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Where is the orifice tube located?

This is a discussion on Where is the orifice tube located? within the General Help forums, part of the LSx Technical Help Section category; hello.ive been searching threads to see if i could find where the darn orifice tube is located,but i cant.ive charged ...

  1. #1
    Member Leeroyws6's Avatar
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    2000 trans am ws6 a4

    Where is the orifice tube located?

    hello.ive been searching threads to see if i could find where the darn orifice tube is located,but i cant.ive charged my system up after sealing a leaky line,and now im getting come crazy pressures.im pretty sure my compressor is shot.so im getting a new compressor,dryer and orifice tube,but im not sure where it is in the system.could someone chime in please?

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    Member DaddySS's Avatar
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    2000 Camaro SS Conv.

    Based on the description below it located in the hose that connects the drier to the evaprator core.

    The plastic expansion (orifice) tube (2) is made of a mesh-screen (1) and orifice (3). The expansion (orifice) tube is located in the evaporator inlet pipe at the orifice connection. The tube restricts the high pressure liquid refrigerant in the liquid line. This restriction meters the refrigerant flow to the evaporator as a low pressure liquid. The expansion tube and orifice have filter screens which protect from contamination on both the inlet and outlet sides of the tube. When the engine is OFF the refrigerant in the system flows from the high pressure side of the system to the low pressure side until the pressure is equalized. This may be detected as a hissing sound for 30-60 seconds and is a normal condition.

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    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    It should be in the smaller diameter line between the condenser and evaporator.

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    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    ok here, I found this picture online.

  5. #5
    Member Leeroyws6's Avatar
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    oh.ok.i know exactly where it is now.thanks for the no brainer illustration.sure makes it easier with picturesnow im gonna install my new accumulator,tube and compressor and see what she does.btw...my freon sticker is gone.how much refrigerant should i charge it with?

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