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1998 Buick Regal

Tiny
DERONTEALLEN
  • MEMBER
  • 1998 BUICK REGAL
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 159,000 MILES
Fuel pump has been replaced, catalytic converter replaced. Plus wires and spark plugs has been replaced but car seems to be driving sluggish and it cuts off during acceleration. It cranks right back up what seems to be the problem
Wednesday, September 29th, 2010 AT 12:31 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating, jerking, bogging, misfiring etc. Could be caused by one of the following below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock 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 it.
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Wednesday, September 29th, 2010 AT 7:58 PM

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