bought the car with 80k miles in 2017. the A/C was not working when I got it. the clutch on the compressor was not engaging, but before deciding that was the problem, checked pressure in the system. there was none (aka there was a leak and all the refrigerant was gone). I Recharged the system and added UV dye to find the leak. When refrigerant was added, the compressor worked fine (so I knew it didn't need to be replaced.) It blew cold for a little while but quickly got hot again so you could tell there was a big leak. Used UVlight to look for leaks, did not see any anywhere in the engine compartment, so I realized the leak must be in the evaporator (which is quite the process to get at. You have to take out the glove box and the blower motor and a few other pieces (there are good youtube videos online). Sure enough there was a big puddle of fluorescent goo in there. SoI replaced the evaporator (as well as the attached expansion valve because you might as well do it while its all taken apart already), sealed everything back up, vacuumed moisture out of the system, and recharged with new freon. A/C works now. although if driving at high speeds for a long time on hot days, it doesn't work quite as good. but the parts were about 130$ plus about 50$ for refrigerant and PAG oil. You will also need a gauge and hose set and a vacuum pump. OR you could have it done professionally (probably a better choice but much more expensive- was quoted at 800$ because of all the labor involved in getting to the evaporator compartment)

under the hood everything is working fine. inside the car ac only blow cool air between 61-75 degree F( ac cycling), not cold air. I have been suffering headache,hard to breath, and fainting while driving with ac on, many times i almost fell , off balance while walking around after driving with ac on,the symptoms lasted few hours after driving. at first i thought my health was going down the hill. on July 30th, a TIF 5000 freon detector was used to check the blowing ac air with closed air circulation(no outside air permitted) inside the car, the detector picked up large quantity of freon(R134a) existence in the blowing cool air with loud beeping sound when the ac air circulation was at the lowest temperature around 61 degrees and no freon was detected in the ac air when air temp. was around 75 degrees. the only possible cause was there was a leak within the evaporation system, may be it is a defective expansion valve on the high side system or the evaporator coil itself leaks.

this freon leak could be very dangerous as the freon is poisonous and causes blurred vision, difficult in breathing and sudden heart attack seizure if inhaled substantially in a closed air environment. eventually car accidents may occur due to impaired drivers suddenly lost control of the vehicles.

anyone finds his car not blowing cold air while ac is running should immediately wind down the car windows while driving to avoid possible freon poisoning or stop using the ac and use the outside air circulation. your car might have a slow leak in the evaporation system on the high side because it leaks only when high pressure is engaged. you or your mechanic may be unaware of this insignificant ac air flaw.

i am angry and disappointed with Honda automobile quality now. i had a civic crx, civic lx sedan,accord lx before, they had no such issues.

automobiles ac system should last awhile, a least a few usage years without any repair. i live in Virginia, 3 months of summer, the only time car ac is used. my 2008 civic ac had only being used for 5 summers and a total 15 months usage.

my 1995 isuzu trooper ac had only one condenser replacement in 2012 due to exterior corrosion that is under the hood, harsh outside environment, evaporation system is still in good condition. i am still driving the car. my wife drives a 2005 toyota sienna lx awd, last year we only replaced the ac clutch and the ac is still blowing very cold air.

Honda should look into their ac system design seriously. Not until every driver quits its automobiles.

Thanks for being patient reading this article.