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1991 Buick Century My vehicle is having problems accelerati

Tiny
SID09
  • MEMBER
  • 1991 BUICK CENTURY
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 126 MILES
Greeatings,
my 1991 Buick century with 126,000 miles is having problems accelerating. The car starts us and pulls off great and runs smooth, but will not exceed 35 mph, even when I try to floor it. The car goes even slower up hills. I have had a full tuneup. Was told the engine and motor are strong, bur the car cannot breathe?
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Sunday, May 16th, 2010 AT 7:47 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 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.
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Monday, May 17th, 2010 AT 2:43 AM

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