2000 Ford Fiesta My car jerks when I drive

  • 2000 FORD FIESTA
Engine Performance problem
2000 Ford Fiesta 4 cyl Front Wheel Drive Manual

High I have a 2000 Ford Fiesta RSi (I'm from South Africa). Anyway, the problem I have with my car is one it doesn't idle correctly sometime is sits on 1000rpm or just below but still not where I know it should be then other times it will slowly climb when I'm stopped, or anytime I put my foot on the clutch, to 2000rpm. Then when I drive and the speed is consistant and the revs are anywhere below 3000rpm the car would start jerking or almost cut out where it starts slowing down and for a second or two doesn't respond when I press the accelerator then suddenly jerks forward. I've replaced the fuel pump already a few times and the problem persists. Thanks
Do you
have the same problem?
Wednesday, July 28th, 2010 AT 1:27 AM

1 Reply

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
Knock 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 it.
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Wednesday, July 28th, 2010 AT 1:39 AM

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