Mam4.6 you were right it is that hose you were talking about. How fun. Anything else to replace while I've got this torn apart? Also thanks for all the support and input from everyone!

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2001 4.4i E53 172k 01/01 Mfg

Mods: Led interior lights, rear footwell lights, black powder coated rims, carbon fiber wrapped interior trim, matte black ecs kidney grilles, arnott air springs(rear), rear console-quad usb chargers, K&N air filter, akebono ceramic brake pads & zimmerman rotors, black painted calipers, 5% rear window tint over factory tint, 50% front window tint, rear airbags activated, 4:3 nav head unit auxilary input, diy trans rebuild at 160k, spyder led tailights, hella horns