A/C Lines disconnected overnight - Do I really need to Vacuum?

66fyssh said

Hey guys, I replaced the heater core in my 2008 Tundra and had the A/C lines disconnected overnight while the truck was parked in my garage this past winter.

It's getting hot in Georgia now and I'd like to recharge but I don't have a compressor. Will it hurt not to vacuum the system? Thanks!

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Some people believe that if the receive dryer has been exposed to air that it would be too saturated to vacuum all the air/moisture from it. I personally never had an issue with not replacing one but always advised on possible trouble down the road. If it was car, evacuate and charge. Make sure you add oil (lube the components) and dye (see any future leaks) to it.