Low oil pressure light comes on when cold but goes Away once warmed up

10

Asked by Oct 25, 2016 at 11:48 AM about the 2002 Cadillac Escalade AWD

Question type: Maintenance & Repair

On cold days the escalade will have lifter tick then goes away so once I go
inside I come back out the car will have low oil pressure light on and makin
lifter noise then once I give it gas it goes away. Or it will go away once engine
is warmed up I just hope it's nothing serious any suggestions? Just rather fix
it before it's to late and it makes me nervous hearin the tick

4 Answers

10

When it's cold the oil will have a thicker viscosity making it less able to move around the engine. On a multi-grade viscosity oil such as 10W-30, the first number '10W' is the viscosity of the oil at cold temperature and the second number is the viscosity at 100 °C (212 °F). If you live in a colder climate or during the winter it might be better to switch to an oil which has a lower viscosity at lower temps. If you're running 10W-30, try a 0W-30. Also make sure you are full of oil when the engine is hot - sometimes low oil pressure light can mean not enough oil, or the oil pump is going out.

10

I live in New York and have been runnin 5w30 and it requires 10w30 so I just did an oil change last week with Mobil one full synthetic oil. It only does it on cold mornings if it is warm it will do the lifter tick for 20 secs then go away now that it's getting colder it does it little longer then goes away so I let it warm up then I come out and it's pullin the low oil pressure and th lifter tick so I give it gas and it goes away again.

69,785

Maybe your oil pump is worn. How many miles on the engine? Do you change the filter with your oil changes?

10

It has 160k originally from Florida just been up in New York for not even a year and I run Mobil one filter with the oil was running fram but heard those weren't good so changed it and still same problem. If I get lot of answers sayin it is oil pump I'm going to get it replaced with a new oil pump and the oil pump screan it's going to be costly so that's last option if nothing else will work.

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