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Old 06-14-2008, 01:01 AM
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Hey guys i broke this ac line when doin H/C and i got a new line and just wondering how to fill it back up the auto parts store said to buy the referent stuff and this oil that is only four bucks but wondering if i need the oil cuz shouldnt it still be in there or would it have came out as well
Old 06-14-2008, 09:20 AM
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Too much oil and it won't cool as well. If you just put refrigerant in without using a vacuum pump it won't cool as well.
So there are two things taking away from your AC systems performance.

You shouldn't need oil, just pull a vacuum and put the proper refrigerant charge in it.
Old 06-14-2008, 12:16 PM
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what yoy mean pull a vacuum like turn it on when i plug the refrigerant in
Old 06-14-2008, 01:20 PM
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Originally Posted by ls1slow
what yoy mean pull a vacuum like turn it on when i plug the refrigerant in
You need a manifold gauge set and a vacuum pump. Don't waste your money putting refrigerant in an empty system without using a vacuum pump on it first. I mean an electric motor powered pump, not a hand held pump.
Rated at 5 cfm or higher.
Old 06-15-2008, 08:52 PM
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You do need to add oil after vacuuming. A car loses about 2 oz. of oil during recovery and vacuuming.
Old 06-15-2008, 10:49 PM
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Originally Posted by 2001WS6Vert
You do need to add oil after vacuuming. A car loses about 2 oz. of oil during recovery and vacuuming.
A vacuum pump will not remove oil from the system, only vapor
Old 06-15-2008, 11:04 PM
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Originally Posted by NoGamesLS1
A vacuum pump will not remove oil from the system, only vapor
Very true. People see oil buildup around the exhaust port of the pump, it's the vacuum pump oil.

Originally Posted by 2001WS6Vert
A car loses about 2 oz. of oil during recovery and vacuuming.
Vacuuming? It's called evacuation to avoid confusion.
It's looses ABOUT 2 oz. So what do you put ABOUT 2 oz back in?

In this peticular post the guy broke the vacuum line, there was no recovery, no oil is lost during evacuation, so Don't add oil.




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