2002 Ford Focus What could be Wrong

2002 FORD FOCUS
128,000 MILES • 4 CYL • FWD • AUTOMATIC
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SCOOTER1986
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  • 1 POST
Before i go spend more money on my car, i have replace the fuel filter, coil pack, sparks, and wires. My car still continues to hesitate on the take off and moving acceleration. I have been told by several people that it could be caused by the catalytic converter so in turn i just want to see what all could be wrong before i spend a good chunk of change on a new converter. What could cause the hesitation and bogging out of the motor?
Jul 10, 2010 at 7:56 PM
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RASMATAZ
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  • 75,992 POSTS
Possibilities: Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft 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
Jul 10, 2010 at 8:05 PM