How do you remove spark plug pt cruiser?

You must remove the intake manifold, very simple job.

I believe there are 7 bolts in front of intake that face up, also there are 2 13mm bolts under the throtle body, 1 in the back and 1 just under right side of it.

Note make sure you disconnect battery because you might have to disconnect 1 or 2 sensors. If you have a short bungy cord connect 1 end to the hood and the other through the bolt hole on the intake, this will hold the intake up for you.