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Old 12-20-2010, 08:30 PM
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Spark Plug Change for an 06 with 5.7 Hemi

I read the post on the WKJeep website on how to change the spark plugs on my 2006 overland with a 5.7 hemi. That said I've heard from a few Jeep mechanics that it is very difficult to remove some of the rear plugs on this vehicle. Has anyone here changed the plugs on this engine? If so, any advise ?


Thanks,
John
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Old 12-21-2010, 01:38 PM
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Re: Spark Plug Change for an 06 with 5.7 Hemi

It was a simple. The only one that was difficult was the last one on the right. You can handle it though.
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Old 12-21-2010, 05:35 PM
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Re: Spark Plug Change for an 06 with 5.7 Hemi

Great ty for the info... will let everyone know how it works out... my dealer in NJ charges 109 per hour with a quote of 349 to perform this work. Thats just too much so I wanted to do it myself
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Old 12-21-2010, 07:43 PM
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Re: Spark Plug Change for an 06 with 5.7 Hemi

Just be sure you have a good swivel socket that holds the plug real well. Mine didn't and it tood about an extra 30-45 minutes. Make sure you do it with the engine cold and properly torque the new ones. There is a lot of controversy about anti-seize. Personally I don't use it, unless I am removing and reinstalling the same plugs. Check the installation tips here:

http://dodgeram.info/Engine-Gas/Spar...ook.html#lines
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Old 12-21-2010, 08:42 PM
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Re: Spark Plug Change for an 06 with 5.7 Hemi

I did it myself a couple of months ago on my Overland, and talk about knuckle busting! I have fairly large hands though, which might of contributed to the difficulty... LOL But man was I happy that I saved all that money!
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Old 12-23-2010, 08:36 PM
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Re: Spark Plug Change for an 06 with 5.7 Hemi

The plug change took me about 5 hrs to all 16 plugs not sure if I was very slow or if it took others this long as well. I used the following tools ...

5/8 ratchet
2 x 3" wobble extensions
5/8 swivel socket
5/8 Sparkplug socket - deep socket thin wall with rubber plug holder
1 ft of vacuum tubing (A MUST!!!!!)

NOTE: I had 1ft of Rubber vacuum tube lying around and it came in very very handy when used to guide the new sparkplugs down into the cylinder. I stuck the plug on the end of the hose, lowered the plug down to the cylinder, and then spun the rubber hose to begin the threading of the plug without risk of cross threading! Basically The rubber hose wont allow enough torque to be imparted to plug to fowl the treads

Followup question for anybody that knows how to read plugs
that came out of my 2006 hemi with 70,000 miles on it.

One of my plugs (last plug closest to the firewall on the passenger) didn't seem to look too good. When I pulled it out of the cylinder hole it had blackened baked-on goopy motor oil! This was notable because all other plugs came out looking very clean.THe oil seemed to be at the base of the plug and did not seem to extend down all the threads into the cylinder. That said the, the business end of the plug look significantly blacker than all the other plugs (All other plugs had identical grayish tan to white color).

If I post a picture of this plug can anybody tell me if I have big problems on my horizon?
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Old 12-23-2010, 10:48 PM
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Re: Spark Plug Change for an 06 with 5.7 Hemi

As stated in the hyperlink listed above... is this what your plug looks like? If so, read below. If not, check the link out and there are other pictures of plugs.

Symptoms of oil fouling include black oily coating caused by poor oil control. This situation is more severe than what is seen with the ash-fouled spark plugs and usually represents advanced engine wear. When the oil enters the combustion chamber and covers the core nose of the spark plug, the spark no longer arcs across the gap. Rather it takes the easier path to ground by tracking down the oil on the core nose. This results in a complete cylinder misfire condition. Check for worn valve guides, valve stem seals and/or piston rings, In some engines, a defective PCV valve can contribute to this condition. Replacing the spark plug may help for a short time, but the new plug will soon foul.
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Old 05-07-2011, 07:36 AM
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Re: Spark Plug Change for an 06 with 5.7 Hemi

hey where did you buy those cover lights trebliw
can you send me a link please i cant find these anywhere
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Old 05-07-2011, 09:25 PM
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Re: Spark Plug Change for an 06 with 5.7 Hemi

Get the K-D tools spark plug socket set. 3 different extension lenths captive on a wobble connection. Socket have rubber and magnet. About $35. Makes changing a piece of cake.
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Old 05-07-2011, 09:47 PM
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Re: Spark Plug Change for an 06 with 5.7 Hemi

Quote:
Originally Posted by John View Post
Followup question for anybody that knows how to read plugs that came out of my 2006 hemi with 70,000 miles on it.

One of my plugs (last plug closest to the firewall on the passenger) didn't seem to look too good. When I pulled it out of the cylinder hole it had blackened baked-on goopy motor oil! This was notable because all other plugs came out looking very clean.THe oil seemed to be at the base of the plug and did not seem to extend down all the threads into the cylinder. That said the, the business end of the plug look significantly blacker than all the other plugs (All other plugs had identical grayish tan to white color).

If I post a picture of this plug can anybody tell me if I have big problems on my horizon?
So your saying the plug tip was a bit darker and where it threads into the head was gooped in oil residue?

If yes, then you have a leaking valve covergasket for that sparkplug hole. It is very common for the rubber gaskets to get misalligned when they are installed. I suggest removing the same sparkplug and see if it is doing the same thing again and if it is removing the valve cover and adjusting/replacing the rubber gasket for that sparkplug hole.

The most likely reason the tip was darker is that it may have been grounding out a bit and not producing the full spark needed to ignite the fuel mixture. This will cause a rich condition and blacken/foul the plug.

Easy fix but definately needs attention before it causes more issues.

Post a pic of the plug and I can tell you more.
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