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**truckster** · 08-14-2021, 04:40 PM

There should only be two fittings. You don't need to remove the old fittings, or even the Schrader valves (at least with the adapters I've seen). Just make sure the old fittings are clean and install the new ones over them.

08-14-2021, 04:40 PM	#2
truckster Senior Member Join Date: Jan 2001 Location: Orem, Utah Posts: 8,030	Re: R134a fitting installation There should only be two fittings. You don't need to remove the old fittings, or even the Schrader valves (at least with the adapters I've seen). Just make sure the old fittings are clean and install the new ones over them. __________________ I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson