Would Not Start Afer Setting A Long Time
 

It is a 2010 Acadia. It set for 4 months. I tried starting it but no luck. No fuses blown. I keyed it several times but no start up. I am from old school. I sprayed starting fluid in the hose that goes into the rubber intake. It started ran rough for a while but it runs good and idles fine. What made it finally get gas to the fuel system. Thanks