What causes a 2005 envoy to stall when the air condition is turned on?

A 2005 Envoy may stall when the air conditioning is turned on due to several potential issues. One common cause is a failing idle air control valve, which struggles to adjust the engine's idle speed with the added load of the AC compressor. Additionally, a weak battery or failing alternator might not provide sufficient power to support both the engine and the AC system. Lastly, a clogged air filter or issues with the fuel system could also contribute to stalling under increased load.