engine

2007 HYUNDAI SONATA
116,000 MILES • 4 CYL • 2WD • AUTOMATIC
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JIMISNOWHERE
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  • 1 POST
ok, so i have a 07 hyundai sonata, 2.4L 4Cyl. and for some reason when i go in the 80-120km speed range, the car seems to stutter a bit...almost like its choking a little...the effects aren't major, but certainly noticeable...any clues as to what it is?
Mar 16, 2011 at 6:08 PM
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RASMATAZ
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  • 75,992 POSTS
Do you have a check engine light on?

Lack of acceleration,chugging,hesitating********,bogging,misfiring etc. could be caused by one of the following 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.
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 and keep testing.
Jun 14, 2011 at 5:11 AM