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Transmission or Spark Plugs?

Tiny
JOHNTHESATURN
  • MEMBER
  • 1999 SATURN SL1
  • 4 CYL
  • AUTOMATIC
  • 170,000 MILES
I have a 1999 Saturn SL1. When I try to accelerate, it sputters and almost seems like it will stall. It's an automatic, so I know it shouldn't. It happens after I have stopped (say for a light) and when it changes gears. What could be wrong?
Sunday, December 19th, 2010 AT 10:21 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you have a check engine light? When was the last tune-up don't recall give it a tune-badly needed one will affect the operation of the transmission.

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, December 19th, 2010 AT 11:15 AM

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