1997 Buick Lesabre ac don`t get cold?

[John A]

locate the area between the outlet of the condenser and the inlet of the evaporator that suddenly makes the change from hot to cold. You should then see small dimples placed in the line that keep the orifice tube from moving. Most of the orifice tubes in use today measure approximately three inches in length and consist of a small brass tube, surrounded by plastic, and covered with a filter screen at each end. It is not uncommon for these tubes to become clogged with small debris.

 

[custom300]

have a 97 buick lesabre ac don`t get very cold check freon put some in till little over charge still don`t get cold . think they are a screan that gets plug where is this located . I have vacuum pump and all the gauges needed to pull vacuum . what all do I need to change thanks

 

[victimof]

could be orifice tube and very possible compressor is failing