On my 2000 Mazda Tribute the A/C is relatively cold while idling or parked and running, but when you start down the road it is not cold atall. I charged the system and it is full. Someone told me that there was an orifice that is probably stopped up, I need help finding where the orifice is.

 

look at the connections on the a/c lines behind one of the connections you should find some little indentions.it will look like someone used a crimping tool and made the indentions.the orfice tube should be in that line,the indentions are there to keep the orfice from being suck into the system.as to tell you exactly where the orfice tube is located i don't know.