[Fot] No Lbc No free lunch

[Rob]

I took my  1994 Honda Accord  ( 50k miles on it ) to Valvoline quickie  oil
change for a free  A/c check. It's not working well.  45 mins later the tec
told me it was either a relay or the compressor. While he was working with a
meter the car almost stalled out but not quite. He also admitted he did not
know which relay was which
 10 miles after leaving  the shop and with out the A/c on the compressor
suddenly kicked in. It felt and sounded like a J brake being engaged. It has
settled down some what but still makes a loud noise.
 So far I am getting a song and a dance from these guy's and no satisfactory
explanation.  Any info is appreciated  thanks     rob