Dear JK:
A/C problem on my 2001 Chevy Venture van and the
A/C is blowing
warm
, quit  working.  I  took to a mechanic shop, they put freon in
about 3 weeks ago, now it is  blowing  warm  again. Dont want to take
back again. Any ideas where a leaking is?
Do you know of any areas that have leaking problem i could find myself
or even fix.

JK:
Thank you for the tip / donation.
Yes, here are a couple of common areas that leak freon on 1997 -
2003 Chevy   Venture, Pontiac Montana and Oldsmobile Silhouette
minivans.
Here are a couple of pics and descriptions to look at. These are the
most common freon leaks on these  vans.
Hope this  helps.   
Freon leak common areas an venture van, montana and silhouette.
Common areas of freon leaks that cause warm air to blow with the A/C on.
Some of the most common areas of freon leaking on Chevrolet
Venture, Pontiac Montana, Oldsmobile Silhouette Vans.
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1- the pipes leading to the rear of the van.
This look is front under van. Leaks inside
plastic covering.
2- The passenger side lower
portion of the condenser. You may
see oily wetness.
2001 Chevrolet venture. 3400 v6
Question = When I turn the AC on in the front heat blows out in the front while ac blows out in
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Answer: You either have a control head problem, or
more likely an actuator problem. There are doors
inside your heater case that control the flow of cool and
hot air to the proper places when you select them on
the control head. If there is a problem with one of those
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temperature. Luckily, when there is a problem like this,
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