S stevene1 Member Feb 3, 2011 #1 I start my truck (Merc Mountaineer) on cold days and the oil pressure gauge doesn't come up for a few minutes. There is oil in the pan. After a few minutes the gauge needle comes up and everything is fine. What's causing this?
I start my truck (Merc Mountaineer) on cold days and the oil pressure gauge doesn't come up for a few minutes. There is oil in the pan. After a few minutes the gauge needle comes up and everything is fine. What's causing this?