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2004 Nissan Sunny Car does not Pickup speed occasionally

Tiny
DEVFCW
  • MEMBER
  • 2004 NISSAN SUNNY
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
Occasionally, my car does not pick up speed after a stop at the junction. Stepping on the accelerator simply revs the engine to more than 3000rpm but the car still moves at 10-20km/hr. I've changed the transmission fluid and spark plugs but problem still persists. I've to pull over and restart the engine, and it'll be back to normal.
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Sunday, May 16th, 2010 AT 10:31 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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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Saturday, May 22nd, 2010 AT 11:37 PM

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