One problem related to engine rattling and whining sounds has been reported for the 2016 Ford Fiesta. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 Ford Fiesta based on all problems reported for the 2016 Fiesta.
When accelerating after stopping my 2016 Fiesta se shudders quite hard moving from 1st to 2nd gear and then also from 2nd to 3rd. I've noticed that the length of time the car shudders is increasing. The shudder is accompanied by a loud rattling sound like if you shook a bunch of screws in a metal container. Sometimes loss of power and high rpm's occur. I will take it back in and this will be the 4th time. The Ford dealership tells me that the shudder doesn't harm the transmission. I don 't believe that. Can't even sell the car (I tried) because this car's resale value is zero. Next I'm thinking of pursuing a lemon law resolution.