I have a 2011 Honda Civic LX with about 70k miles on it. As of a few weeks ago the AC really started having cooling problems; however, this all seemed to happen gradually. It seems to get a bit colder if the engine is revved but at idle on max AC you can barely tell that it's on.
Things I know:
- I can see the compressor engaging with no hesitation and staying on.
- The blower fan seems to be normal, putting out the usual amount of air.
- The condenser fan turns on.
- If I touch the low pressure AC tubing it seems very cold.
- It doesn't seem to matter how long the AC is running it usually stays the same temperature unless the RPM increases.
Things I have tried:
- I have checked the pressure of the refrigerant on the low tubing and it seemed normal.
- I added a few psi of freon out of desperation with no change.
This does not seem normal for a four year old car. After some research I did see people having similar problems but none as specific as mine. I am not sure where else to start looking. Let me know if more info is needed. Any help would be greatly appreciated.
*Update July 2018
I ended up taking the car to a Honda dealer and $1200 later the AC worked again. They told me there was an issue with the compressor clutch so they ended up replacing both the clutch and compressor all together. I tried to get them to warranty the work at the time with no luck.
AFTER 2.5 YEARS IT BROKE AGAIN! It seem to go out in a similar way as it did last time. It would be cold for the first 5-10 mins of the drive then hot. This time the compressor clutch doesn't engage and condenser fan does not come on. After taking it to my mechanic and watching him diagnose it, we are leaning towards the the compressor being shot. When he put power directly to the clutch bypassing the AC relay (which was the first thing I replaced with no luck) you could see and hear the engine struggle as power was applied and eventually caused it to stall the car.
This might be a different issue then the previous issue where it seems instead of it being the compressor clutch it looks like the compressor itself has seized.
Now time to decide if I want to put a 3rd compressor in a car that's worth $3,500 on a good day. Really disappointed in Honda after all this.