Auto Air Conditioning & Heater Repair: pressures, o rings, compresser

Question
i have a 94 f-150. a/c stopped blowing cold air. i evac the system and pulled down into a vac for about 25mins. opened up the system and replaced the orific tube and accumulator and all o-rings in that area.the tube did have some debris in it though. pulled the system down again for about a hour and had 29", left it alone and it held that vac for a hour. recharged sytem by the book. at a idle pressures are fine, about 30 low and 160 high blowing very cold air. rev it up and high side goes nuts, even cuts out the compresser and i did change the switch.don't know if there is a blokage or moisture in there. i did read on here something about the fan needs to be working well, i have a manual fan and it is old, might be bad. any help would be great tahnks

Answer
DON`T UNDERSTAND," HIGH PSI GOES NUTS". IF IT`S OVER 250PSI THE CONDENSER MAY NOT HAVE ENOUGH AIR FLOW. SHOOT WATER ON THE CONDENSER AND SEE WHAT HAPPENS FIRST.HOLD THE RPM TO 1500 AND MONITOR THE PSI ON BOTH SIDES..WRITE BACK W/ RESULTS...


GOOD LUCK