Ever had your lift pump stay on (even with key removed) and your engine not start, though cranks very well?
There was no battery in the RV for a week, just sat there. So all system were temporarily disconnected I guess.
Just put in two 1000CCA batteries. And just put in a new oil cooler...
NIB: AIRTEX # E3158 lift pump max 14 psi $35.00 USPS shipping included.
While this pump fits 6.2/6.5 N/A or turbo applications it actually runs higher psi than the newer AIRTEX E3309 8 psi.
I have used the higher psi E3158 lift pumps for decades w/o the failures attributed to the E3309 pumps.