2006 chevy trailblazer 4.2l from a 2004 trailblazer
We got this trailblazer for free from my girlfriends father. he worked at a shop and swapped the engine from a 2004 trailblazer into our 2006 trailblazer. To do so had to disconnect the ac lines. a year later I decided to finally fix the AC, i got the vacuum, manifold gauges, 3 cans of 134a, and a can of oil all just incase. I hooked the vacuum up today ran it for an hour got down to 30 nice and good. turned it off left it for an hour and was still holding the vacuum, so no leaks that's a plus. Now onto my issue. I replaced the vacuum with a can of 134 purged the air and then attempted to fill it with ac on running full blast (also tried on low) the low side gauge is now sitting at 100 and not moving. the high side says below 0 on the vacuum still. the compressor just wont kick in. A buddy told me to jump the relay so I did. the clutch or whatever was spinning now but the gauges stayed the same. so end story still has hot air. What should i start with. if i have to i can do the compressor, drier, and orifice tube. Dont wanna break the bank on it all if i dont have to.