1993 Buick Century engine bogs down

1993 BUICK CENTURY
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DEXSPAT
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Engine Mechanical problem
1993 Buick Century 6 cyl Front Wheel Drive Automatic

Hello, I use this car for a rural mail route and it runs great for the first 30 miles and then starts to bog down as I accellerate and gets worse. If I turn it off and rest it for 15 minutes, it runs fine for a little while there after.
Mar 2, 2010 at 8:04 PM
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RASMATAZ
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Hesitation,bogging,lack of acceleration,chugging etc. could be one of the following below.

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.
Mar 2, 2010 at 8:09 PM
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