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Honda Civic Climate Control System

73 messages,  Last post on Sep 26, 2008 at 10:17 AM

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What is this discussion about? Honda Civic, Heating / Cooling, Coupe, Sedan


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#2 of 73
Re: [tjs01] by morganscivic
Jul 18, 2006 (6:29 am)
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I am taking my '06 EX in for the second time today to have the A/C problem addressed. I've found that it blows hot upon acceleration. Definitely not pleasant on a hot day when what you want, and expect, is cool air! It's nice - in the relative sense - to know that someone else is experiencing this also.
I was also told I had a power steering fluid lead at my first oil change! The part is in, so hopefully that will be repaired.
I haven't had a Honda since the early 90's and I definitely expected more than what I've experienced so far. I paid for the top of the line Civic and never expected to have any problems so early on.
#3 of 73
Re: [morganscivic] by perezr
Jul 18, 2006 (2:54 pm)
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Replying to: morganscivic (Jul 18, 2006 6:29 am)

The AC blowing hot upon acceleration is not a problem, it is a feature! It is this way by design as AC takes a considerable amount of power from a small 4-cylinder engine.
 
When accelerating briskly, the AC compressor is temporarily disengaged to give you full power for acceleration. The discharge air temperature does go up and "feels" hot, but is still cooler than ambient. Once acceleration is completed, the system returns to normal operation.
 
You can prevent this from happening by accelerating more gently. Go try this and you'll see it in action for yourself.
 
Perhaps you should've gone with the Si for a peppier takeoff!
#4 of 73
Re: [perezr] by kero1
Jul 18, 2006 (3:45 pm)
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Replying to: perezr (Jul 18, 2006 2:54 pm)

Hey,
 
I am very surprised to hear about this feature when accelerating briskly the AC compressor turns off as I have merged on the highway pretty quickly with AC on and never noticed the compressor turn off.
 
I actually turn the AC button off when getting on the highway now to get that little extra juice I need on LI.
 
Is this fact about the compressor turning off when accelerating hard??
#5 of 73
Re: [perezr] by sheldo1
Jul 21, 2006 (5:29 am)
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Replying to: perezr (Jul 18, 2006 2:54 pm)

Boy, if you think this is a feature I wonder if you would ever find anything wrong with your car. I personally think it is a poor design that will probably be changed in 2007. I think it was an "oops" on Honda's part.
 
I have had numerous 4 cylinder cars and have never had warm (not cooler than ambient) air come out when accelerating.
#6 of 73
Re: [perezr] by morganscivic
Jul 21, 2006 (7:10 am)
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Replying to: perezr (Jul 18, 2006 2:54 pm)

The AC blowing hot upon acceleration is not a problem, it is a feature! It is this way by design as AC takes a considerable amount of power from a small 4-cylinder engine.
 
Well, if it's a "feature", it's a damned poor one! Who wants to feel hot air in their face on a 100*+ day!? I'm very happy with my '06 EX except for this one major flaw. It's just not right.
#7 of 73
Re: [morganscivic] by leavenfish1
Jul 21, 2006 (9:05 am)
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Replying to: morganscivic (Jul 21, 2006 7:10 am)

Just point the vent away from your face until you've hit cruising speed.
#8 of 73
Re: [leavenfish1] by morganscivic
Jul 21, 2006 (9:59 am)
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Replying to: leavenfish1 (Jul 21, 2006 9:05 am)

Umm... ok. That still doesn't change the fact that Hot Air is blowing into the car through the Air Conditioning system. And, rather than paying attention to my driving, I'll be adjusting vents constantly.
I've never heard of or experienced such a thing in any vehicle and it's simply not acceptable in a brand new 2006 car, no matter how my cylanders it has.
#9 of 73
various... by hangaralf1
Jul 25, 2006 (11:38 am)
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i haven't noticed the hot air upon hard acceleration. i suspect that this is because when i need that hard acceleration, i either turn it off or am too intent on getting up to speed and staying on the road when i have the pedal to the floor. it is only a 1.8 liter engine and with the ac on, acceleration will be compromised. If the ac actually disengages when trying to accelerate like that, Honda must figure your priority is in getting up to speed fast (rather than staying cool when doing it). If you don't like it, get something with a bigger engine and/or more torque. ( i used to have a volkswagen diesel that literally took 46 seconds to reach 60, and never made it to 60 with the ac on)
 
i have noticed that ac blows colder when the engine rpms are up (like when you take it into 3 or 4k rpm and don't bother to shift up). and a lot less cool when you just idle - i have to rev the engine and maintain it there for a while to get cool air again.
 
a "design characteristic" does not imply that it was "engineered in". to be sure, this engine miss is not engineered in and definitely not intended, but something that happens when it does as a result of something else - i've experienced it as well, and other than the brake handle digging in to my knee, my biggest complaint - I believe that it is a programming error or blip or bug or whatever - related to the fly-by-wire throttle. i will mention it to my dealer the next time i get there (which may be a while since they are some 4 hours away), and i'll let you know what they said.
#10 of 73
Re: various... [hangaralf1] by targettuning
Jul 26, 2006 (5:06 am)
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Replying to: hangaralf1 (Jul 25, 2006 11:38 am)

To be sure my "engineered in" comment for the engine miss was entirely tongue-in-cheek and in reply to the "design characteristic" comment uttered by some service weenie.
 Mine does blow less than cold air upon acceleration and not even at full throttle acceleration. At 140 hp the engine should deliver acceptable acceleration AND be able to power the AC compressor while doing it. It isn't that weak. I had a 1990 Taurus S.W. 3.0 V-6 that was rated at 140 hp (it had more torque though).

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