2000 GT, Trouble removing spark plugs?

Are they all like this? I have seen where people put plugs in without anti-seize, and they litteraly bonded into the head. There are different types of plugs and coatings on plugs. A nickel plated plug is less likely to corrode than a regular steel plug. When steel and aluminum are put together, there is a very high likelyhood of corrosion. That is why anti-seize is used. It acts as a barrier. I had something similar with aluminum lug nuts on steel studs. When I didnt remove the rears for almost 3 years, several of the lugs were welded to the studs. I didnt break any of the studs, but I did leave quite a bit of the threads on the studs (I had to clean it off with acid....oh the fun). This is called a galvanic reaction, or galvanic corrosion.

There are some ways to get things seperated....they they are not especially friendly with aluminum. I would sugguest going down to a parts store and getting some penetrating oil. You can make some "home brew" that works the best, or get just the stuff off the shelf. Kano Kroil is probably the best off the shelf, followed by liquid wrench as a close second. The "home brew" is the best, and it is 50% ATF (automatic transmission fluid) and 50% acetone.

Throw some down in around the sparkplug, let it work in, then see if it will help. If the galvanic reaction is bad enough (I pray you dont spray wash your engine a lot), then none of this is going to help. But anything is worth a shot.

a little bit of the penetrating shouldnt hurt much and will burn throgh the engine pretty quick after you get it started. Like I said, try them all, hopefully it is just one. If you have a lot of dirt and crap down there, blow it out with an air compressor, or get a can of the computer cleaning compressed air. That should get a lot of the junk/dirt out of the hole, then spray the oil and try to get the plugs out.

I dont know if you got a tub of anti-seize....but get some. It will save you from stuff like this in the future.

Honestly, they type of plugs dont change much. They wont give you power, they wont give you more MPGs...... The only real difference between types of plugs is the interval between changes.

I read this somehwere a while back. Copper plugs - 14,000 miles, single platnums - 30,000 miles, double planiums - 65,000 miles, iridium - 100,000 miles.

Glad it worked out for you. I have seen plugs worse, but those have been in there a while. Do you use fuel additaves? Sometimes the stuff can cause some deposits on your plugs. Some octane boosters are known to make plugs a funny burnt red color....others leave an ashy white residue. They look fine really....other than the rust and being pretty old.

The reason the new models have more threads is because they changed the heads in 04. They had a problem with spark plugs blowing out because there was only like 4 or 5 threads in the head. The 04s had 8 thread heads. That is why the new ones have more.