Msp A/c...

In traffic with the air on I just gotta make myself hit the gas a little harder. Otherwise the loss in power will give me a jerky ride.
 
I never knew that people could have such problems operating the A/C. Mine only comes on when set to defrost or I actually hit the A/C button. Otherwise I just keep the fan turned off.
 
Yeah, for some reason in the proteges, the ac comes on automatically when set to foot only, or in combination of foot and defrost. Guess you only use the ac button when you want cool air out the vents. I got a MSP and my friend got a P5 about the same time and we were both baffled by that till at first. Only car I ever heard of doing it that way.
 
I leave mine on the top vents and no ac unless i press the button. Defrost and defrost/feet ac turns on automatically. The purpose of ac turning on during defrost is it dehumidifies the air so you dont get foggy windows.
 
All new cars turn the compressor on when in defrost and footwell. This is done to run the air through the evaporator to de-humidify the air so it doesn't fog up the window or get the carpets wet........duh.
 
BlkZoomZoom said:
All new cars turn the compressor on when in defrost and footwell. This is done to run the air through the evaporator to de-humidify the air so it doesn't fog up the window or get the carpets wet........duh.
lmfao

what about the times its humid outside say after a storm and the defrost ac comes on and it condensates the outside of the front windshield??? Then to combat this you would have to turn the defrost on and turn the temperature to the hot zone. Kinda redundant dont you think?
 
Here is another thing you all can do to improve the efficiency of your AC. In Mazda's infinite wisdom they decided it would be a good thing to route the s-pipe off the turbo right next to the AC Compressor, this results in the hottest part of the exhaust system (aside from the manifold) sitting very close to the unit that is working to keep the car cool.

My AC sucked when it was hot outside and my car was idiling until I wrapped my ceramic coated ION Downpipe with exhaust wrap, now it's much improved. I have a heatshield that I am going to put in between the two as well that will help even more. I am sure this mod will be just as effective on the stock set-up.
 
they AC in our cars does cycle on some times during vent,it does this so the seals don't dry from lack of refrigerant oil,if they dry from non-use then in the summer you will go to use it and it will leak the R-134a out.

oh,and under your hood on the passenger side,you will see a refrigerent line at the top it has a fitting with a cap.on that cap is a "L" follow that to your firewall.there you will find a connecter that looks like a doughnut,if you see an eccess of oil ther then take it in to be check,those spring locks are notoriuos for leaking.
mine was leaking from the factory.

it's common for those to leak,no matter what company makes them
 
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oh and R 134-a isn't that bad for cooling
every other option is ether devistating to the atmosphere,or deadly flamable

and it aint about the tree huggers.our atmosphere is only 21% oxygen,and 1 hydrocarbon atoms will destroy over 1,000,000oxygen atoms.so if you like to breath you will respect thier choices to use R 134-A.
 
wicked said:
oh and R 134-a isn't that bad for cooling
every other option is ether devistating to the atmosphere,or deadly flamable

and it aint about the tree huggers.our atmosphere is only 21% oxygen,and 1 hydrocarbon atoms will destroy over 1,000,000oxygen atoms.so if you like to breath you will respect thier choices to use R 134-A.
I'm prefectly fine with it, it works for me. But it's a simple fact that R-134A is about 30-40% less efficient for heat transfer than the old R-22 in home AC, let alone R-11 and R-12. The systems are just designed better to compensate.
 
My a/c hasnt worked since winter. I put it on and the light comes on but it just blows warm air. Anyone know what might be wrong?


Chris
 
Glowmunkey said:
I'm prefectly fine with it, it works for me. But it's a simple fact that R-134A is about 30-40% less efficient for heat transfer than the old R-22 in home AC, let alone R-11 and R-12. The systems are just designed better to compensate.

dude your a little off,most homes use R-22

and it's only 12.6% less effeciant
 
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