Dodge Caravan 1993 4v Overheating?

Dodge Caravan 1993 v4 Overheating we got the thermostat replaced and coolant sensor replaced the coolant level is fine and i got the relays replaced but still did the same so i put the old ones back, still wondering what it might be, the oil level is fine and theres no gas or coolant in the oil, the oil light is on but it isnt low or too hgh, i have an idea that the oil isnt getting into the top part of the engine can anyone help me out in detail what it might be, but it runs and we use it but like after running it for 5-10 minutes it starts overheating and we have to pull over and let it cool. so if anyone knows what might be wrong please tell me, and ty