Quote:
Originally Posted by Sunset Bob
"...Engine does have some lifter noise at 0 oil pressure..."
|
...Then your oil pressure gauge is definitely accurate at zero.
It's still possible that your sender couldn't take the pressure of this season's cold at your first start-up. (Pressure-senders made in China are problematic—and today, many
are made in China).
In my engine, I'd suspect that a failed oil pressure relief poppet spring was letting the oil pressure drop; however, go back to when you last operated it:
1) What the last thing done mechanically to this engine before the problem surfaced?
2) Was the oil filter replaced?
Oil filters can have internal faults right out of the box: first change the sender, then do an oil filter change.
Both are quick and inexpensive diagnostics. Fill the filter with oil (or better, ATF) before installing it.