torque than a 4.0L. Fuel economy may be a wash, or a slight improvement since a YJ is lighter than a TJ. It will bolt up to your transmission, but if you have the BA10 it may not stand up to the power increase, plus you may have an issue with mounting a crank sensor.

A couple of thoughts - get a complete engine/trans/t-case from a 1991 or newer YJ, as well as the computer to make the bolt-in easier...no issues with flywheel/crank sensor, etc.

OR

Install the Mopar fuel injection kit on your 4.2L. Complete kit that is a bolt on and the simplest way to go.

OR

Put a 4.0L head/intake on your 4.2L. The 4.0L head (especially the H.O. head from the early/mid '90's) flows much better than a 4.2L head.


Any of these options will be expensive, unfortunately....although a complete drivetrain from a 91 YJ would probably be the cheapest way to go if you get lucky and are in the right place at the right time.
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Unread 07-12-2007, 03:50 PM   #133
Filmpros
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2.)Have you been made aware of the front drive shaft clearance problems with the automatic? Several drivers have torn off the metal band that holds the boot cover on the front drive shaft while being fully flexed. The metal band catches on the transmission pan.

Is this addressed in the 2008 Model?
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Unread 07-12-2007, 03:51 PM   #134
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Quote:
Originally Posted by dakuda
Not really a future plan, since pictures are all over. I am not asking if it will be built (even though it should, with some tweaking).

How fun was the JT to work on/create? Did your group have input or hand on experience building it? Did it perform to expectations?

Now, for the one that will get "We cannot comment on future product": Why not make those simple wheels available?
It was a blast to work on! As far as input, it was a one off custom Skunk Works project, which just means the idea and execution came from fanatics like us. It performed exceptionally well at the Moab Jeep Safari on trails including Hell's Revenge and Porcupine Rim.
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Unread 07-12-2007, 03:51 PM   #135
JeepEngineers
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Quote:
Originally Posted by Filmpros
2.)Have you been made aware of the front drive shaft clearance problems with the automatic? Several drivers have torn off the metal band that holds the boot cover on the front drive shaft while being fully flexed. The metal band catches on the transmission pan.

Is this addressed in the 2008 Model?

Yes, and Yes
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