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There is one valve that is used to add refrigrant. But you had better not add Freon. Freon is R12 and your vehicle's A/C system does not have Freon (R12) as a refrigrant. More than likely it uses R134a.

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โˆ™ 2007-05-03 01:30:00
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Q: How many valves are there to put freon in a 2000 ford expedition?
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