we have a '95 olds ninety eight loaded to the hilt, you will be
driving along and the engine quits, when it does this at the same time
it puts our in the information panel on the dash
Engine Hot A/C disabled

the car will start right back up
the car is not over heating or losing even the slightest bit of
coolant the temp gauge never shows hot

it sometimes will not happen for a few days, sometimes it happens
after 10 minutes sometimes you might be driving the car for hours and
hours (I recently made a trip to and from Florida and it only happened
a few times (some 1200 miles rt)

it is at a shop again 4 different places so far,

what could be causing this?

thanks!

Tom