What can cause my engine so stutter & engine stalls out

2000 BUICK CENTURY
184,000 MILES
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SEIZ
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I smell gas when I start the car & has a lot of black smoke coming from the exaust pipe. engine will stutter until it goes into second gear sometimes
Jun 25, 2012 at 6:08 PM
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RASMATAZ
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Black smoke indicates a rich fuel mixture could be one of the following below:

1.Excessive fuel pressure can be cause by restricted fuel return line

2.Defective Oxygen Sensors.

3.Leaking injectors and fuel pressure regulator.

4.Coolant temperature sensor out of calibration.

5.Restricted air intake system.
Jun 25, 2012 at 6:16 PM
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SEIZ
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Thank you ill check those things out.
Jun 25, 2012 at 8:30 PM
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SEIZ
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The engine also sounds like it flooded at times when the car stalls out....
Jun 25, 2012 at 8:31 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
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Check and test all of it and report back your testing results for evaluation
Jun 25, 2012 at 11:25 PM
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