Originally Posted by DeadCellM60
Even further, how are your pressures reading at idle and under load? Are they within spec?
If all is good then my bet would be you tweaked the Oil Pressure Sending Unit while spinning off and on the Oil Filter and somehow damaged it internally (or pulled on the wiring) causing it to fault. After all they are right on top of each other... assuming of course you have the 4.0.
it makes sense now, my dad had a good deal on a company to change the oil, and it was right after that, that it started going crazy on me. thanks for the help.