I bought a 2001 chevy venture a few months back and today tried the AC
for the first time and turning the AC on does not change the air temp
one bit.   after looking at it more carefully, i realized that when i
push the AC button, usually there is a little sound and the engine
noise changes when at idle as the compressor engages.

well i opened up the hood and noticed yeah.. pushing the AC button does
not engage the compressor.

is there a simple way to check if its just a bad electrical connection
to the compressor from the AC button?

if the solenoid is bad in the compressor, does that require replacing
the entire compressor?

can anything other than a bad electrical connection or faulty solenoid
cause the compressor not to engage at all?

thanks

steve