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2002 Chevy Avalanche drives rough, loss of power, idles fine

Tiny
AVALANCHE179
  • MEMBER
  • 2002 CHEVROLET AVALANCHE
  • V8
  • 4WD
  • AUTOMATIC
  • 75,000 MILES
2002 Chevy Avalanche drives rough, loss of power, idles fine. Seems fine at idle and in park when I step on the gas it run smooth but when I accelerate seems to lose power and vibrates the steering wheel. Check engine light is NOT on.
Wednesday, December 1st, 2010 AT 6:08 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
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.
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 it
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Wednesday, December 1st, 2010 AT 6:15 PM
Tiny
AVALANCHE179
  • MEMBER
  • 2 POSTS
Ok. Which of those would be the easiest to rule out on my own. Thanks for your time.
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Wednesday, December 1st, 2010 AT 6:19 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
There's no easy way out of this problem could get complicated its not an easy fix you need to troubleshoot to get to the problem and what caused it-
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Wednesday, December 1st, 2010 AT 6:47 PM

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