surges of power upon acceleration

[Sava]

1997 S-10 4.3 5spd. When accelerating the truck surges and slows and surges again. What could this be?

[TopDogg]

Start witht he little things first.
How about the fuel filter?

[Sava]

No dice with the fuel filter... plugs, wires,?

[MISTER C]

had same problem ,change wires and plugs still had problem ,change oxygen sensor problem went away,also could be clog fuel injector.

[dwinthrup]

have 98 2wd 2.2 same prom i replace primary o2 sensor no luck

[TuckerR1980]

One easy check would be to take one of you gas supply lines and see if your pump is pumping a steady stream or if it's starting to sputter a little. Once you rule out that your getting enough gas to your injectors it narrows things down a little.

[jeeptec]

Just do what i did when i had that problem. i pulled my motor out and am dropping a 350 4 bolt mane in it. no computers or none of that stuff.

[smokey041369]

disconnect the catylic coverter see if that helps and check the fluid level in the trans