My car is overheating and I had the AC relaced last year. I just had the oil

I would check to see whether or not your cooling fan or fans are coming on first and foremost. The A/C puts a big load on the engine and will cause it to over heat with out the fan(s) running.

we have the same problem w our dont know what causes it but we hot wired the fans to run direct which means they run as soon as the key is turned on maybe you should try that...good luck hope this helps