1998 Buick Regal

1998 BUICK REGAL
159,000 MILES • 6 CYL • 2WD • AUTOMATIC
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DERONTEALLEN
  • MEMBER
  • 1 POST
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
Sep 29, 2010 at 12:31 AM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 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.
Sep 29, 2010 at 7:58 PM
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