I have a 2007 Mercury Milan v6 automatic, while i was driving on the highway. My traction control light and wrench light came on. While i was driving 65 mph on a dry road. I pulled over ,and shut off the car then i stared it up. After that it ran fine for about 40 miles and all that happend again. The dealer found nothing wrong and no codes. What could it be?? And the millage is 60k miles. I really need help

3.0L V6 (and box behind it?)
post a problem fist the A/t box list of failures is 20 paged + long, name one?
that way we the blind can be on the same page?
and there is not just one box solenoid/the word is solenoid's (MANY INSIDE IT,DEEP)
say my a/t box shifts funny?, late? or slips? or will not shift in drive,1,2,3,4,5 or sticks at 2.??????? DRIVE DEAD,REVERSE DEAD , low dead
PRNDL
some of these 3.0L have a mazda transmission
called
Mazda trans.; Trans. code FNR5
seen here all

https://www.rockauto.com/en/catalog/mercury,2007,milan,3.0l+v6,1434320,transmission-automatic,shift+solenoid,8476


inside the transmission ,vb ,valve body. 99% of cars FOR SURE 2007 !!!!all.
6 solenoids seen here best

https://www.amazon.com/Mazda-FNR5-6PC-SOLENOID-KIT/dp/B073HG31TW




but not A?T box but is was.

not the console shift lever park/lockout / solenoid.?
no actual problem told? just a hunt. (vague)
shifter lever stuck in PARK???????

when the check engine light blinks this is a sign of misfires but your going to need a scanner to determine which cylinders misfired and clear fault memory i would then recommend swapping coils and plugs from cylinders that misfired with ones that didnt and see if misfires migrate to determine bad coils or plugs

You shouldn't pay more than $40 for the installation of an o2 sensor. It is only a 15 minute job at max. Good Luck!

car has detected a problem with itself could be 1 of a hundred things auto parts store will pull code from car to tell you the problem with it

check rear stabalizer or shock mounts

I did the same thing twice, But i can't get it to start again. What gives?

I did the same thing twice, Yet i cannot figure out how it works. What gives?

possibly the transmission

Remove the lugs at the battery. Clean the posts and the lugs - then reconnect. Your battery won't charge (and the jumpers won't work) largely because of a film on the + post and lug. If you live in a hot summer area, (Arizona) the problem is especially troublesome.

had a similar problem once,, was told it was the "mass" sensor. which mesurses oxygen flow. and adjusts as needed when i was checking under the hood found a broken vaccum line,,,,that was it..

Not a sure fix but somthing to check