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MASTER TECH, Honda Service Technician
Category: Honda
Satisfied Customers: 5753
Experience:  28 years of Honda training and a master Honda tech
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Civic Si: I have a 2009 Honda Civic Si two door where my A/C

Customer Question

I have a 2009 Honda Civic Si two door where my A/C is not cooling properly. When parked in a garage for awhile, upon turning the car on and A/C running, there are cool air coming out. after driving awhile, the A/C air gets WARM even. then after driving for a long while cool air comes back on but it is NOT as cool as what the A/C is meant to be. I have been reading that my clutch relay fuse may be bad???
Submitted: 2 years ago.
Category: Honda
Customer: replied 2 years ago.
(Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call + Provide Diagrams, Manuals, or Instructions. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  MASTER TECH replied 2 years ago.
Hello I am master tech and will be able to assist you first things first I need to know the a/c pressures static and running on both the low and high side.for this you will need a set of ac gauges.the most likely issue here is a low charge on the system due to a small leak
Customer: replied 2 years ago.
I took it to my mechanic and they have injected dye into the refrigerant and there are no leaks. I do not know the A/C pressure static. My mechanic also said that the refrigerant in my A/C is also full at manufacturer's specification.
Expert:  MASTER TECH replied 2 years ago.
Ok thank you for the info. You mentioned this will stop blowing cold. Does it take about 15 minutes about for it to start blowing cold again.
Customer: replied 2 years ago.
Yes....Sometimes it takes longer on hot days and sometimes it is is not as predictable as being cold to warm or warm to cold every 15 minutes.
Expert:  MASTER TECH replied 2 years ago.
Ok then you have a bad expansion valve. This is inside the evaporater box inside the dash. This is a tell tail sign for this failure. Mew have been seen these at my dealer and same concern. So to correct this you will need to replace the expansion valve.
Customer: replied 2 years ago.
How sure
Customer: replied 2 years ago.
How sure are you of this conclusion and how much do you think it will cost me to get this replaced and fixed?
Expert:  MASTER TECH replied 2 years ago.
im very sure but if the car was in front of me and I had the ac gauges hooked up I would run the system until is failed. then seen the low side pull a vacuum then I would be 100 %