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  #1  
Old 09-22-2009, 03:45 PM
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Spark plugs?

I've got about 38,000 miles on my jeep. I'm sure the plugs are original, do you guys think it would be worth my while to change them? I just watched the video of that weird guy on youtube change his plugs on his 4.7 wk, they looked really bad and gapped themselves to double the stock specs. That's the reason why i ask.
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Old 09-22-2009, 03:52 PM
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Re: Spark plugs?

i do mine 30K. always have since the start of electronic igintion. its cheap insurance if you do them yourself.......

get some anti-sieze for the threads too.

use OEM Champion replcements. any auto parts store has them.
champion number RC12MCC4
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Old 09-22-2009, 03:56 PM
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Re: Spark plugs?

Cool, thanks rob, it looked pretty easy to do. Did you use a torque wrench, or just snug em'?
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Old 09-22-2009, 04:06 PM
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Re: Spark plugs?

I did a how to Matt....hold on Ill find it for ya
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Old 09-22-2009, 04:08 PM
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Re: Spark plugs?

http://wkjeeps.com/wk_sparkplugs.htm
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Old 09-22-2009, 04:11 PM
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Re: Spark plugs?

How to change the spark plugs on a 4.7 V8 WK Grand Cherokee or Commander
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Old 09-22-2009, 04:18 PM
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Re: Spark plugs?

haha, thanks Scott, i was reading that thread, while you posted this reply. I'm really just trying to decide if it's worth my time. I'll probably do it this weekend. About an hour or so?
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Old 09-22-2009, 04:24 PM
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Re: Spark plugs?

with a tq wrench, taking the intake off etc. yeah about an hour.....
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Old 09-22-2009, 05:54 PM
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Re: Spark plugs?

Cool, is it worth it?
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Old 09-22-2009, 06:03 PM
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Re: Spark plugs?

I couldnt tell a difference...but my truck had like 28k miles
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