Question about 1999 Chevrolet Silverado 1500

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1999 chevy truck 1500 is sluggish and hesitates

1999 chevy truck 1500 4.3 vortec 5 speed is sluggish in second gear . and hesitates alittle when igo to floor it or take off

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  • danuel_hasti Jul 27, 2009

    changed it, the fuel pump, the spark plugs, wires ,rotor,& cap. the engine light is not on. and hasnt came on at all.

  • danuel_hasti Aug 18, 2009

    ive changed the mass air flow sensor, map, o2 sensors,cap and pin, whole disributor, spider injectors,plenum gasket, fuel filter,pump , pressure tested fuel, vaccum tested at 20psi,cam shaft sensor,plugs.. or do all 4.3 engines have a slight hesitation. running out of things to replace.

  • chevysux1977 May 11, 2010

    Have you changed the fuel filter recently? And is the check engine light on?



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Sound like your catilitic converter is plugged up.

Posted on Jul 27, 2009

  • Donnie Wilson
    Donnie Wilson Jul 28, 2009

    sometimes your converter will be plugged and will not give you a engine light till it gets worse,and then you will oxy fault



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