2000 Chevrolet Silverado



October, 26, 2009 AT 7:35 PM

Engine Mechanical problem
2000 Chevy Silverado V8 Four Wheel Drive Automatic 114000 miles

from time to time as im driving it hasitates like its running out of gas. But when I put in nutral it ideas ok. I have changed the air filter, fuel filter, and gas treatment.


2 Answers



October, 26, 2009 AT 7:40 PM

Could be caused by the following: Oxygen sensor
Catalytic converter
Dirty fuel injectors (cleaning the injectors often fixes this).
Bad MAP (manifold absolute pressure) sensor
Bad TPS (throttle position) sensor
Bad or dirty MAF (mass airflow) sensor
Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
Bad gasoline (fuel contaminated with water or too much alcohol)

Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include: Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
Wet plug wires



October, 26, 2009 AT 9:50 PM

Does your hesitation only occur when accelerating from a stop or is it throughout the driving range? I would lean towards the MAF sensor being at fault here.

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