Ok so I started getting a few drips of coolant under the car. Most were due to needing to replace Coolant tank - Done. What I noticed after the job was done is that there was still a very slight leak at the bottom of the circle area, where the plate meets the housing. It is only at the bottom seem. It is completely dry above this area and I see no leakage from the Oil cooler. What is happening behind that plate that there is coolant there?