One problem related to engine knocking noise has been reported for the 2015 Ford Mustang. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Ford Mustang based on all problems reported for the 2015 Mustang.
Huntington beach Ford, CA from 2018-2020, has not found a knocking noise ether in the transmission or engine v-6, 3. 7l. The dealer gave me false information on the engine noise. The noise was for the Mustang v-8, 5. 0l. Ssm 47787. Ford customer relations center, back that up doesn't apply. They said go to another Ford dealer. Theodore robins Ford, costa mesa ,CA. Found the problem, variable cam timing. Now robins Ford states no warranty. I have premium care expires 2021. Noise at idle 900 rpm in park. In drive up to 15 mph.