2015 2.7 ecoboost start/stop feature not working
09-21-2016, 10:07 AM
#11
On the "Trip" menu in the dash screen, if you scroll down, there's one screen that shows the start/stop status. When you're stopped, it should tell you why the engine isn't shutting off. Messages like "Vehicle charging", "Engine warming" etc. What does yours say?
You clearly have no idea how they designed it or how it operates. The starter is already "beefed up", it's not your regular starter. And the engine only stops when it's warmed up. The block is also designed to let the oil come down the block slowly for when it's stopped which is why oil changes take a little longer. The entire engine has been designed for this feature, it's not just an add-on... They've had start/stop engines in Europe for a very long time, and if there were that many problems with it, they would have stopped using it years ago.
Sorry you are having problems but if I had start/stop (I don't - I have the 3.5 Eco) I would be happy if it quit working. They maybe beef up the starter to handle it, but it's got to be extremely hard on the starter, alternator, and other parts of the electrical system to continually cycle on and off like that. It's one of the main reasons I bought the 3.5 Eco instead of the 2.7.
Last edited by BlackBoost; 09-21-2016 at 10:11 AM.
09-21-2016, 11:22 AM
#12
On the "Trip" menu in the dash screen, if you scroll down, there's one screen that shows the start/stop status. When you're stopped, it should tell you why the engine isn't shutting off. Messages like "Vehicle charging", "Engine warming" etc. What does yours say?
You clearly have no idea how they designed it or how it operates. The starter is already "beefed up", it's not your regular starter. And the engine only stops when it's warmed up. The block is also designed to let the oil come down the block slowly for when it's stopped which is why oil changes take a little longer. The entire engine has been designed for this feature, it's not just an add-on... They've had start/stop engines in Europe for a very long time, and if there were that many problems with it, they would have stopped using it years ago.
You clearly have no idea how they designed it or how it operates. The starter is already "beefed up", it's not your regular starter. And the engine only stops when it's warmed up. The block is also designed to let the oil come down the block slowly for when it's stopped which is why oil changes take a little longer. The entire engine has been designed for this feature, it's not just an add-on... They've had start/stop engines in Europe for a very long time, and if there were that many problems with it, they would have stopped using it years ago.
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09-21-2016, 12:58 PM
#13
Senior Member
The 1st thing I did on my new 15 was to deactivate the stop/start system with a paper clip and 15 mins. time. later I added a switch so I could default back to normal if desired tho god only knows why.
09-21-2016, 10:26 PM
#14
No fart cans allowed
On the "Trip" menu in the dash screen, if you scroll down, there's one screen that shows the start/stop status. When you're stopped, it should tell you why the engine isn't shutting off. Messages like "Vehicle charging", "Engine warming" etc. What does yours say?
You clearly have no idea how they designed it or how it operates. The starter is already "beefed up", it's not your regular starter. And the engine only stops when it's warmed up. The block is also designed to let the oil come down the block slowly for when it's stopped which is why oil changes take a little longer. The entire engine has been designed for this feature, it's not just an add-on... They've had start/stop engines in Europe for a very long time, and if there were that many problems with it, they would have stopped using it years ago.
You clearly have no idea how they designed it or how it operates. The starter is already "beefed up", it's not your regular starter. And the engine only stops when it's warmed up. The block is also designed to let the oil come down the block slowly for when it's stopped which is why oil changes take a little longer. The entire engine has been designed for this feature, it's not just an add-on... They've had start/stop engines in Europe for a very long time, and if there were that many problems with it, they would have stopped using it years ago.
Last edited by BadAV; 09-21-2016 at 10:28 PM.
09-22-2016, 09:43 PM
#15
Senior Member
Well its been a long time since I posted here but recently mine has quit working. I have shut everything off I could and it still wont auto stop. It worked all summer then one day it just stopped. I am sure I have met all the conditions. I even went as far to trickle charge overnight and still nothing. I am betting on a sensor somewhere (brake pressure switch). Next step is the dealer. I just need to find some time.
09-23-2016, 07:11 AM
#16
Why?
Well its been a long time since I posted here but recently mine has quit working. I have shut everything off I could and it still wont auto stop. It worked all summer then one day it just stopped. I am sure I have met all the conditions. I even went as far to trickle charge overnight and still nothing. I am betting on a sensor somewhere (brake pressure switch). Next step is the dealer. I just need to find some time.
10-10-2016, 10:23 PM
#17
Auto start/stop fixed by BMS reset
Going to dealer with mine today. Mine says "vehicle charging" 98% of the time. A few weeks ago many things electronic in the drive train and engine were malfunctioning and it turned out to be a faulty battery. New battery cured all but the start/stop. My suspicion is a sensor somewhere or the alternator. The dealer wouldn't talk the last time I was told give it time. 6 weeks should be enough? It did activate on three occasions, but only at night with way more electrical load than when I drive it during the day and a much shorter duration of the engine running. Please keep me posted on your dealer experience if they give you the time of day.
10-12-2016, 10:05 PM
#19
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04-11-2017, 10:16 PM
#20
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