A friend of mine has a 1999 Grand Prix GT 4dr 50k miles.
Every once in a while when he is going down the road cruising with the AC on, the car will just die, the RPMs go to zero, all the dash lights come on and then 1-2 seconds go by, it starts back up on its own and everything is back to normal.
What in the heck would cause his car to do this?
There is no squealing coming from the engine bay, so we are assuming the AC compressor is not locking up. AC works fine.
No codes have been set.
Since it only has done it about 2-3 times in the past 4-6 months, driving around with a scanner all the time won't be possible.
What do you guys think?