Last post on Sep 30, 2013 at 7:06 PM
You are in the Maintenance & Repair
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Heating / Cooling
#802 of 839 Temp Drop Through Air Conditioner ?
Jun 02, 2010 (6:40 pm)
How much should the air temperature drop from ambient after going through a car air conditioner ?
#803 of 839 Re: Temp Drop Through Air Conditioner ? [alternator]
Jun 03, 2010 (4:01 am)
The drop depends on the ambient temperature, the humity of the air, and the heat of the sun. The factory service manual gives a chart of the expect temps at the CENTER dash outlet.If you have a thermometer from an auto store meant for AC, stick it int he center outlet and drive. Unless the sun is very strong and the humidity is very high, I'd expect it to show about 60 after many minutes of steady driving with the fan on medium speed. I have not checked the manual.
#804 of 839 Re: Temp Drop Through Air Conditioner ? [imidazol97]
Jun 03, 2010 (5:44 am)
I wonder if a 25 degree F drop in an average day ambient of 88 degrees F is about normal ?
Jul 22, 2010 (1:22 pm)
my a/c doesnt work or doesnt trow the air cold when am stop or on parking it a 2003 montana pontiac
#806 of 839 Re: a/c [pashuko]
Jul 23, 2010 (7:52 am)
Could be a nunber of things, one quick thing to check is the condition of the cabin air filter(s) if so equipped.
#807 of 839 Re: a/c [pashuko]
Jul 23, 2010 (8:53 am)
or your ac is marginally effective.
- to little, or too much freon
- compressor weak
- obstruction in the freon flow
- engine idling too slow
- obstruction in the air flow thru the 'radiator' (will keep it simple here), or radiator/ac fans not working.
#809 of 839 Air Conditioner/Heater Air Intake Vents
Feb 06, 2011 (2:21 pm)
Somewhere I read that the intake vents (near the windshield wipers) need to be kept clear of snow and ice. I would think that if you were satisfied with using the "recirculating air" mode it wouldn't matter. Is there something I'm not taking into account ?
#810 of 839 Re: Air Conditioner/Heater Air Intake Vents [alternator]
Feb 07, 2011 (3:28 am)
Generally, the recirculating mode is not recommended to be used for long periods of time, as this allows the cabin air to become stuffy. So you want to use external air most of the time, which means your intakes should be kept clear of debris.
#811 of 839 Re: Air Conditioner/Heater Air Intake Vents [srs_49]
Feb 07, 2011 (5:08 pm)
You must not have a pet, or an uncle Louie that let's one loose every couple mins.