3175375
Senior Member
I’m in the middle of correcting a low oil pressure situation in my 65 Ranchero. The oil pressure drops upon warmup to a level that triggers the oil pressure switch (light). I think that the bypass valve inside the oil pump has lost its staying strength, moreso when hot.
I pulled the oil pump out and opened it up. No terrible marks inside it, but wear could be a contributing factor.
The truck runs great, but has been slinging some oil out of the dipstick tube. (This may be a pcv valve issue that I am working in parallel)
I’m asking if you all have ran into this in your experience…
New parts will be here by the end of the week and installed, so I will know then if I have found the smoking gun.
I pulled the oil pump out and opened it up. No terrible marks inside it, but wear could be a contributing factor.
The truck runs great, but has been slinging some oil out of the dipstick tube. (This may be a pcv valve issue that I am working in parallel)
I’m asking if you all have ran into this in your experience…
New parts will be here by the end of the week and installed, so I will know then if I have found the smoking gun.