1999 Chevrolet Tahoe Acceleration Bog

if you dont have a ses light on i would start by checking the fuel pressure and watching the bleed down , you may have poppet valve stuck or a fuel pressure regulator problem

lmk
jim

[quote:761a77aeac="tcorbitt20"]I have a 1999 Chevrolet Tahoe 4wd with the 5.7 liter v8 with 133,000 miles. I recently began having trouble when I accelerate from stop. As I press the accelerator, it feels as if the engine is "bogging down" and continues until I let off and accelerate slower or until you hear and feel a thump. I've replaced all of the spark plugs, wires and fuel filter, but the problem still persists. What else should I consider? Thanks for the help.[/quote:761a77aeac] i got the same problem before you need to change distrubuitor cap and the rotor too

i also have a 1998 tahoe and seems to do the same thing but only occurs when it gets warmed up. all o2 sensors have been changed and fuel filter, convertors checked out fine also what could it be.