a slight miss

95,000 MILES • V8 • 2WD • AUTOMATIC
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LVCATJO
  • MEMBER
  • 1 POST
Ok again. I have changed plugs and wires. It had problems prior. Now it still has a slight miss in it with the exhaust smell. I know it`s fueling but I just don`t know where to start. Would it be an air flow control valve, is it just a simple fuel system cleaning, or is it a vacum hose going bad?
Jun 11, 2011 at 4:07 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Do you have a check engine light on?

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-

Jun 17, 2011 at 1:01 AM
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