ford focus 1.8tdci misfire

70,000 MILES
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JOHN MCCARTHY
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  • 1 POST
car has a misfire from cold at about 2000 revs, only when cold, strats fine, had service and fuel filter was changed still no joy, almost feels like it is a fuel feed problem, you can drive the car for a mile stop, get out and when you get in it does not do it again, hope you can help, cheers john
Jan 8, 2012 at 9:16 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
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-

Jan 8, 2012 at 9:44 AM
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