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Car Jerking

Tiny
KJBUSH
  • MEMBER
  • 2005 CHEVROLET AVEO
  • 4 CYL
  • AUTOMATIC
  • 92,000 MILES
What could cause my car to***** while driving it? It doesn't***** any more or less while accelerating, slowing down or when in idle. It has new spark plugs, a new timing belt and engine damage has been ruled out by my mechanic.
Friday, July 15th, 2011 AT 2:43 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be one of the following below -check and test:

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.
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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Thursday, August 11th, 2011 AT 10:34 AM

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