Tag: flush ac system

Toyota interior

A/C system restriction.

A/C system restriction. Symptoms of a restricted orifice tube.

A restricted orifice tube would cause a lower than normal low-side pressure. A restricted orifice tube may cause frosting of the tube. The restriction will cause a greater than normal pressure drop that can lead to the refrigerant vaporizing at that point .Vaporization of the refrigerant will produce cold enough temperatures to cause frosting.

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