For the past 4 months, my 2013 C-max has had the gas part of the engine stop running while driving. The electric continues enough to get off the road, until the battery is depleted. This is often accompanied by a yellow wrench alert, but not every time. The shutdown is preceded by the A/C cutting off, weakly blowing warm air while another fan under the dash runs very loudly.
Once I limp over to the side of the road on battery power, if I turn off the ignition and turn it back on, it returns to normal operation (until the next incident, which could be days or weeks later).
I purchased an OBD2 scanner (Autel MaxiLink ML529) and ran an OBD scan immediately after the yellow wrench shutdown. No codes were found. The Ford mechanics also found no stored codes.
I've taken it in to the dealer, but so far, they haven't been able to pull any codes after one of these events. They've updated the PCM to the latest version, but that hasn't solved the problem. They are stumped.
Has anyone had this problem and found a solution?
Edited by Mooresworld, 13 February 2019 - 03:12 PM.