1998 Chevy Lumina engine lacks normal speed

1998 CHEVROLET LUMINA
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TOOCHIE29
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  • 1 POST
Engine Performance problem
1998 Chevy Lumina 6 cyl Front Wheel Drive Automatic

when driving i press the gas but it want pick up speed and i notice black smoke coming out of the tail pipe
May 16, 2010 at 2:24 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Inspect and test all the following listed below and get back with some results

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard.
May 16, 2010 at 4:07 PM
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