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Unread 01-01-2012, 08:17 PM   #16
tjkj2002
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Quote:
Originally Posted by crd05il View Post
Only the KJ had a diesel option 05-06. The KK did not. The diesel has 295 foot- lb of torque lot of fun to have and get up to 30 mpg.
Only true for the US.KK's have the CRD also but only for export.

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Unread 04-25-2012, 12:34 AM   #17
Katmandu
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Quote:
Originally Posted by diggerfreek View Post
Refreshed motor.
I don't think so. The 2012 KK I'm going to buy has the exact same specs as my 2005 KJ.

I hope someone proves me wrong and this engine was refreshed. Can someone prove this ?
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Unread 04-25-2012, 07:54 AM   #18
Katmandu
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In 2005, the 3.7 engine was treated to numerous economy and idle-quality changes, with a new cam profile, lash adjusters, rings, and a 9.7:1 compression ratio.

I've never seen, heard or read about any other changes/upgrades to the 3.7 engine since 2005.

Perhaps there was.

Anyone ?
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Unread 04-25-2012, 01:38 PM   #19
MoD
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Quote:
Originally Posted by Katmandu View Post
In 2005, the 3.7 engine was treated to numerous economy and idle-quality changes, with a new cam profile, lash adjusters, rings, and a 9.7:1 compression ratio.

I've never seen, heard or read about any other changes/upgrades to the 3.7 engine since 2005.

Perhaps there was.

Anyone ?
that might explain why my 05 gets better mileage that my brother's 03 although his has less miles and is freshly rebuilt
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Unread 09-13-2012, 10:37 AM   #20
ronj75
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The engine in my kj is possibly blown (head gasket). A local garage has a kk that someone rolled. Is it possible to easily swap the engines? Or am I asking for a nightmare? Understandably it would be engine/ecu swap. Would that mean my vin would change since that's on the ecu program? What else would have to be swapped? -- garage wants 1100 for the swap or 3000 for a rebuild on mine. Obviously I'd like to go cheaper lol.
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Unread 09-13-2012, 10:42 AM   #21
tjkj2002
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Quote:
Originally Posted by ronj75 View Post
The engine in my kj is possibly blown (head gasket). A local garage has a kk that someone rolled. Is it possible to easily swap the engines? Or am I asking for a nightmare? Understandably it would be engine/ecu swap. Would that mean my vin would change since that's on the ecu program? What else would have to be swapped? -- garage wants 1100 for the swap or 3000 for a rebuild on mine. Obviously I'd like to go cheaper lol.
Not even close to being able to swap a KK 3.7 into your '02 KJ.It would require the whole KK's wiring and all the computers since the KK's 3.7 is throttle by wire and you would have to use the KK's braking system as that is all tied into the PCM also since the KK also has ESP and will not run right without it.

Basically in the long run it would cost more then buying a new KK and then some.Just rebuild the engine you already have or get a remaned one and install.
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Unread 09-14-2012, 12:02 AM   #22
Poncherello
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You can also look at AllPar, I think in the Liberty section of the forum, there was article about the 3.7. If I remember correctly 2002-2005, 2005, 2006-2010 although they are all 3.7's emissions had changed causing them make all sorts of internal changes as well as computers. Tjkj2002 is right.

It's sad I remember back in the mid 80's my neighbor swapped his 350 out of his 84' Z-28 for an 86' 454 from a wrecked Chevy 2500. He ran a 4" single pipe and heatsheild and amazing enough it passed emissions. The real amazing thing about it was that you could take off in 5th gear and run 12.3 1/4mi Anyway, things are a bit different now lol
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Unread 10-15-2012, 04:11 AM   #23
vehtech1973
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my bud is thinking about doing a crd swap in his kk out of a wrecked 06 kj, what are your thoughts on this, i know kk's in europe still have diesels.
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Unread 10-17-2012, 11:16 PM   #24
Poncherello
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Quote:
Originally Posted by vehtech1973 View Post
my bud is thinking about doing a crd swap in his kk out of a wrecked 06 kj, what are your thoughts on this, i know kk's in europe still have diesels.
A Diesel would be awesome, but before installing it unless you are overseas you will have difficulty passing it through inspection. I think you have to go with a motor made in your year or later.

On the flip side, it would be very expensive to do also. The computer work would be the biggest pain.

What I would think would be neat mod would be ridding the 4spd trans and replacing with a 5spd. I think the computer reprogamming would be a nightmare.
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Unread 04-02-2013, 09:58 PM   #25
Gunpowder
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Quote:
Originally Posted by ivounnerry View Post
KJ (Pre Lowered). . . . . KK
Approach Angle - 37.2. . .Approach Angle - 39.1
Breakover Angle - 21.8. . Breakover Angle - 20.4
Departure Angle - 31.5. . Departure Angle - 32.1
Ground Clearence - 8.1. . Ground Clearence - 7.7
So what do they call the KJ made in the first 6 months of the 2002's then? And who knows what I am talking about
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Unread 04-03-2013, 11:19 PM   #26
tjkj2002
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Originally Posted by Gunpowder View Post
So what do they call the KJ made in the first 6 months of the 2002's then? And who knows what I am talking about
If your talking about pre-lowered KJ's they did that on April 12th 2002.They started the model year '02 KJ production in March of '01.
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Unread 04-03-2013, 11:34 PM   #27
Gunpowder
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Originally Posted by tjkj2002 View Post
If your talking about pre-lowered KJ's they did that on April 12th 2002.They started the model year '02 KJ production in March of '01.
I always had it in my head that it was the first 6 months of the model year 2002 (ya made in 2001). I think a parts company told me that when they were trying to decide which appropriate part to order.

That 1/2 through the year the 2002's were lowered. You indicate most of the 2002 models were higher.
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Unread 04-04-2013, 07:22 AM   #28
tjkj2002
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Quote:
Originally Posted by Gunpowder View Post
I always had it in my head that it was the first 6 months of the model year 2002 (ya made in 2001). I think a parts company told me that when they were trying to decide which appropriate part to order.

That 1/2 through the year the 2002's were lowered. You indicate most of the 2002 models were higher.
Yeah 13 months of '02 KJ did come 3/4" higher while the last 5 months of the '02 KJ was lowered by 3/4".
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Unread 07-31-2013, 01:58 PM   #29
seabass1858
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mine is a pre lowered kj but it already sagged over the years and I couldnt even tell.
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Unread 12-12-2013, 04:28 PM   #30
jp4ever
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Hey I know that a a Jeep Cherokee is not a Jeep KJ. But you had to chose which one would you chose? P.S. Im using my dads username.
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