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.
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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