Civic 93 A/C doenst cool in Idle. With 2000 RPM cool a little. The compressor clutch and system is ON! Im sure

. Refrigerant Pressures: LOW = 45 Psi, HIGH = a bit more than 200 psi in idle.


2. Pressures below that, the A/C doesnt cool at all.


3. Dryer filter new.


4. When the car is Idle no cooling.


5. When engine is at 2K RPM or above, cool a little.


6. With the car moving around 30 MPH or above, cool a little better.


7. All above if I turn my A/C on with the car in low temperature and NEXT I go to a hot, sunny place.


8. If I turn my a/c on after the car was parket in sun, no cooling for a long time.


9. THe compressor clutch is engaged. The system in ON. THe car is less powerful (means the A/C compressor is ON).


10. Idle RPM from 700 to 800.


11. I put 65 psi of refrigerant... started to cool a little better, but weak yet. With 65 psi I cant accel... THe compressor goes off.


12. With 65 psi I can feel the alumunium conector freezing and with water...


13. I turned the pressure back to 45 psi. If not, the compressor would go off every second.





Anyone can Help me?





Thanks!!!

Civic 93 A/C doenst cool in Idle. With 2000 RPM cool a little. The compressor clutch and system is ON! Im sure
For starters it sounds like you may have turned a minor issue into a much larger more expensive one. Screwing around with the amount of refrigerant in the system is not a great idea. It's probably full of air at this point.





The initial cause for lack of cooling was most likely due to a loose belt (causing the compressor not to work at capacity), air in the cooling system, or a worn out compressor. The increased idle/driving corresponding with a "bit" cooler air indicates one of the above conditions.





To correct the problem you need to inspect the belt on the compressor. If it's loose, tighten it. Then take the car to a shop and let them purge the entire cooling system (pushes all old refrigerant out and replaces with new refrigerant/sealant). This will run between $40 and $70 depending on how much refrigerant your system can hold.





The do-it yourself R134-A canisters purchased at auto parts store have caused waaaay more problems than they've solved. Just holding the can improperly can cause massive amounts of air to get into your cooling system. I probably purged and refilled 40-50 systems this summer because of those damn do-it yourself cans!





Hope this helps.