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2001 Mazda 626

Tiny
LENA1979
  • MEMBER
  • 2001 MAZDA 626
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 158,000 MILES
When I put mmy car in drive it hesitates and jerks and the RPM';s go really high but the speed does not go up. Once I hit 20mph however the car runs fine. Can you tell me if my transmission is going?
Wednesday, April 7th, 2010 AT 10:21 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating, bogging etc. Could be caused 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.
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Thursday, April 8th, 2010 AT 6:45 AM

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