1997 Chevy Suburban I think I may have a miss

1997 CHEVROLET SUBURBAN
137,000 MILES • V8 • 4WD • AUTOMATIC
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MWALKER80
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  • 1 POST
When I am driving I think I have a miss at about 1500-1900 RPM, I have replace the plugs, fuel filter, and O2 sensors and it is still slugging at that rpm. I don't know what else to check please help
Feb 22, 2010 at 6:57 PM
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RASMATAZ
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  • 75,992 POSTS
Inspect and test all the following listed below:

Oxygen sensors.
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
Feb 22, 2010 at 7:47 PM