Thanks! I got the least expensive tools I could find to get the job done. Cost was definitely a factor
. As mentioned at the top, this started with a failed clutch. Originally I ordered some cheap o-ring expanders that broke and just the clutch coil from eBay which was the wrong size. That's when I "upgraded" and bought a real tool and an original AC Delco clutch assembly.
Anyway, I knew fundamental gas physics, but not much about refrigeration systems. From the local library I checked out
"Automotive Heating and Air Conditioning" by Tom Birch, 5th ed., Pearson Automotive 2010
"Automotive Service, Inspection, Maintentance, Repair" by Time Gilles, 4th ed Delmar Cengage Learning 2012
I purchased the Matrix/Vibe Haynes Repair manual
I looked at the Matrix shop manual online (madstyle)
I wouldn't say any of these was super helpful, but I did gather some info from all of them. I also searched the web and youtube a lot, but some of the information was contradictory.
I spent about $490 total. Of this about $300 were parts:
Cost (USD) Item
131.44 clutch assembly
31.54 socket set
20.27 snap ring expander
18.73 clip set
78.35 Condenser
12.08 O-ring set
12.95 shipping
15.02 dye
14.07 PAG oil
14.95 cans of R134a
59.99 vacuum pump
12.53 dye cleaner
5.79 SAE-ACME adapter
6.99 can tap
4 shrader valves, valve tool, cap
6.99 UV flashlight
5.99 uv yellow glasses
35.99 manifold gauge set
487.67 total A/C fix with tools
301.59 parts
Some of this was excessive like the socket set (needed just one to remove accessory belt), clip set (came in handy for bumper cover and splash guards, came with tool), dye cleaner (haven't used yet). Dye can be had cheaper but came in a can that plugs right on the low-side port which was useful and can be used for multiple applications.
Comparing this to what a shop would charge, I definitely came out ahead (quote for condenser swap was $1k. not sure about clutch but I'm guessing $300-$500). Of course I spent way too much time