I have a 2016 2.7 Ecoboost F-150 that just turned 1000 miles. Several times during these 1000 miles the start-stop feature has failed to engage. Nothing else is on, i.e. A/C, heater, etc. when this occurs. Does anyone have suggestions on why it may not always come on? And yes, I am talking about when I'm at a dead stop. This happens about maybe 15-20% of the time.

 

http://www.fordservicecontent.com/Fo...ngEnabled=True


there is a list for it to work or not work. i turned it off via forscan lol

 

lite foot on brake pedal will cause it not to engage also

 

Thanks so much!! Next time it occurs, I'll have to see if any of those conditions are there when it happens.

 

It is not supposed to work with max ac but mine shuts off then restarts about 3 seconds later

 

Wow, this is the first I've heard of someone wanting to the engine shut off more often.

 

Mine did this when it was new because it had a very bad battery. But I think you would have seen other symptoms of a bad battery. Mine lasted for about 600 miles before it refused to start.

 

If the AC compressor is running it won't stop.