sounds like your alternator..
What would cause my VW golf to cut out whist driving
If you mean 'cut off' as in the car dies while driving its probably your alternator.
why does it matter if you're driving down a hill? At least it didn't cut off when you were driving up a hill? And I don't know why it would cut off I'm 13.
main fuel relay going bad. Eventually car will cut off while driving.
One reason a 1998 Cadillac Deville would cut off while driving could be the fuel pump or the car is out of fuel. Another reason could be the spark plugs.
Several things can cause your car to cut off while driving. Run a computer check for possible bad codes to see what may show up as a cause.
From all of my experience with cars if a car turns off while in motion it tends to be the alternator.
No spark .no fuel.
A vacuum leak could cause that. The year, make and engine info would help us help you.
It can lead to an accident
my experiencess with vehicles that cut out while idleing would be a fuel filter or fuel pump problem.
my car cruise just cut off while I was driving can you tell me where the cruise control fuse is is located and what's slot it would be in on the fuse box