Bump / quick update:
2 years later, Oil light on dash, on my 2000 Taurus, starts to come on solid.
Flickers / goes on and off / stays solid ON, sometimes, at ALL RPM
. Finally stays on ALWAYS.
I am somewhat concerned - as I MIGHT have some major failure and possibly NO OIL PRESSURE Now.
But I continue to drive short distance back and forth to work, for a few days, till weekend comes.
Car is showing NO abnormal signs or noises and is working fine.
I do NOT believe I have NO OIL PRESSURE. That can not be. That idiot light on the dash is BS-ing me.
So weekend comes, and I finally have the time to pull the Oil Pressure sender, and install the Mechanical Gauge AGAIN.
Real TEST shows I DO have oil pressure. Real guage reads: 40 PSI
at idle cold.
So my sensor / Oil Pressure Sender - is likely BAD.
I order and receive new oil pressure sender from local Ford Dealership.
I have not installed it yet. I am still running with a 1/4 NPT pipe thread PLUG there for now .
the old sensor is out. (and I don't give a sht. - because I know I DO have oil pressure - for the moment.)
I will install the new sender when I have the chance.
I may like to test it first on the bench, with a good gauge, and see at exactly what pressure it gives the electrical "GROUND" connection /signal to illuminate the idiot light. Just for my info ...
So I guess my point is:
If you have a flickering or solid oil light - there may be a chance your oil pressure sender is "on it's way out" / or has failed / or will fail completely later.
Sort of a relief. There is a good chance my flickering oil light, when hot and idling in D Drive at the stop light - is / was due to an
old, worn, marginal, malfunctioning - oil pressure sender / sensor - on it's way out.
[ like I did previously - you gotta do an oil pressure test with a real guage - to know the truth. ]
[ At this point, I would seriously like to have a real good quality mechanical oil pressure gauge on my dash - all the times.
But not sure if I will make the effort to try and install one myself on this car at this point. ]
It would be "nice" to be able to view the ACTUAL ACCURATE pressure of oil in my engine at all times - on the dash.
I guess it is nice to dream.
Maybe on my next car. Buy car (or truck) with REAL Gauges. Not warning (aka "idiot") lights.