I recently purchased a 1994 honda civic ex with manual trans. and 112,000 miles. The car is absolutely in mint condition inside and out. My problem is I would notice a slight hesitation occasionally in the motor while I was driving. When I lifted the hood to inspect I noticed it was the a/c compressor cycling on and off. My father in law checked the pressure and it measured as if it was at the appropriate range. He mentioned if the refrigerant is low the sensor disactivates the compressor. He added r134a refrigerant and pressure seemed to remain the same after going through almost the full bottle. After accelerating the engine to about 2500 rpm the compressor purged a blast of refrigerant through the relief valve. We checked the pressure and it was still in the same place(on the low pressure side). It still is cycling on and off. Could it be that it is overfilled and the compressor in cycling not because it is low on gas but because it is overheating or something? I noticed the problem alleviated a bit when the compressure purges the refrigerant. It also seems to not be cooling as it should. Any help would be greatly appreciated.
- posted
19 years ago