Mechanics

WHAT CAN CAUSE MY ENGINE SO STUTTER & ENGINE STALLS OUT

2000 Buick Century • 184,000 miles

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
Avatar
Seiz
June 25, 2012.



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.

Rasmataz
Jun 25, 2012.
Thank you ill check those things out.

Tiny
Seiz
Jun 25, 2012.
The engine also sounds like it flooded at times when the car stalls out.

Tiny
Seiz
Jun 25, 2012.
Check and test all of it and report back your testing results for evaluation

Rasmataz
Jun 25, 2012.