what does this mean?

[R.J.]

my 91 navajo was driving like it had a miss fire, the autoshop said no codes came up and that mybe we could try changing the spark plugs. so pulled a few out and the driver side closes to the fire wall didn't look to good to me. why is the bottum threads messed up?

and i don't know if you can see it, my camera wasn't liking taking these pictures, but the tope of the plug looks beat up too

 

[Willard]

i don't know what that means, but it doesn't look good....

 

[IZwack]

Actually the bottom of the thread doesnt look like its messed up -- looks more like anti-seize lubricant. A wire-wheel on a grinder or something should be able to get that off.

 

[shamaal]

I would agree with the senator, anti-seize was my first thought. It looks like the anti-seize that comes in those packets at the counter in the auto stores. If the plugs came out easy that might be why.

 

[R.J.]

the plug was pretty hard to get out, i meanit was in an easy place to get to, but turning it was hard

 

[Stic-o]

Just put new plugs in...What are they $2 bucks a piece

 

[CrAzEd412]

Had a firing issue on my 96 explorer. Codes came up cylinder 3 and 6 misfire. Cleared them, never came back. Changed the plugs and wires, fixed it no misfire.

 

[R.J.]

haha yeah of course im putting new plugs in, thts why i took them out in the first place. just thougth "hmm bottum of plug dameged. how did that happen, how do fix/stop it?"