Hello .. So I would like to share this issue with u guys .. I fined it very weird .. I had a 2010 GT and 08 GT before it and nothing like this happened
So the story began when I changed the oil and the filter to my 2014 mustang RS3 and the process was smooth .. after that in like half an hour I started to hear a ticking sound under the car speacily when driving at low speed (10-20) mile/hour .. after that the car started chocking and it's not responding to me .. Then the (powertrain malfunction/reduced power) sign went on .. I turned off the car for few minutes and started it again .. The sign went off but the car is still acting/sounds weird and it does not look normal at all .. Next day in the morning I tried to start it but i failed.. After 5-6 tries It worked but still sound weird and ticking is still there .. next day it was chocking again but started at first try .. Same thing the day after that .. So I would like to ask u guys if u had same issue before or any thoughts or advice for this problem
Thanks

 

Did you use the correct oil? Have you checked the level?

 

Yes it was the correct oil (5W-50) and the lvl was in range as well ... I forgot to mention that when the (powertrain malfunction) sign showed up the (oil temperature) gauge disappeared for 5-10 seconds and it was only ----- then it appears again giving me the temperature is normal

 

I would start by pulling codes and see if that points you in the right direction.

That's if your sure you put the drain plug back in lol........... I've done it once.....ONCE !

 

Under warranty so take it in for service.