Auto Air Conditioning & Heater Repair: orifice tube, grand marquis, engine compartment

Question
I have a 1984 grand marquis [full size] and i was wondering if you know were i
can locate the orifice tube im not sure if its under the hood or under the dash                
thank you   steve

Answer
Hi Steve

Look in the engine compartment.  You will see the evaporator case  (black case by the firewall that has a metal bottle attached to it)
You will see a thin hose attached at the bottom of evap.  Remove the hose and you will find if inside that pipe.