1999 Buick Regal

Tiny
JRSONS1
  • MEMBER
  • 1999 BUICK REGAL
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 150,000 MILES
Why do I loose power on accelleration?
Saturday, January 1st, 2011 AT 7:39 PM

3 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
How long since a tune-up? Any trouble codes? Use a gage and check fuel pressure.
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Saturday, January 1st, 2011 AT 7:41 PM
Tiny
JRSONS1
  • MEMBER
  • 2 POSTS
Just bought vehicle. No service engine light on.
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Saturday, January 1st, 2011 AT 7:47 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check the engine compression if okay-Possibilities long list but worth to try: Check and test

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 and keep testing
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Saturday, January 1st, 2011 AT 8:34 PM

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