2007HC

The A/C system on my Civic really stinks. I live in Az. When the car is parked in the shade, the A/C works fairly well, but when it's left out in the sun, it's better to roll down the windows. Anyone else have A/C problems?

Poopies

iTrader: (4)

I used to live in the PHX area for the first four years I had my car. I'd always go windows down until the engine warmed up to its operating temp (doesn't take long out there, does it?), then I could fire up the A/C. Faster speeds also help with the airflow. You're good on freon, right?
Hey, at least it's a dry heat, right?

ezone

Yep.
Start the car, run the AC on full blast.
Roll down the windows and drive until the interior temp drops from 196+ degrees down to about 120 and cool air is coming out the vents.
Then roll up the windows.



The AC can only drop the air temp about 30 degrees across the evaporator core in one pass. Your interior is nearly 200 sitting in the sun, it takes a long time to cool it down without some help.

barryaz1

I'm also in Arizona. The AC's OK, but I did need a recharge this year (an '07). But be careful of who works on it if necessary, other threads here talk about the need for this one thing to be done by the dealer:-(

The AC's OK, and starting out by blowing out the ridiculously hot air is never a bad idea.

ezone

I think that only applies to the Hybrids that use an IMA powered electric or dual driven belt/IMA compressor, we have a special AC machine for handling them. They use a very special oil in the AC system, any other oil type is considered a contaminant and a possible safety/shock hazard.

ankurdabas

I have a uestion here .. y would my 2008 ex a/c keeps ticking on and off .. no mater what the outside temperature is .. ?? most civic do this .. dunno y .. by a/c i mean compressor

Poopies

iTrader: (4)

Does it do that when you're just idling, or does it do that while you're driving?

ankurdabas

Both the times .. and i hate it ..its been an year

ankurdabas

Can u help me on my other thread regarding the noise from under the hood ???

ezone

The system is supposed to cycle the compressor on and off to keep the temperature of the evaporator core somewhere between ~roughly 3-8 degrees C so it does not freeze.


But if it cycles without good cooling from the dash vents
Some of the more common reasons have been

*AC system overcharged, too much freon
*AC system excessively high pressure on the high side of the system due to lack of air flow, such as radiator fan(s) inoperative or condenser/radiator fins clogged with bugs and sand and dirt
*PCM determines the engine coolant temp indicates overheating and shuts off the compressor



There may be other reasons too.
Also, it's only a Civic. It's an economy car. The AC system is kinda weak compared to some other cars. Even when it works great, it can take a looooooooooong time to cool down a hot interior.

ankurdabas

OH YAA , dat make sense ,,will try to clean the radiator soon ,. and also check the freon level ,, tnx again