Misfire on #5 cylinder?

This leaves low compression or a bad fuel injector. When you remove the spark plug is it white in color? if so, the fuel injector is bad, if it is dark let's do a compression test.

https://www.2carpros.com/articles/how-to-test-engine-compression

Here is a guide as well that give more information on engine misfires:

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Please go over these guides and get back to us.

where are the fuel injectors located on this vehicle and how to test them?

So the fuel injectors are inside the intake manifold. It is called a "spider injector" which they had problems, with, I would do the compression test first to make sure the engine is okay. And if so, replace the injector, does the #5 cylinder make a ticking noise while at idle? If so, you may have a flat camshaft.

Here is a guide on how to test the fuel injectors:

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

Check out the images (below).