I have a 13 Ram 1500 with the 4.7 eng. I just did my first oil change. When I turned the switch on to start it I noticed I didn't have a oil light on. When you start the engine and turn it off the oil light doesn't come on. I took the wire off the oil pressure sender and the light came on. I put a new sender on it but still the same thing. It will cycle through the high temp and throttle body light but no oil light. All three lights are in the same position on the dash, it just cycles through them. What's up with the oil light ?