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2001 Mazda 626 Car jerks while accelerating

Tiny
DAVINA27
  • MEMBER
  • 2001 MAZDA 626
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 131,000 MILES
Hi I have a 2001 mazda 626 automatic with 131000 miles. While accelerating the car jerks. It is slow to accelerate and from going to from 2nd to 3rd gear it jerks. The engine light came on. I went to a mechanic to check it. He said I just needed new spark plugs. I kind of researched it online and it came up that alot of mazda's have transmisiion problems. So do you think its the transmission.
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Saturday, February 20th, 2010 AT 9:58 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test all the following listed below:

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.
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Saturday, February 20th, 2010 AT 6:12 PM

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