2003 Cadillac help

[red_zr24x4]

Anyone ever changed a oil pressure switch on a Cadillac Deville with the Northstar?
Oil level is fine, but I keep getting a "low oil pressure, shut off engine" warning on the dash.
From what I'm reading the pumps very rarely go bad and its usually a pressure switch failure. Just wondering how much a PIITA it is to change.
Thanks!
Kenny

 

[SEIndSAM]

Anyone ever changed a oil pressure switch on a Cadillac Deville with the Northstar?
Oil level is fine, but I keep getting a "low oil pressure, shut off engine" warning on the dash.
From what I'm reading the pumps very rarely go bad and its usually a pressure switch failure. Just wondering how much a PIITA it is to change.
Thanks!
Kenny

Yep, been there, done that. Crazy as it sounds, change your oil filter.

 

[red_zr24x4]

Thanks for the tip.
Is this in addition to the pressure switch?

 

[SEIndSAM]

Just the filter. I had this happen to me on my 2004. The filter was partially collapsing and was causing just enough oil pressure fluctuation to trigger the sensor. After changing the filter, I never have received the warning since...

I can't take credit for this, my garage had seen it happen once before and suggested we try it. It worked.

 

[red_zr24x4]

Thanks!

 

[red_zr24x4]

So far so good Sam, Thanks!

 

[Bigtanker]

Have you tried uncoiled rice?

 

[HoughMade]

I hope that works. Back in my car dealing days (admittedly well prior to 2003), such things as sending units, filters....that's what we always tried right before a con rod ventilated a block.

 

[spirit390]

How many miles on the car? What brand oil and filter do you use? What is your oil change interval. Fram filters will cause this problem on northstars. Use a quality filter like a wix or Napa gold(i know I know they are the same filter as wix makes them for napa). As someone who is always working on other peoples used cars that they bought used I find myself fighting neglected oil systems. Please don't think I am implying you've neglected your oiling system. But if you bought the car used the previous owner may have. I do not like and will not use sea foam but a product I have used often successfully is Gunk motor flush. I like to do it for 3-4 oil changes on really dirty engines. Good Luck

 

[red_zr24x4]

Thanks spirit, I've thought about the sea foam but will keep the gunk stuff in mind.
It has about 134k on it, runs great, does use a little oil though.

 

[bocefus78]

Thanks spirit, I've thought about the sea foam but will keep the gunk stuff in mind.
It has about 134k on it, runs great, does use a little oil though.

Its a northstar....get used to it using and leaking oil. Glad the filter change worked for you!