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  #11  
Old 04-04-2014, 05:51 PM
Red-Stripe Red-Stripe is offline
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Quote:
Originally Posted by smokn1500sport View Post
I can only speak from my own experience, that said my 2012 Sport CC's plugs were just about done in at 34,000. These stockers are copper plugs and are set to be swapped out ak 32k mile intervals (per the manual). There is no way the truck would have been any fun to drive if those plugs had been left any longer. I picked up the set through orielys'. The swap was nothing to involved and I had just under two hours into it. Picked up just over 3 mpg (hand calculated) after the swap.

Copper plugs can go double 32k miles with no issues.
What was wrong with your plugs? You should have developed an emission derived MIL light if they were misfiring that bad. Bad enough to cause a 3 MPG worth of unused fuel out the tail pipe. Did you have a MIL light on?
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  #12  
Old 04-05-2014, 07:35 PM
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-3MPG sounds a little extreme to me, I getting close to 50,000 miles and my truck runs better than when new.
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  #13  
Old 04-05-2014, 08:17 PM
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I only had 8 plugs to change on my first 4.7 1500, did it at about 55K and they needed it. probably were the original plugs. Noticeably smoother idle. Planning on a new Hemi this month so dreading the 16 plug change in the future. If you can reach them it's only nuts and bolts so it's a DIY project for most people.
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  #14  
Old 04-06-2014, 09:57 AM
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Now's a good time to bring up an important missed angle to this:

8 of the 16 plugs are there to help pass emissions by post firing another cylinder.
Think about that, to help emissions.
This is a 2012 truck and less than 2 years later, you, are paying out of your pocket to replace a failed emission component. That's outrageous.

Second: Some of these trucks aren't even past the 'bumper to bumper' 3 year 36k miles warranty, and you are paying out of pocket to fix an emission related problem? Outrageous! It's outrageous Chrysler has the audacity to print a customer paid ignition component replacement at an interval shorter than the bumper to bumper warranty.

Last edited by Red-Stripe; 04-06-2014 at 10:05 AM.
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  #15  
Old 04-06-2014, 08:54 PM
jdinjersey jdinjersey is offline
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Default Spark Plug manufacturer recommendations

Giles

Can you tell me which manufacturer's plug came out?
I've read Champions or NGK's.
I have a 2011 and will be changing mine out when the weather
warms up a little.
Thanks, Jdinjersey
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  #16  
Old 04-07-2014, 11:34 AM
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Giles24 Giles24 is offline
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Quote:
Originally Posted by jdinjersey View Post
Giles

Can you tell me which manufacturer's plug came out?
I've read Champions or NGK's.
I have a 2011 and will be changing mine out when the weather
warms up a little.
Thanks, Jdinjersey
I already had the Champions to put in as it's what I've always used and a 50/50 it already had them... NGK's came out. Haven't noticed a big difference other than responsiveness, so I'll use NGK next time to see any differences.
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  #17  
Old 04-07-2014, 11:38 AM
2010x3.92 2010x3.92 is offline
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Mine came out at 60k on the dot this weekend. They looked fine. They had less than .003 wear from spec. The only difference I have noticed is maybe slightly smoother operation while in MDS mode.
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  #18  
Old 04-09-2014, 08:26 AM
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We run our 5.7's 100K before change, (actually re-gapped last set and re-installed them! on one truck we use locally!) Use factory plugs (and parts). Picker.
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  #19  
Old 04-09-2014, 11:48 AM
ghorn ghorn is offline
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I hear you Red-Stripe...but spark plugs are specifically excluded from warranty. It's in print.
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  #20  
Old 04-10-2014, 06:28 PM
Red-Stripe Red-Stripe is offline
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Chrysler can try to sleaze their emission design shortcomings on uninformed, and/or unsuspecting owner's "warranty" literature, but federal law requires at an absolute bare minimum, 2 years, 24,000 miles warranty on spark plugs. And yes.. they are part of the federal defined emission system, despite what Chrysler prints.

Almost every other reputable car maker warranties their engine's spark plug and coil design for 5 years. U.S. States have started to require aminimum 3 year warranty on plugs. Why wouldn't you?... It's an integral part of the engine emmisions system. Not Chrysler... They want the buyer to replace engine emission parts before even their basic warranty is over. That's really sad in this day and age....

Don't make me bring up again the fact that this particular engine uses 8 extra plugs that have a main design purpose of reducing engine emmisions to an acceptable federal level.... and the Chrysler's consumer is doped into thinklng he/she has to pay for those parts replacement under the "bumper to bumper warranty".....

Last edited by Red-Stripe; 04-10-2014 at 06:38 PM.
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