Engin no power

Tiny
BULLDOG1965
  • MEMBER
  • 2003 GMC SIERRA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 96,000 MILES
Truck idoling ruogh and when put in drive no power
Wednesday, March 16th, 2011 AT 11:36 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating********, 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.

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 and keep testing.
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Tuesday, June 14th, 2011 AT 5:02 AM

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