93 honda civic O-ring Leak?

They may not make the refrigerant your car used if it originally had R12 in it (check the refrigerant label under the hood for the capacity and type of refrigerant) However, o-rings are almost always available. It might require taking the offending o-ring out of the car and matching it with a new one. I have an assortment box of o-rings at my shop that will cover almost every car out there.

If the system is 134A and has not been service before, this would be the time to really give it a once over so that it will work trouble free for the next 15 years. When the system is opened to replace the o-ring, the receiver-drier should also be replaced. This is a moisture filter in the system. If it is relatively saturated, a new one may gain you another 5 degrees of coldness once the system is charged and working. This would also be a good time to replace as many if not all the o-rings in the system as you can because if another one leaks, you are in the same boat. If all the fittings are readily accessible, you might be able to get a technician to change all the o-rings for maybe another hour or two's labor plus the o-rings. The last thing to think about before the system is charged is to replace the shrader valves cores on the service fittings so they wont leak in the future also.

The last step in the process is called an "evacuation and recharge." This is where a machine is hooked up to the car and suction is put on the system for about 45 minutes, then the system is finally recharged.

If your system has the older R12, you will have to convert it to 134A to be able to get it working again since R12 is out of production. The conversion, known as a retrofit, entails replacing all the o-rings with 134A compatible o-rings, replacing the receiver-drier, removing the compressor from the car to remove and replace all of the oil in it, and finally flushing all the remaining parts to remove dirt, debris, and any remaining oil. This incorporates a lot of work that is covered when repairing a 134A equipped car, and I normally charge an additional 2-3 hours labor to do the additional work.

You are probably looking at a $400-$600 job for 134A or $550-$750 for R12 retrofitted to 134A. If you chose to just through an oring in it and charge it, probably $200 or so.

try some r-134 with stop leak in it, if that doesnt stop it, auto zone can order you the 0-ring.