Why did the mechanic tell you to change all those parts? What the heck is a
Sucktion assembly?

OK, so I read the topic about the malibu AC prblems but nothing worked for
me. The mechanich told me I need to change the Orifice tube, Dryer and
Sucktion assembly, and the compressor. This will all cost $900 !!! I tried
to be slick and changed everything except the compressor, but I cant
recharge the system. The refrigerant can stays full and the gas does not
cycle in the system. Do I really need to change the compressor? If yes,
then am I able to do it myself?

You cannot charge the system if the compressor is not running. What is wrong
with the compressor? I would take it to a company that specializes in A/C.
You cannot get air or moisture in the system. You can change the compressor
yourself but you need to put the right quantity of refrigerant oil in the
system and you will require a vacuum pump to extract all the air in the
system out before you recharge. Are you sure that the problem is not with
the switches or the control panel?

OK, so I read the topic about the malibu AC prblems but nothing worked for
me. The mechanich told me I need to change the Orifice tube, Dryer and
Sucktion assembly, and the compressor. This will all cost $900 !!! I tried
to be slick and changed everything except the compressor, but I cant
recharge the system. The refrigerant can stays full and the gas does not
cycle in the system. Do I really need to change the compressor? If yes,
then am I able to do it myself?

     I'm glad you wrote !   You are asking for major problems,
First off, the system needs to be evacuated, failure to do so, will
result in moisture damage to your system, including that fancy new
accumulator.  Secondly, if your adding R134A to an unevacuated system,
you run the risk of oxygenating the system, which can cause the
refrigerant to become explosive.

     There is nothing wrong with  DIY  AC service, provided you follow
up with an evacuation, and recharge by a competent shop.  At this point,
spring for a rebuilt compressor, than you got all new.  Tell the guy at
the AC shop your mechanic's evacuator broke down. [ To save face ]

    Just curious, how many cans were you going to add, or how will
you know when you added enough  [ or too much ]  ?

break down and get a new compressor not rebuilt follow all instrucions was
the orfice full of metal if so then back up and flush the a/c system the
900.00 est was for a reason cause the parts and time. theres a trick you
will waste 1 can of r-134a install a can on the low side and release the
high side to clear out the air and charge

Thanks for all the replies, they are all very helpfull and make a lot of
sense. I will take my car to the mechanic shop (a different mechanic shop)
to evacuate the system and charge it up.
Note: I tried to add refrigerant to the system but nothing happened. The
refregerant container remained full for some time and thats when I knew it
wasnt working.

Have it evacuated /  recharged  after DIY repair   Don't just pump a
bunch of refridgerant in.

When it comes to AC, if you don't know what your doing, don't do it !
At this point, you might as well go for a rebuilt compressor, than have
the system evacuated and recharged.   Your still hundreds of dollars
ahead, and safe.   Adding R134A to a system full of air is asking for
trouble, air oxygenates R134A, which than becomes explosive.