My father-in-law has a 91 626 LX. Well the A/C messed up(blows but does not get cold) so I tried re-charging it. The guage said that the A/C was at about 70 PSI, which I know is way too much. I drained it all out and re-filled it. Still didn't get cool... asked a mechanic and they said that he Dryer Filter was the problem. So I got one from Advance and now I can't find where the stock dryer is... Thats all I need to know is the location, the install is not a problem. Any help is VERY much appreciated. Thanks.

 

I don't know if you checked to see what your high side reading is, but with a low side reading like that I would think the expansion valve has malfunctioned. You would most likely find a too low high side. I have never seen the receiver drier cause the A/C not too cool on anything I've ever worked on. To find the drier, just follow the high side lines, usually around the condenser or behind the drivers headlamp area.

 

it was acutally behind the pass side headlight.... but I replaced and thats still not the problem... i dunno. he is takin it to the mazda dealership tomorrow. i'll let them worry about it. But thanks for the help and input.