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  #1  
Old 09-07-2003, 08:38 PM
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Join Date: Mar 2003
Location: Houston, Texas USA
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Air Conditioner

My AC works very well (sometimes too well) when driving over 35 mph. It gets COLD in the car. However, when driving slower than 35 mph, the AC will not cool the car. Any ideas?
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Jacob Wissler Jr., Houston, Texas, 1984 300 SD
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  #2  
Old 09-07-2003, 08:44 PM
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Possibly, poor air flow across the condenser...
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Old 09-08-2003, 10:58 PM
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What?

So how can a person fix poor air flow over the condenser?
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  #4  
Old 09-10-2003, 01:50 PM
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Does the aux fan come on when you go city driving? If not, check refrigerant pressures because if the pressures and down, it will not kick the fan on, then it won't have adequate air going through the condenser. Therfore, decreased cooling.

Bottom line, check pressures. Pressure values differ due to ambient temps- might need to call the dealership for the values for your particular vehicle-- One of the things they don't charge for-information.
Best of luck
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