tahoe running horribly

1999 CHEVROLET TAHOE
195 MILES • V8 • 4WD • AUTOMATIC
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AVARHYEN
  • MEMBER
  • 2 POSTS
99 Tahoe shakes and runs rough while in park and while stopped in deive. Just did plugs and wires and the miss that was there before still is somewhat present and seems to even have a back fire .
Jan 16, 2011 at 2:59 AM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
https://www.2carpros.com/articles/engine-misfires-or-runs-rough


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

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-
Jan 16, 2011 at 3:07 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.