I have a little over 1k miles on my 06. Upon delivery, I discovered a problem with the A/C. The vent temp would fluctuate from mild cold to room temp, I'd say a 20-25` swing. When I brought it in to the Honda dealer for service, I noticed quite a few A/C problems on the appointment book. After they "fixed" it, I did notice a difference in the temps. The vents temps got much colder, ice cold. But, the fluctuating remained. The temp swing is now about 15` and it's cooler on the warm part of the cycle. The temp fluctuation occurs at steady cruise, mild street driving and idle. I know rapid accereration shuts off the compressor, that's not the problem. Is this cycle normal for Honda or S2k's?

-Connelly

 

Every one I test drove before buying mine did that. After a couple months of ownership, I have decided that it is directly related to RPM.

My hypothesis: Not many A/C pumps are made to do 9Krpm. To compensate, Honda put a larger pulley on the A/C pump in order to gear it down. The problem: it doesnt pump hard enough at low RPMs (below 3k). Try driving normally, but shifting around 5k and see if the A/C stays colder.

 

I've had the same issue, and was told it's normal

 

Thanks. One less thing to worry about now. Just out of curiosity, I'm going to test the high RPM theory which means I'll just have to drive with a bit more gusto.

 

i thought that the ac cycled on and off.. maybe i was mistaken.

 

I thought there was something with the condenser shutting off under hard accel...

...but I do know that the A/C system is a closed system, and you'll get cold fluxes because the heat pulled from the cabin into the coolant does not always get fully dissapated before the coolant has to pull more heat again.

 

switch from fresh air to recirculate every 10 min or so.. the recirculate definately blows colder, then you can switch back to fresh air

 

Same issue here. I do notice it works better if I keep the RPM's up.

 

now this explains why i gotta turn it down when im cruising...
but turn it back up when im stuck in traffic; i just thought
i was baking in the sun too long