Hey Everybody. I just joined this group and am hoping for some help with a 2016 F150 4X4 Crew with 5.0 V8 FFV engine. Truck has 47k miles and has recently started with a very rough idle a cold start. I need to feather the gas just to keep from stalling. Runs great when warmed up. Dealer has had truck for 7 days and can't solve the problem. Dealer replaced the Purge Valve, but that did not work.

Any insight would be appreciated. - Thanks - Surveyor1916

 

Welcome to the forum, good luck with your truck.