My truck has recently started having the factory oil gauge drop to 0 oil pressure while idling. It doesn't do it every time, but from time to time while sitting at stop lights or warming up the engine the "check gauges" light will come on and the oil pressure will be reading 0. The engine isn't making any unusual noises or anything. Curious if anyone has had the same or similar issues, and if so what was the problem. I'd like to get it fixed more so that it annoys me than anything, being that I don't think the engine is actually losing oil pressure.