I found a leak under my rig today. It is from a tube next to catalytic converter, appears to be coolant. Also, the coolant levels are wicked low. How much would a line replacement cost?

 

If it is the metal lines running to you rear heat, remove the metal lines and/or just replace them with rubber. For a temporary fix, if you do not currently need rear heat - get under your hood and just bypass the rear heat. This should be apparent once you look at it but you are just rerouting the rubber hose connections so nothing goes to the lines running to the rear heat...

 

rear heater. those tubes do corrode. it happens.

bypass them or dealer fix 250 bux

 

or buy some brake lines and bend them yourself

worked for me

 

Oh hell, that isn't bad at all then! Considering that the snow is finally melted up here, I would consider making that a project for the weekend. Much better that spending 250 bucks!