2003 Hyundai Elantra car jerk when warm and moving from low

2003 HYUNDAI ELANTRA
100,200 MILES • 4 CYL • FWD • AUTOMATIC
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DENVER ALDRIDGE
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  • 1 POST
What cause the car to jerk when warm and changing
from low gear to high , could this be cause by a bad
oxygen sensor
Mar 5, 2010 at 2:41 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Jerking,chugging,bogging,hesitating,lack of acceleration etc. could be cause by one of the following below.

Inspect and test all the following listed below and get back with some results.

Oxygen sensor.
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.
Mar 5, 2010 at 4:01 PM
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