Before you buy it, Make sure your A/C compressor is working.
To find out if its working turn on your car and ac and put it on the highest setting.
and if the center of the compressor is spinning then its working and you could go ahead and buy that! lol
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If the center is not spinning, Its becouse it has none of that a/c freeon or w.e .
so the cars computer wont turn on the compressor because it can burn out, since the freeon lubricates it.
and in order to put the A/C pro on your car, Your a/c compressor needs to be spinning,
To make it spin
you need to take out the A/C relay. and put a paper clip in its place.
then turn on the car and a/c and the center of compressor should be spinning. then you take out the low side of the a/c service cap and plug that A/C pro can and when your done.
put the A/C relay back on. and the compressors should be working fine and your a/c will be blowing cold!!!
lol