Mechanics

CHEVY DRIVES ROUGH, LOSS OF POWER, IDLES FINE

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.
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Avalanche179
December 1, 2010.




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

Rasmataz
Dec 1, 2010.
Ok. Which of those would be the easiest to rule out on my own. Thanks for your time.
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Tiny
Avalanche179
Dec 1, 2010.
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-

Rasmataz
Dec 1, 2010.

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