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Re: Servicing 1234yf Systems
Posted to Technical Theory Forum on 2/1/2018 3 Replies

I just had an R1234 class last night ,the machines will not allow you to let a charge in if the car does not hold a vacuum. The machines he spoke of also had identifiers . If the gas coming out is contaminated the machine shuts off and will not allow you to ch... Login to read more.

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