Four problems related to check engine light on have been reported for the 2015 Ford Expedition. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Ford Expedition based on all problems reported for the 2015 Expedition.
Was traveling down highway and vehicle started running rough, check engine light came on and exited highway when safe and vehicle quit running and wouldn't restart. It seems the timing chain broke and then damaged the engine. Dealer rep said they have seen a lot of these, but not recalls yet.
When pulling out into heavy traffic on a divided four lane road, the vehicle suddenly lost power and went into limp mode almost causing a serious accident. The check engine light came on and the code was later to be determined p2112 throttle actuator a control system stuck closed. After researching the issue it was apparent that the Ford 3. 5 ecoboost motor has quite a history of these type failures. Often driver safety is compromised as the vehicle suddenly and without warning will lose power just when you need it. The fix is to install a new throttle body with electronic actuator.
The day after we bought this vehicle used had 78,000 miles on it we were driving on a 4 lane road about 60mph when the check engine light came on and it put itself into neutral. The gas peddle would not engage. After we turn it off and on a couple times we were able to drive it again. This has happened at least three times since we have owned it. We bought it 4 months ago. On three other occasions the check engine light came on while returning home from a 3 hour drive on a highway going 60mph down a hill and it was under powered but still drivable. We had one turbo replaced however the light has come on again but the dealer couldn't fix it because the check engine light cleared and they can't find anything wrong with it. Last week we were driving in town thankfully under 30mph and the break peddle got hard and couldn't be pressed down. A light came on that said break failure we had to engage the emergency break to stop. We had it towed no lights were on when it got to the dealership they put 30 miles on it trying to recreate the problem and couldn't get it to do it again. This vehicle is very unsafe it's a matter of time before it either shuts down in the middle of a busy highway or the breaks won't work and crashes into something or someone. We have a vehicle now that we cannot drive and cannot fix and if we trade it in we will be out a lot of money and this unsafe vehicle will be put back on the lot.
On today's date, April 9, 2019 at approximately 4:20pm cdt, I was entering freeway accelerating to 40 mph when power was lost and quickly decelerated to under 5mph. Engine still running, but it went into �limp home� mode, no faster than 5mph. Was able to get to distress lane. Wrench symbol displayed on instrument cluster. Turned off engine and checked owners manual. . . Symbol indicated power train trouble. Turned on started ok, and continued to freeway speed. About 1 mile later, lost power again, slowing to �limp� mode. This time check engine and wrench lights came on and engine noticeably rough running. Turned off/on started ok, exited freeway and drove city streets home, about 3 miles. Check engine light never went off. Wrench light did go off after 2nd re-start. Manual recommends having Ford dealer check it out. That's what I'll be doing tomorrow. This spontaneous loss of power has risk of causing a crash from other driver's as sudden decelerations without brake light warning is very dangerous.