2016 Ecoboost Mustang won’t start and battery is fine

Asked by LillyMiamiMustang May 06, 2018 at 03:32 PM about the 2016 Ford Mustang EcoBoost Premium Convertible RWD

Question type: Maintenance & Repair

I own a 2016 Ecoboost Mustang and since  2 days ago is
acting funny. Try to start it and it won’t after only after
several intents. At the beginning I press the Start button
and sounds like the battery is dead. (Just click sounds
when Pressed.) I went to autozone to check the battery
and is great according to them.  After several itents, starts
with difficulties. Still runs great but continues happening
every time after is been parked after hours.  Why is this
happening. ?
Hope you guys can help.
Thanks.
“Mustang girl fanatic”

1 Answer

60

Hello Lilly Bigdog in tampa here. search "starting problem" here are my posts on the same problem, have heard this a number of times and dealer tried to be helpful, but could not fix. my resolution is included. "was there a resolution to the staring problem?? Have the same thing with my 2016 eco. the dealer replaced the starter, but did not fix. why they did not do a bench check of the starter is beyond me. Mechanics are trained and not educated. they follow a procedure and then call the factory. car now at dealer for week and a half. bigdog1026, we have had our 2016 Mustang in the shop 7 times since purchasing 6 months ago with 3,389 miles on it at purchase. It is at the dealership more than on the road. The car will start, back out and it goes dead. All accessory power is working - lights, air, radio, etc. the push button continues to blink green until the car resets itself which can be a very long time. Up to an hour and 37 minutes as of yesterday. They have replaced battery, fuel control module and fuel pump. Obviously, nothing has worked and Ford doesn't want to buy it back. Any answers to your Delia??? We hate our Mustang now. No fun in it now, We are considering seeking legal council to attempt to resolve this matter. Hello 2wilsons I feel your pain, but cannot offer any suggestions. returned the pony to the dealer again, they had it for a week and replaced the ECU. It started fine for a month then began going intermittent again. it got worse and worse. Anyhow, my problem is in the starting. once started, the car runs fine without trouble. Returning it is not an option. I have modified it for shows and Xcross. So my fix (?) was to install a switch which put 12v power directly to the starter. I push the start button which activates everything (but the starter does not work), take my foot off of the brake, push down on the aux switch to start. Perhaps 25% of the time, the starter will go the first time. if not, I can push the switch five times in a second. the starter will usually operated within the first five pushes." the direct power switch to the starter continues to work fine, but i always wonder about the next time i try to start

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