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Discussion Starter #1
I own a 2013 Civic EX-L with Navi and climate control AC
I purchased the car new. It currently has 160,000 trouble free miles on it.

Recently I noticed that the AC in my car is acting erratically. It will start off ice cold as it has always run.
Then after a while--the AC air becomes warmer and warmer--it is still air flow from the AC unit but it gets warmer.I keep turning down the temperature but it doesn't improve the coldness of the AC by very much at all.
Then I will stop the car and park for a while ( like 30 minutes or so) and when I get back in the car--the AC will work perfectly again--sometimes for the rest of the day; sometimes for just a few miles then it repeats the warming cycle.
Around town it will work perfectly sometimes. Other times it struggles to cool.

Does anyone have any ideas what may be wrong with my AC?

I am trying to avoid going to a mechanic that will want to replace the entire system when possibly a repair (IE: Sensor or expansion valve or tube of some sort) may repair the issue.

Any and all feedback will be greatly appreciated.

I love my little car and want to keep it running as it has always run--like new!

Thank you again!
 

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I own a 2013 Civic EX-L with Navi and climate control AC
I purchased the car new. It currently has 160,000 trouble free miles on it.

Recently I noticed that the AC in my car is acting erratically. It will start off ice cold as it has always run.
Then after a while--the AC air becomes warmer and warmer--it is still air flow from the AC unit but it gets warmer.I keep turning down the temperature but it doesn't improve the coldness of the AC by very much at all.
Then I will stop the car and park for a while ( like 30 minutes or so) and when I get back in the car--the AC will work perfectly again--sometimes for the rest of the day; sometimes for just a few miles then it repeats the warming cycle.
Around town it will work perfectly sometimes. Other times it struggles to cool.

Does anyone have any ideas what may be wrong with my AC?

I am trying to avoid going to a mechanic that will want to replace the entire system when possibly a repair (IE: Sensor or expansion valve or tube of some sort) may repair the issue.

Any and all feedback will be greatly appreciated.

I love my little car and want to keep it running as it has always run--like new!

Thank you again!
If you haven't done these things yet, I recommend that you do.
1. Check/replace the cabin air filter.
2. Are you seeing water on the ground from the evaporator drain tube - if not, it maybe clogged.
3. Go to any shop that services Air Conditioning & have them check the Freon level.
 

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Technically, Freon, a brand name of a type of refrigerant, hasn't been manufactured or used here in years because of its ability to damage the ozone layer. The most commonly used refrigerant today is R-134.
 

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Discussion Starter #4
Thank you for your response. I do keep the Cabin Filter changed regularly .
I will look for the condensation. And I will have the refrigerant levels checked out.
Thank you again !! I appreciate your time
 

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I am guessing that the evaporator is icing-up over time.
I believe a low gas-charge will cause icing-up.
Advanced-Auto or AutoZone sell the R134 kit with a gauge on the hose. The gauge will low if the charge-level is low.
Another thought is if your compressor-clutch is on all the time of very-often, this would indicate a low-charge.
At idle the compressor should cycle on and off, periodally.
 

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I am guessing that the evaporator is icing-up over time.
I believe a low gas-charge will cause icing-up.
Advanced-Auto or AutoZone sell the R134 kit with a gauge on the hose. The gauge will low if the charge-level is low.
Another thought is if your compressor-clutch is on all the time of very-often, this would indicate a low-charge.
At idle the compressor should cycle on and off, periodally.
Evap icing was my first thought too, except the OP states that air still flows, but is warm.
 

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Technically, Freon, a brand name of a type of refrigerant, hasn't been manufactured or used here in years because of its ability to damage the ozone layer. The most commonly used refrigerant today is R-134.
Actually, because of the popularity of the name "Freon" its name coverage has been expanded to cover both R12 and R-134 and a host of other non automotive refrigerant types, by the owners(DuPont/Chemours) of the trademarked name. This was done 2 maybe 3 years ago.
 

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I own a 2013 Civic EX-L with Navi and climate control AC
I purchased the car new. It currently has 160,000 trouble free miles on it.

Recently I noticed that the AC in my car is acting erratically. It will start off ice cold as it has always run.
Then after a while--the AC air becomes warmer and warmer--it is still air flow from the AC unit but it gets warmer.I keep turning down the temperature but it doesn't improve the coldness of the AC by very much at all.
Then I will stop the car and park for a while ( like 30 minutes or so) and when I get back in the car--the AC will work perfectly again--sometimes for the rest of the day; sometimes for just a few miles then it repeats the warming cycle.
Around town it will work perfectly sometimes. Other times it struggles to cool.

Does anyone have any ideas what may be wrong with my AC?

I am trying to avoid going to a mechanic that will want to replace the entire system when possibly a repair (IE: Sensor or expansion valve or tube of some sort) may repair the issue.

Any and all feedback will be greatly appreciated.

I love my little car and want to keep it running as it has always run--like new!

Thank you again!
Like it or not,with out the proper equipment it is a guessing game, Google a shop and go with your gut.....
 

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Discussion Starter #11
Fortunately the Compressor is cycling as it always has.
I will need to check the charge level of the refrigerant
Thank you so much for your incite
 

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Discussion Starter #12
Thank you--I did find a local shop that has a good repr for AC work.
As soon as they open up tomorrow--closed from storm potential here today--I'll make an appointment
 

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Discussion Starter #13
Thanks!! I appreciate your insight
Heading to a shop this week that has a good repr for AC work
 

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Actually, because of the popularity of the name "Freon" its name coverage has been expanded to cover both R12 and R-134 and a host of other non automotive refrigerant types, by the owners(DuPont/Chemours) of the trademarked name. This was done 2 maybe 3 years ago.
Sort of like Kleenex. ;)
 

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Thanks!! I appreciate your insight
Heading to a shop this week that has a good repr for AC work
Please return to this thread and let us know what was the problem.
Cheers!

Happy to hear that you are safe from the storm.
 
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