problem with AC unit

[Robbster]

Hello all- need some help??

 

I bought this 1993 Chevy Silverado, the guy said all I need to do was charge the AC up, well 1st I had to get it converted to R134, which it is now. the place that did the work, said that it is clodged up and will not blow cold air. When I start the AC it tries to run and than stop and than tries again..........almost shuts down the engine. The place that did the work wanted to charged me 1200.00 to fix it and put in a NEW sleeve.

 

Please advise if you can for help on this matter.

 

Thanks-

 

Robb