Yesterday I went to have freon installed. My ac blows cold air. I parked the car. This morning the car would turnover but wouldn't stay running. I tried several times but it cut off each time. Could the installation of freon have anything to do with the car not starting today?

2002 MC SS with 201k miles

 

Freon shouldn't have anything to do with the car starting. Unplug the MAF sensor and try to start it. Could be a number of things. Check fuel pressure (should be at least 35 psi), spark plugs, wires, any OBD codes.

 

Sounds like a coincidence OR perhaps when the freon was added to the system the mechanic bumped something (like a vacuum line) and it finally worked all the way loose.

Start with the simple stuff, make sure the various connectors are connected and the vacuum lines are connected and not damaged.