02 Ranger 3.0l Oil Pressure Problem
My Ranger has approximately 68,000 miles on it and the oil pressure gauge was flickering (wildly sometimes) after driving it on the expressway for 30-40 minutes. Gauge now reads High pressure any time engine is running. With just key on, it reads low pressure. I have had the pressure switch replaced and it still does the same thing. Oil is changed every 3000-3500 miles. Check engine light has never come on although check gauges has a couple of times. All fuses are good and I have disconnected the neg. cable and still have this problem. Any help I can get will be greatly appreciated.