• Tiny
  • Rdhellraizer
  • 1996 GMC Yukon
  • 4WD
  • automatic
  • 240,000 miles

Engine surges till it reaches running temp

Tuesday, August 9th, 2011 AT 8:23 PM

1 Answer

  • Tiny
  • rasmataz
  • Member

Do you have a check engine light and when was last tune-up??

Refer to this link: http://www.2carpros.com/articles/engine-surges

Could be one of the following below -check and test:

Oxygen sensors.
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.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Was this
Tuesday, August 9th, 2011 AT 8:43 PM

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