Car started idling and running just a little rough. I already had new plugs for it but hadn't put them in because I was really scared of the rear plugs being seized in the head.
So I soaked the plugs in PB blaster for 24 hrs before. I started on the plugs closest to the trunk. They seemed to be a little stuck, basically I tried loosening the plugs and had to put some effort into it and all 3 popped at first and then loosened up. No problems. The farthest plugs, closest to the firewall, were strange to me. I put the socket on and turned loosened the #6 plug. It felt like it was barely tightened. Turns out, it was barely tightened. In fact, all 3 were hand tight. Not even any effort to unscrew them. If I could get my hand down there I prolly could have loosened them by hand.
Crazy! But I got them changed and it's running smoother and a little more UMMF! when I get on it.
The old plugs were worn on the diode but were running a nice light brown color. Motor seems to be running well at 96k miles.