2000 GMC Sierra bogging down and sputtering

2000 GMC SIERRA
64,000 MILES • V8 • 4WD • AUTOMATIC
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NATER2000
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  • 1 POST
Every time I go and start my truck and then head to work, the engine spits and sputters and almost acts like it is missing or not getiing fuel. If I press the gas harder is just bogs down even more. Usually after the motor warms up, I have no problems. Do you have any suggestions as where to start diagnosing the problem? Also, this morning it didn't start on the first turn of the key, it died on the first turn and then started on the second turn. On the way to work it acted liked it couldn't pull itself. It just bogged down and spit and sputtered. I am needing some help and I can't afford to pay the labor fees associated with finding a problem. There is no code being thrown, so it is now up to me to find the problem. Please help me.....
Aug 26, 2010 at 9:40 AM
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RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
Possible causes:

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.
Aug 26, 2010 at 1:24 PM