Noticed van starting to leak coolant when fully warmed up and system under pressure. Traced it to the water pump. Pump was easy to change but found out a trick to removing the pump due to clearance issues with removing pump. In order to gain sufficient clearance with vehicle frame, had to loosen (do not remove), the engine mount screws nearest the serpentine belt system (passenge side mount). Once loosened to just a few mount screw threads, engine is repositioned enough to gain clearance to remove pump and install pump. No other problems with install.