Idler arm removal

Go to an Auto parts chain that rents tools and rent a tie rod end removal tool. they come in a couple sizes. Auto Zone for one, rents tools for free. You just have to put a deposit down equal to the tool value and you get it back when you return it. Or...don't return it and it's yours. Have done that a few times. Can't beat free.

Use the tool to apply a separating force and if it doesn't quite do it, whack the side of the rod end with a hammer and it will usually pop right off. I don't like using pickle forks because it will gouge the castings and typically ruins the seal. I have a pickle fork that fits into my air hammer and it is BRUTAL, always works but I only use it as a last resort.