I own a 1995 Toyota Celica. A plastic tube next to the aluminum tube eventually rubbed a hole. Can this aluminum tube be repaired, or do I have to replace the entire thing?
I doubt it. If it's an AC line it has to be replaced. Aluminum is difficult to weld,
doubt you can patch it, if it's high pressure it's not worth it in the long run. Days are really hot and cars build a lot of pressure in the lines. Best bet, get it replaced with one that comes from a wrecked car, it's the cheapest way to go. Never buy the part from a dealer.