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5/8 spark plug socket a ratchet, extention then i think the coil packs need a 8mm socket. just take the bolt out of the coil pack un plug it then pull it out. use the spartkplug socket to take the old plugs out and replace bee sure to use antisieze on the plug so they can be changed agian.
a regluar socket doesn't have the littel rubber thin in it to hold the spark plug you can get them pretty much any where parts store walmart homedepot any where that sells tools.