Ok so after reading around on here I came to the conclusion that my oil sending unit sensor was bad. I bought a new one but I cannot for the life of me figure out where the old one is so I can replace it. I've searched on here and found info on where it is for the 4.0 and 3.0 but not the 2.5. Please help. Oh and a picture is worth a thousand words lol.

 

This is taken of a 2.3 but its more then likely the same. Source Post on TRS

"Ill put it into detail of what is what. The red circle is where we put a manual temp gauge. The green is the factory oil pressure gauge. The blue is the manual temp gauge."

 

that is where it is also on the 2.5, just replaced mine last weekend. Had to do it with the front of truck on ramps from under it. Took be forever to find it. used a 13/16 sparkplug socket without the rubber sleeve in it.