Chevrolet: 2001 cavalier blower motor, air cond, check ups


Question
Thanks for your response,
yes the air is cold and normal, and i had it recharged last year, no matter what setting i put the blower on or hot or cold it greatly reduces the air flow after 10-15 min. I can turn the blower motor all the way but barley anything comes out, I can can hear the motor blowing full blast.  It is still cold, but on a hot day it is not enough to keep the car cool.  If I stop for gas it will start working perfectly when I crank it up again, but not all the time, it has to sit for a while to get back to normal.  
thanks again
dave
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Followup To

Question -
after about 15 min of driving the air flow decreses out of the vents.  I can turn the fan to full power and you can hear the fan blowing, but not much comes out, it sounds like it is clogged, but once you let the car sit for a while and crank it back up, the vents blow normal.  Its no problem for short trips, but long trips its a problem, if you can help, thanks

dave

Answer -
DAVE ;
HI - well I would look to see if the vents are all set in the full open setting , there should be no reason for it to do that. if the blower is on it should work. Is the air cold ? and when was it servicee last. as it might need  a re charge .>>

Answer
Dave . I would try a shop that does air cond. as it could be the condensor or something is not kicking in right. or the compressor could also be going. try one of those shops when they have a special on A/C system check ups for 24.99
this way you will know what you need.  ok