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  #1  
Old 09-25-2012, 01:51 PM
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Default How to change 3rd gen spark plugs

Here is a list of what you will need:
16 spark plugs. I ran NGK 5306 copper
anti seize
5/8 magnetic spark plug socket (or rubber boot, but magnetic worked better)
extensions (I had 3 of different lengths)
Screwdrivers
10mm socket
CLEAN towel
Spark Plug Gap Tool
Step stool
ft lbs torque wrench

first thing I always do is get a clean towel to put over my fenders so that I don't screw up my paint when leaning on it.
PASSENGER SIDE
Next I removed my air filter and the hemi hat and set aside so I can get to the plugs alot easier (two bolts and I can't remember what size they were )
You can now start to remove your spark plugs but do one at a time.
The 1st plug (working from front to back passenger side) will have a coil over it and you can't see the boot. There are 2 10mm bolts that hold that on then it pulls out just like a normal boot. Once that is removed by pulling the boot up you see why you need that magnetic spark plug socket and the extensions. For these first few you can put the socket on the extension and lower to the plug. once plug is out, you can get a new spark plug, gap it .045 and put a little anti seize on the threads.
Now you can lower the plug in using the socket and extension. DON'T LET IT DROP it could damage the plug and change your gap.
You will want to start the threads by hand before you attach it to a socket to tighten, and they are 13ft lbs on each. Once done put the coil/boot back on with the 2 10mm bolts

The next plug on passenger side is a "normal" plug and you just have to remove the boot and the removal/installation is the same.

Your spark plugs will go coil, boot, coil, boot, coil, boot, coil, boot SO you will repeat the steps above for all along the passenger side. Some spots are tight and you will have to put the socket in and then attach your extension. HELPFUL HINT: On the passenger side by the firewall there is a plastic hose-clamp/holder. It comes apart very easily with a clip and it will make your job a lot easier when working by the firewall.

Drivers side
This is the side that sucks because of the brake booster. I lifted the truck up, removed tire, and removed the inner fender by removing i think 6? bolts that I believe are 10mm? (sorry if I am wrong it has been about a month). There is also your abs sensor wire attached by a clip the just pulls out.

This side is the same as the other and from front to back it goes boot, coil, boot, coil, boot, coil, boot, coil.
I would start with the hardest one by the fire wall on go to the front. So by the firewall will have 2 10mm bolts and once you get it out this will be one as well as the next few past the brake booster, that you will have to drop the socket in and then the extension. side-note, be happy because the front 2 or 3 you can do from above if you want, and you just saved A LOT OF MONEY

If you have questions just ask. I will help if I can.
Sorry my details aren't the best, as it has been a month
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  #2  
Old 10-07-2012, 01:14 AM
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Great write up. Thanks for all the info.
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Old 10-07-2012, 05:07 PM
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Great write up
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Old 10-08-2012, 06:27 PM
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im confused why is there a need for 16 plugs instead of 8?
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Old 10-08-2012, 09:58 PM
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Lol that's a good question, I guess for better spark, and just making it easier?
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Old 10-08-2012, 10:04 PM
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there are 2 plugs per cylinder. From my understanding you have one plug fire normally and the 2nd plug fires to help burn off fuel on exhaust side. I believe this was done so that dodge could pass emissions standards

Last edited by 99gp; 10-08-2012 at 10:06 PM.
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Old 10-08-2012, 10:19 PM
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The 2 plugs also fire on the combustion cycle to create a dual burn front in the chamber resulting in a faster and more complete burn in the short burn duration, also reduces emissions, plus it is almost required with our semi-hemi chamber design.
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Old 10-09-2012, 07:43 AM
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great info thanks
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Old 10-09-2012, 02:09 PM
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and they wanted it to cost us more money when we got confused and took it to the dealership to get fixed the first time!
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Old 10-09-2012, 03:38 PM
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yea when i was told my hemi had 16, i was like wtf? and felt so stupid....
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