Jerking while driving 6 mazda v6-3.0l jerking 2006

Q: Jerking while driving

asked by on December 30, 2016

When accelerating, idoling, and going uphill my car will give me random jerking. Typically when I have driven the car for a while? Its like the car wants to move forward then it doesnt.

My car has 147560 miles.
My car has an automatic transmission.

Hi There, What you are describing sounds like a dirty or faulty mass air flow sensor. The mass air flow sensor monitors air intake as it is mixed with fuel prior to being injected into the motor. This sensor relays vital information to the ECM which uses this to make adjustments to fuel supply to the motor. A dirty or faulty sensor can cause an imbalanced air/fuel load to be supplied to the motor which results in an over fueling or under fueling situation depending on the conditions. This type of inconsistent fuel supply to the motor may cause a hesitation, loss of power, a jerking reaction, potentially a bit of black exhaust smoke and typically a strong smell of fuel when this sensor is malfunctioning. I would suggest having a professional from Your Mechanic come to your home to diagnose your mass air flow sensor.

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