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1999 Subaru Legacy car hesitates

Tiny
JANMHARRISON
  • MEMBER
  • 1999 SUBARU LEGACY
  • 6 CYL
  • AWD
  • AUTOMATIC
  • 65,000 MILES
When backing out of driveway at foot of drive. I stop and I put car into drive, the car hesitates and when I take my foot off the accelerator and put it back, on the car lurches. Had it happen in traffic at a red light, no one behind me thank God.

Going to dealer to-morrow what do I need to know?
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Sunday, September 19th, 2010 AT 6:45 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating, jerking, 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.
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 it.
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Sunday, September 19th, 2010 AT 8:32 PM

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