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Topic: Oil pressure low at cold start - sensor issue? (Read 1187 times) previous topic - next topic

Re: Oil pressure low at cold start - sensor issue?

Reply #20 –
Quote from: Pamela & Mike –
Scott,

That is a polite way to put it.

Mike

Not what I said when i installed a new sensor to find it bad from stock and reinstall the old one that is still in place waiting to get replaced again. Waiting for the moons to align before I attempt again. Truly ignorant.
 Note to self, upon new installation before installation ground out sensor body and plug in to wire plug to test for correct zero oil pressure and actual temperature  indication. Connector is a PITA to install/remove when installed. Easy in your hand. Even before original sensor is removed/installed  :headwall:

Re: Oil pressure low at cold start - sensor issue?

Reply #21 –
Quote from: dsd –
Okay i guess ill step into the water, possibly oil slick. I never see 60 psi. Normal is 34 and idle around 17. I had put this in the happy place prior but now i guess ill re-address. So
What is the pressure seen by others? ISM 450
Scott

Same for us, Scott

Re: Oil pressure low at cold start - sensor issue?

Reply #22 –
Same with mine

Re: Oil pressure low at cold start - sensor issue?

Reply #23 –
So all of you guys only see ~35psi at idle during a cold start or after the engine is warmed up to operating temp?

Re: Oil pressure low at cold start - sensor issue?

Reply #24 –
When my engine starts up cold it goes up to 60 and drops to 35 when hot and
idles over 15 when hot.

Re: Oil pressure low at cold start - sensor issue?

Reply #25 –
I believe the ambient temperature is causing the difference between coaches.

Re: Oil pressure low at cold start - sensor issue?

Reply #26 –
Here's what it does.  Video starts about 15 seconds into a cold startup.  Has not been run in 2 days.  Dash gauge mimics what the VMSpc shows.

http://youtu.be/XKxLYdvjtX8

Re: Oil pressure low at cold start - sensor issue?

Reply #27 –
I don't have an answer as to why this is happening but, I know oil pressure doesn't jump instantly from 35 psi to 61 psi. with the rpm staying the same.

Re: Oil pressure low at cold start - sensor issue?

Reply #28 –
So it changes after there is a buzzing sound in the background. I'm suspecting that converter box is making the noise? Weird. It doesn't climb up, it just changes again weird

Re: Oil pressure low at cold start - sensor issue?

Reply #29 –
The buzz is the oil pressure analog gauge in the dash moving from 35-60psi.  Stepper motor I'd imagine, but that's what the dash gauges sound like when they move.