The message said Low refrigerant . I cleaned the orifice tube and installed 2 cans of 134a. I have 100lbs on the low side. I checked the fuse and the relay. The message still says low refrigerant. The compressor will not start
Cars & Trucks - Cadillac - Eldorado
Answers & Comments
WELL YOU NEED HAVE SYSTEM DISCHARGED AT A GARAGE OR DEALERSHIP.YOU NEED TO HAVE AC SYSTEM PUMP DOWN WHICH IS EVACUATE WITH A VACUUM PUMP TO REMOVE ALL THE MOISTURE IN SYSTEM TO KEEP FROM FREEZING BLOCKING OFF OR RESTRICTING REFRIGERANT FLOW CAUSING THE LOW PRESSURE SIDE READ HIGH.YOUR AC DRIER OR ACCUMULATOR FULL OF MOISTURE.
100 PSI ON THE LOW PRESSURE NOT GOOD YOU NEED AT LEAST 38 PSI ON LOW SIDE ABOUT 220 PSI ON THE HIGH SIDE.YOU HAVE TOO MUCH REFRIGERANT IN THE AC SYSTEM. YOU NEED TO HAVE AC SYSTEM DISCHARGED AT GARAGE.REPLACE THE AC REFRIGERANT LOW TEMPERATURE SENSOR. HAVE AC SYSTEM PUMP DOWN TO REMOVE MOISTURE AND CHECK FOR LEAKS.THE AC LOW TEMPERATURE SENSOR COULD BE BAD.
This is a bad pressure sensor, if you know that you have enough 134a in the vehicle and know it is holding pressure. Also if you have too much refrigerant in the vehicle it will not operate properly. you should also make sure that the A/C compressor is not seized and that the A/C compressor clutch is operating properly. In regards to the orifice tube these can not be cleaned it is best to throw out the old one and replace it with a new one, as these are only about $3 to replace and are often in stock.
There is only one pressure switch and it is the sensor at the high side eithr before or after the drier bottle
no rating? ouch that hurts..