2001 dakota i changed my oil pump and oil filter but still had low oil pressure so i tried thicker oil?

My wife's '97, 3.9 Dakota 4x4 had very low oil pressure at 130,000 miles, changed sending units and now have 40 plus pounds at 2000 RPM 25 pounds at idle with 145,000 miles using Pennzoil 10W-30 high mileage oil.





Check oil pressure using mechanical gauge before throwing money at engine.2001 dakota i changed my oil pump and oil filter but still had low oil pressure so i tried thicker oil?
on this one you may wind up replacing the main bearings in it,when they get bad they will cause a severe loss of oil pressure,if i replaced those id also do the rod bearings ,that should restore the oil pressure on it,if not you may have spun a cam bearing in it,good luck with finding it,2001 dakota i changed my oil pump and oil filter but still had low oil pressure so i tried thicker oil?
Have you given any thought to the possibility that your oil pressure gauge may be faulty? I've run into this before and it was a bad gauge. Try a known good one to eliminate the possibility. Good Luck
How low is low? It could be close to spec. What oil have you been using. How thick is the oil you're going to? But to answer the question the best i can, yes that will help.
check your manuals and see where the poppet ball for the oil pressure by-pass valve is located. it my be partially stuck open for some reason.