Hello all. After replacing my water pump (bearing failed) I started seeing a small leak around the sensor that bolts on to the pump. I reused the same sensor that was there before. I thought I made a mistake not replacing the washer. so I went ahead and bought a new sensor (figured old one is now old) that comes with a washer. Put that on and it's still leaking.. what could it be? I didn't really use a Torque Wrench so I kinda hand torqued it. thanks in advance for any tips.