There was coolant leaking on the driveway one night and coolant res. Was low. Looked underneath and saw a trail of coolant running down the oil pan. we pressure tested the cooling system and found coolant coming out of this pipe (attached pics) so we’re thinking it’s the o ring that has gone bad. But we’re having trouble getting the line out, anyone know something? Should we just yank it out or is there something holding it in place? Thanks!