Hello everyone, I'm new to the group. I have a problem with the leaking ventilation differential I drained I put an additive and I bought a new part, an acdelco # 19132947 and I installed it with a 14 inch pipe but the problem is that it is still leaking. I went to a garage and he told me it would always leak because the differential is worn. However, my 2008 solstice is only 27,960 miles. Have some of you had the same problem and can help me solve it because I don't know how to fix mine.