I started changing my plugs and got to the 3rd one back on pass. side. There was heavy rust powder when i blew it out with air. I put the socket in to remove the plug and it just spins?? Its like the plug has been stripped or there is build up prevented the socket from seating??? Any ideas??

 

Any chance there is a helicoil in there? Mayby from a previous owner.

 

Most likely there is something down there causing the socket to not fully engage the plug. Rock, pebble, part of the coil/wire boot, something like that wedged between the plug and head. Look down in there with a mirror. Helicoil would come out with the plug, not just spin, or compression would have blown it out by now!

 

GOT IT OUT!! Must have been a 14 year old original plug. Apparently water has been getting down around the plugs on that side. The plug was so rusted that I ended up using a 15mm socket which fit nice and snug. I'll try and attach a photo tomorrow. I've never seen a plug so corroded.

 

Man, its gotta run better now..lol