Hi Renee, I am sending you removal instructions for the compressor from the GM service manual. Takes some time and patience as these are a little more involved than most systems, because of the design and the way they are mounted. Good luck with it and thanks, Bob
Important: Cap or tape the open compressor hose immediately to prevent contamination.
Tighten Tighten the compressor mounting bolts in sequence to 40 N·m (30 lb ft).
Tighten Tighten the compressor mounting stud to 9 N·m (80 lb in).
Tighten Tighten the compressor mounting nut to 40 N·m (30 lb ft).
Important: DO NOT allow any of the mineral base 525 viscosity refrigerant oil on the seal washers to enter the refrigerant system.
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Important: After tightening the compressor hose (3) to the compressor (2), there should be a slight sealing washer gap (1) of approximately 1.2 mm (3/64 in) between the compressor hose (3) and the compressor (2).
Tighten Tighten the compressor hose to compressor retaining bolt to 26 N·m (19 lb ft).
I'm trying to help out Bob here.
Have you removed the water pump yet?
Once you remove the water pump you still have to back out that one stud in the top left of the compressor.Leave the stud loose in the compressor until you can roll it clear enough to pull the stud out.
Everything is tight in here but it should come out of there.