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.
Low oil pressure in a 2001 Cadillac DeVille can be caused by several factors, including low oil levels, oil pump failure, or wear and tear on engine components such as bearings and seals. A clogged oil filter or using the wrong viscosity oil can also contribute to inadequate oil pressure. Additionally, a malfunctioning oil pressure sensor may give false readings, indicating low pressure when it’s actually sufficient. Regular maintenance and timely oil changes are essential to prevent these issues.
the promblem is the oil pump.
The check engine oil pressure light in a 1988 Cadillac Brougham can illuminate due to several factors, including low oil pressure caused by insufficient oil levels, a failing oil pump, or oil leaks. Additionally, a malfunctioning oil pressure sending unit or faulty wiring can trigger the light. It's essential to address the issue promptly to prevent engine damage. Checking the oil level and condition, along with diagnosing the oil pressure system, is advisable.