2010 Jeep JKU Sport - JeepForum.com
 
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post #1 of 14 Old 12-10-2018, 05:05 AM Thread Starter
PinkyLaDunker
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2010 Jeep JKU Sport

Hello! We’ve owned other Jeeps in the past (CJ, YJ and TJ) but now looking at a 2010 JKU $13,500 It has 140,000 miles and a rebuilt transmission (auto). Other than the obvious, what are some things I need to look for when purchasing a Jeep of this age/ year model?

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post #2 of 14 Old 12-10-2018, 11:59 AM
2jhanna
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I'm not a JK owner, but from what I've read here, pre 2012 JKs had the 3.8v6 engine, as opposed to the post 2012, which has the 3.6v6.

The 3.8 being the least desirable.

I am multi-talented, I can talk and piss you off at the same time.

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post #3 of 14 Old 12-10-2018, 01:44 PM
Randglerjk
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My jeep is a 2010 auto. Sport unlimited 4d. Has 104k miles. Youd be a fool to pony up that kind of money for a car with 140k miles. You need to look at higher years with less miles and same cash price if thats how much you want to pay. You might even want to wait tip next year. In a few days, all used cars become 1 year older and the price fluctuates.


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post #4 of 14 Old 12-10-2018, 01:58 PM
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But if you really want to buy it, here is a list of things wrong with my jeep and things i pay attention to:

Soft top air and water leaks. Original soft top. This im sure i could fix but ... you know.

Tpms light for the tiires. Forget about it.

Turn signal switch replaced to fix headlights from turning off.

New spark plugs, distributer and ignition cables. Car had an engine light one day. Engine misfire. Problem solved.

Parking brake adjusted..easy fix.

And thats it.




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post #5 of 14 Old 12-10-2018, 01:58 PM
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Quote:
Originally Posted by 2jhanna View Post
I'm not a JK owner, but from what I've read here, pre 2012 JKs had the 3.8v6 engine, as opposed to the post 2012, which has the 3.6v6.

The 3.8 being the least desirable.


Why is it less desirable?


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post #6 of 14 Old 12-10-2018, 06:30 PM Thread Starter
PinkyLaDunker
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Quote:
Originally Posted by Randglerjk View Post
But if you really want to buy it, here is a list of things wrong with my jeep and things i pay attention to:

Soft top air and water leaks. Original soft top. This im sure i could fix but ... you know.

Tpms light for the tiires. Forget about it.

Turn signal switch replaced to fix headlights from turning off.

New spark plugs, distributer and ignition cables. Car had an engine light one day. Engine misfire. Problem solved.

Parking brake adjusted..easy fix.

And thats it.




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Thanks! I passed on this one. The TPMS light was on and a mechanic friend said to run away. Not sure why though.
Top was a replacement and looked to be in great shape.

As far as the price it’s the going price for one here in SC. JKUs are fetching top dollar. It’s normal to see a 2007 with 140K miles and people pay $13-15K all day long for them.
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post #7 of 14 Old 12-10-2018, 06:32 PM Thread Starter
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Quote:
Originally Posted by Randglerjk View Post
My jeep is a 2010 auto. Sport unlimited 4d. Has 104k miles. Youd be a fool to pony up that kind of money for a car with 140k miles. You need to look at higher years with less miles and same cash price if thats how much you want to pay. You might even want to wait tip next year. In a few days, all used cars become 1 year older and the price fluctuates.

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That’s pretty average asking price here in Charleston SC for a JKU with that kinda miles, any Jeep Wrangler really. They fetch a pretty penny here.
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post #8 of 14 Old 12-11-2018, 09:00 AM
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Quote:
Originally Posted by Randglerjk View Post
Why is it less desirable?


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The 3.8L/42RLE engine/transmission combo is less than optimal. The 42RLE with the 3.8L just doesn't have the power the 3.6L/MAG1 combination has. The gearing ratios just are not right.

Many 3.8L engines have excessive oil use which was either the rings installed improperly or a porous block.

The 3.6L has more horsepower than the 3.8, the NAG1 has far better gearing than the 42RLE.

If looking at a stick, it's a bit better between the 2 but the Pentastar is just a better engine than the 3.8L.

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post #9 of 14 Old 12-11-2018, 09:06 AM
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Dang, now i forgot which motor my jk 2010 has. I think its the 3.6 ...
Where can i find the label or an ID on the engine to make sure?


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post #10 of 14 Old 12-11-2018, 09:26 AM
2jhanna
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Originally Posted by Randglerjk View Post
Dang, now i forgot which motor my jk 2010 has. I think its the 3.6 ...
Where can i find the label or an ID on the engine to make sure?


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3.6 wasn't until 2012.

I am multi-talented, I can talk and piss you off at the same time.

jhanna
denton county, tx
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post #11 of 14 Old 12-11-2018, 09:38 AM
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Originally Posted by Randglerjk View Post
Dang, now i forgot which motor my jk 2010 has. I think its the 3.6 ...
Where can i find the label or an ID on the engine to make sure?


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Nope, It's a 3.8L. 2012 was the first year of the 3.6L Pentastar.

06 KJ
12 JK, 2.5" Teraflex lift, Bilstein 5100's, BFG KM3's 37x12.5/R17
17 WK2 Trailhawk
KN4BBA
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post #12 of 14 Old 12-11-2018, 09:41 AM
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Well then, lol. It doesn’t burn oil and it drives like a truck lol. Very torquey but only on the low end. No high end power thats for sure. But thats definitely by design not so much because of bad quality manufacturing.


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post #13 of 14 Old 12-11-2018, 09:46 AM
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I didn't say they all use oil, I said many do.

It is one of the things to look for if buying a JK with the 3.8L.

I will always recommend the 3.6L over the 3.8L. I believe the 3.6L combination is that much better. In fact, I like the 3.6L so much, my wife's Grand Cherokee was bought with it over the hemi. She doesn't need the hemi and the Pentastar is a solid motor.

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12 JK, 2.5" Teraflex lift, Bilstein 5100's, BFG KM3's 37x12.5/R17
17 WK2 Trailhawk
KN4BBA
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post #14 of 14 Old 12-11-2018, 10:00 AM
Randglerjk
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I got a gut feeling the transmission wasn’t built to last on it tho. Might have to do a tranny oil change soon.


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