I checked the oil and it was clean and fine, no evidence of water. Could trash from the flush have clogged the oil pumped and should I check this first and replace it. There is a possibility that the oil pick-up or the oil pump may have been clogged. We would suggest removing the oil pan and cleaning out the pan and oil pick-up. If I change the oil and filter together, I loose the oil prime and engine does not pump oil.
Lifters start to make noise.
Later I will start engine and the oil light will stay on for 2-3 minutes before going out. The engine on this type of start will not make noise, which leads me to believe that oil is getting to valves etc. If I shut down early in this type of start I can take out oil sending unit and start and run car without loosing oil through the open hole. I will have lost a pint. Then I put back the sender, on the next start the oil light goes out, and all is well.