If the oil pressure drops too low, the oil light is supposed to come on steady. However mine flashes. Just started this today after washing my car, I don't remember it doing it when I backed it out of the garage, and it definitely was not doing it last night.

The Helm's says the oil pressure light will flash if the pressure drops too low for 0.5 seconds and then returns to normal. But I tried turning the engine off, and then starting it again and it's still flashing. Engine oil level is fine.

 

Maybe the oil pressure is surging up and down right at the threshold for the light to come on.

 

I doubt that, it's flashing on-off-on-off in an exactly constant pattern, pretty much just like the way the oil light flashes when you first start the car as it checks itself. However it just doesn't stop flashing after the car is started.

 

hook up a mechanical oil pressure gauge and check your oil pressure. if its within spec then your oil pressure switch is bad.

if your oil pressure is not within spec..........well then theres a serious proble....

 

Same problem right here man, go buy an mechanical oil pressure gauge

Its either:
1-Faulty Sensor (causes light to stay on not blink)
2-Bearing clearances

The light just comes on after driving for about 6 min for me and the pressure falls below 4.5psi, obviously 6 min gets you knowwhere, but I feel I was lucky, Canadian winter takes a little longer for the oil to heat up and become thinner,

So I went to the store and threw in 4 Quarts of SAE 50. Thick as **** oil, the car takes about 2 seconds to kick over, but because of the cold as hell weather and the oil being as thick as syrup I now get about 25 min of driving before the light will come on which is very rare I need to go that far.

For me this is just a fix until I drop in my built motor in March, Ill be fine.

But to be sure, throw in a oil pressure gauge, make sure you are getting very low oil pressure and either throw in some thick oil or think about replacing oil bearings

And youll most likely get people telling you its your oil pump, IT ISNT!!!

There mechanical, they either work or they dont work, nothing inbetween

Good luck

 

I am thinking it's not the switch or bearings or anything like that.

The reason is that the Integrated Control Module is what make the light blink, and only when it senses a momentary loss in oil pressure that returns to normal.

If it were a problem with the switch, the light should be on steady or not at all, neither of which is the case for me.

I'm hoping it's a faulty ICU. I performed all the input diagnostic checks on the oil pressure flasher circuit listed in the Helms, and all checked out. It says if they all check out, then the ICY must be faulty. A new one is about $120.

 

Just started after you washed your car... did you pressure wash your engine? Could have screwed up the sensor wire.