Using 5W-30 oil in summer, my Catera's low oil pressure warning and light will come on when the engine is hot. But with 10W-40 oil this condition will not occur. Oil pressure gauge may indicate low pressure, but not enough to trigger the warning or the light.
Then stop the engine and have it inspected by a professional.
Page 3-61 of your owner manual. Oil Pressure Low - Stop Engine is on your Driver Information Center ( DIC). Also a Oil warning light will come on with multiple chimes.
Low oil pressure on a Cadillac Deville is an indicator low motor oil, a failing oil pump, or clogged passages. Low pressure can lead to excessive wear due to poor oil flow.
Do not run the engine until you have checked oil level, sounds like you are very low on oil.
low pressure sensor is located on larger line coming out from fire wall above right side tire and to the rear a little. should be facing towards engine.
Low oil pressure = Oil pressure has dropped, STOP Check engine = Problem with the emission's system. Temperture = Engine overheating, STOP Maintence required = Some sort of maintence is due, normally Oil/Filter change.
Low oil pressure or a faulty sensor. First thing to do is to replace the oil filter with an AC/Delco filter. This is an excellent filter designed for your Cadillac. If that does not solve the problem, replace the oil pressure sending unit. If that does not do it, then an oil pressure test is in order, to determine if the oil pump is faulty. try a heavier grade of oil it worked for me
Check oil pressure with a manual gauge. Could just be a bad oil sending unit or low oil presssure due to internal engine wear
Look it the car's dashboard. A light will illuminate if the pressure is too low. If this happens STOP immediately, if you continue to run the engine it could seize.
the promblem is the oil pump.
It means you have low oil pressure. Low oil pressure means you will destroy the engine if you keep running it with low pressure.
you have low tire pressure in one or more of your tires