Hey Guys! Long time reader..first time poster. I recently replaced my waterpump and thermostat on my x5 2001 4.4. I've noticed now a leak under the car and have traced it back to the water pump pipe (the small one) right behind the water pump. From reading this thread and others, it apprears to be the O-ring on the pipe, but we replaced it when I did the water pump.

Do you guys think it is simply loose or not fully inserted? Does this mean I have to take it all apart again or do you think I can push it in from the back side (I would guess using something thin). If I have to take it apart again, is it easier to go via the intake manifold or back through underneath (removing the water pump).

Appreciate any advice I can get on this. Thanks all!