2003 Jeep Grand Cherokee 4L 6 cyl at idle and running has low oil pressure
I live in Colorado so I have been starting my jeep from cold temps every morning for the past month. I have been allowing 5 to 10 mins for the car to warm up & I check the oil pressure & water temp gauges to be at good levels before driving. I have noticed an oil smell when I get into the car. Yesterday the oil pressure would not go past the L, even after sufficient "warm up" time. I have checked the oil level & it is fine.
Check your oil pressure sending unit, those tend to leak and send false readings to the gauges. It's a cheap part to replace (like $40). You could check oil pressure with a mechanical gauge to the pressure sensor port to assess whether you do indeed have an oil pressure problem.
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