There could be a few reasons why a 2000 Chevy Impala shuts off while driving. There could be a problem with the fuel pump, a bad spark plug, or even a loose battery cable.
fuel pump might be going out
One issue with a 2001 Chevy Impala hard shifting could be the pressure control solenoid. The car may also need something as simple as more transmission fluid.
I was told it was the camshaft censor
Chevrolet vehicles that feature a 115-inch wheelbase primarily include the Chevy Malibu and the Chevy Impala. The Malibu is a midsize sedan, while the Impala has traditionally been a full-size sedan. These vehicles are designed to offer a balance of comfort and handling, making them suitable for a variety of driving needs.
If your 2000 Ford Expedition shuts off while driving it you should discontinue use of the vehicle immediately. Then have the vehicle towed to your local dealership or mechanic shop to address the problem,
it may be the o2 scensor
Check the fan control
Have engine computer tested
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If the interior lights stay on while driving on a 2002 Impala, there could be a problem with the headlight switch. Check the relay center for the headlights that is just behind the headlight switch.
if no warning and it just shuts down but dash lights and radio light up check ignition switch
A new Fuel pump relay fixed this problem for me.