I had a company vehicle in my shop with a front crank seal leaking pretty profusely...05 dodge caravan 2.4L. I disassembled the front of the motor and replaced what I thought was a leaking front seal. installed new seal and ran vehicle..no leak. got a call two days later..vehicle started leaking again. got vehicle back in and found it was pouring out like before...used fel pro seal. called local dealership and was told by them that they didn't have any idea what would cause it but would be happy to diagnose it further ....any ideas???