Welcome to 2CarPros.
Take a look at the attached picture. If that is the set up you have, there is a slide adjustment on the lower right of the pump that moves when removed. Also, there are two mounting bolts behind the pulley that may or may not have to be loosened for the pump to actually move.
Take a look at pic one to confirm I have the right routing diagram. There are a few for this vehicle. If it is correct, loosen the slide bolt and the two mounting bolts behind the pulley. I have attached a picture of the pump so you can see where the two mount bolts are located. In the picture you can see the threaded holes.
If you look through the following link, it shows the different designs. If you see the one that is like your vehicle, let me know and then I know what you are dealing with.
https://www.2carpros.com/diagrams/isuzu/rodeo/1994
Let me know if you have questions or if this helps.
Joe
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Friday, June 19th, 2020 AT 12:57 PM
(Merged)