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Why would a Buick Riviera stalls restarts again?

1. Fuel Pump Failure: A failing fuel pump can cause the engine to stall, as it is unable to provide enough fuel to the engine. When the fuel pump fails, it can cause the engine to sputter and stall, and then restart after a few minutes.

2. Fuel Filter Clogging: A clogged fuel filter can also cause the engine to stall, as it restricts the flow of fuel to the engine. A clogged fuel filter can cause the engine to sputter and stall, and then restart after a few minutes.

3. Spark Plug Failure: A faulty or worn-out spark plug can cause the engine to stall, as it is unable to provide enough spark to ignite the fuel in the engine. A faulty spark plug can cause the engine to sputter and stall, and then restart after a few minutes.

4. Ignition Coil Failure: A faulty or worn-out ignition coil can cause the engine to stall, as it is unable to provide enough power to the spark plugs. A faulty ignition coil can cause the engine to sputter and stall, and then restart after a few minutes.

5. Computer Sensor Failure: A faulty or damaged computer sensor can cause the engine to stall, as it provides incorrect information to the engine's computer. A faulty computer sensor can cause the engine to sputter and stall, and then restart after a few minutes.