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How to change spark plugs on Chrysler 300C 5.7

35K views 2 replies 3 participants last post by  The Sko  
#1 ·
I have a 2007 Chrysler 300 C with a Hemi 5.7 L engine and just changed the plugs for the first time. No big deal.

First you want to remove the coil housings with a 10 mm socket wrench

Then you want to squeeze and pull off the wire connector

Then pull on the coil with the attached plug insulators. These can be tough to pull off but that is how they come out.

Then use a 13 mm deep socket to extract the spark plugs.

If the socket comes off of the extension, you can retrieve it with a heavy duty cylindrical magnet.
 

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#2 ·
This write up shows that this is the easiest maintenance that you can do yourself. I can't believe anyone would go to a dealer for this!