Hi everyone I have no where else to turn so I hope I can find a good lead or idea. Much appreciated.

I have an 18’ caravan XL with 50k miles on it. I would be driving and all of a sudden it’ll shut off on me on highway speeds causing me to suddenly deaccelerate.
it would be at random intervals, mainly when I change speeds.

it would also not turn over after I crank the ignition. At times it’ll be the first turn of the vehicle and others it’ll take me 10 minutes of cranking and taking out the keys.

I’ve taken it to 4 shops, one was dodge and they all say the same thing. No codes. One shop thought it may be the TIPM or PCM but it was a hunch. In regards to the starter, the mechanics say it looks good. Only thing that was done was change the battery since it was showing it was weak. I did see people on other forums post about the same issue but with no updates.

I don’t want to go in a deep hole and get everything replaced when there’s no evidence towards the fix. Was wondering if anyone has experience with this.

thank you everyone.