Engine

Tiny
GARY_REYNOLDS
  • MEMBER
  • 2003 FORD FOCUS
  • 4 CYL
  • 2WD
  • MANUAL
Ford focus 2004 when accelerating hard engine judders when accelerating slow its fine been doing it a year
Sunday, February 6th, 2011 AT 11:49 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 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.

Note:If it doesn't apply disregard.
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Sunday, February 6th, 2011 AT 11:51 PM

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