I changed out the front 4 sparkplugs today in my 2006 Pontiac Grand Prix Gxp and they were pretty bad. One of them actually had a crack n the ceramic

and all of them were pretty fouled. I was not able to get to the rear plugs!!! Does anyone know a way to change the rear plugs and what is the best way to get at them??

Thanks for your time group and have a great evening. I attached some picture of the old plugs.


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