After replacing my A/C compressor it seems that my evaporator core may be leaking. After using the A/C the last time I noticed that the condensation that dripped on the floor of my garage was oily and had a green tint, probably from the leak detect PAG oil. There's also residue around the drain hole along the rear bottom edge of the right front fender. After some research and review of the Pontiac service manual, I'm planning to remove the inner fender and replace the evaporator core with a unit from Old Air. Just wondering if anyone has experience with this and has any advice to offer. Classic Auto Air offers a service to restore evaporator cores and the housing, but they require a core that doesn't leak.