Oil Pressure
Asked by govetman Oct 16, 2014 at 04:34 PM about the Chevrolet Malibu
Question type: Maintenance & Repair
I seem to be losing oil pressure. When it is first started (cold) it will have about 25 psi at idle and 45-50 psi at 60mph. However, once it gets warm the oil pressure drops to 0-5 at idle and about 25 psi at 60 mph. I first thought oil pump but since it is seems relatively good when cold I don't think that is it. Anybody have an idea?
4 Answers
I would change the oil sending unit,may be reading wrong.
Sending unit is fine. Any other idesa?
if the sending unit is ok , and you have no rattels to the engine,the oil pump is the most likely place to look
I have a 2017 Chevrolet Malibu. My Oil psi at start goes from 12-15. The longer it sits (warming up during the cold) it dropped down to 9. There is knocking in the engine that idles up, then goes down. What could be the issue???