optima yellow top question 3.6 - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 9 Old 01-08-2015, 05:13 PM Thread Starter
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optima yellow top question 3.6

The battery in my 12 JKUR froze the other day when it was -50 windchill. So I went out and bought a yellow top. I went to install it and the clamps on the harness won't reach the terminals. I got a group 34 and it came with the group 48 adapter so it should work.
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post #2 of 9 Old 01-08-2015, 06:06 PM
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optima yellow top question 3.6

Weird. Group 34 Yellowtop fit in mine, no problem....funny though, it just died after 4 years. Replaced w a Duralast. So many people have posted poor luck w the Yellowtops I didn't feel like spending the money on another one.

Edit: now that I look at your pics, the 2012 battery is situated different than my 2008.

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post #3 of 9 Old 01-08-2015, 06:08 PM Thread Starter
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Do you have a 3.8 or 3.6? Everyone I talked to said that the 3.8 has longer battery cables.

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post #4 of 9 Old 01-08-2015, 06:09 PM
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Quote:
Originally Posted by Mason View Post
Do you have a 3.8 or 3.6? Everyone I talked to said that the 3.8 has longer battery cables.

He put 3.6 in the title and I didn't even notice it either.

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post #5 of 9 Old 01-08-2015, 06:43 PM
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I think I had to follow the battery cables to where they were being held to something in the engine compartment and undo it to give them a little slack.
A few months ago I was on Optima's website and they don't show an application for the 2012+Wrangler.
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post #6 of 9 Old 01-08-2015, 06:49 PM
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I think I read somewhere that the battery cables are secured to the box (-) and the firewall (+) by zipties... Don't know if cutting them would present different problems though, I have a 3.8

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post #7 of 9 Old 01-08-2015, 06:50 PM Thread Starter
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I was on their website tonight and they recommend the group 34, (which this is) even tho the 3.6 JKs require a group 48. The 34 comes with an adaptor for the base to fit the 48 tray. It looks like there is black plugs under my clamps. Do you know if they are alternate mounting spots for the terminals?

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post #8 of 9 Old 01-08-2015, 06:59 PM
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I just went outside and looked. Mine is just like yours.
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post #9 of 9 Old 01-08-2015, 07:20 PM Thread Starter
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Turns out I didn't put enough time into searching my engine bay to find slack due to it being around 0*F before the windchill, which is strong and blowing on the front of the jeep. After removing 2 Christmas trees clips on the battery tray, cutting a zip tie on the firewall behind the plastic engine cover, and coming inside 3 times to warm up my near frost bitten fingers, I was able to gain just enough slack to hook up the battery how it sits in the pictures. The jeep lives again. For still being under warranty I seem to say that a lot.

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