1994 Chevrolet Suburban Surges and Stumbles When Idling

1994 CHEVROLET SUBURBAN
115,000 MILES • V8 • 4WD • AUTOMATIC
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RNSMCMILLAN
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1994 Chevrolet Suburban 1500 350 TBI occasionally surges up and down when idling after starting and will occasionally stumble when idling at stop lights. What could be the problem?
Feb 18, 2011 at 2:57 AM
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RASMATAZ
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Do you have a check engine light?


Engine running rough or misfiring can be cause by the following:

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

1.Defective spark plugs
2.Inadequate spark/coil,defective spark plug wire.
3.Lack of compression
4.False air leakage.
5.Faulty fuel injectors.
6.Insufficient fuel pressure.
7.Contaminated fuel.
8.EGR valve that is leaking.
9.Oxygen sensors.
10.Throttle position sensor.
11.Manifold absolute pressure sensor
12.Mass Airflow Sensor
13.Idle air control valve

Note: If it doesn't apply disregard it-
Mar 22, 2011 at 2:27 AM
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