!996 Chevy Silverado 5.7 starts and idles fine, will not accelerate or get over 40mph.

Asked by Jan 14, 2014 at 10:11 AM about the 1996 Chevrolet C/K 1500 Cheyenne Standard Cab SB 4WD

Question type: Maintenance & Repair

I've changed fuel pump, screen, fuel sending unit, plugs, wires, fuel filter, O2 sensors, throttle position sensor. I don't know what else to do and am about to give up.

4 Answers

18,115

It sounds like the catalytic converter is plugged up in the exhaust.

I hollowed it out, that's not it. I also replaced the EGR valve.

115

It sounds to me the injectors are bad. Runs fine till you hit the gas. Try that and let me know what happens. I had a s-10 do the same thing

18,115

The fuel injection spider on top of the engine is bad or it may have jumped one notch out of time.

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