Jack
Big problem. While changing the oil for our appt. in the morning, I looked into any causes of a low oil pressure situation I have been having. Hot pressure was 40psi warm at idle 20 maybe 18psi. These trucks normally have 65 cold 40 warm.
I dropped the oil from the pan and probed the pan with a piece of #6 wire and immediatley bump the pick up tube and it was off the pump. Needless to say I am very pissed. To drop the pan on these trucks you either pull the motor or drop the front diff. I am not setup in my garage to do either. So I need to talk to you about the tuning or lack off tuning. So Sorry
Jeff