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I have a 2000 Silverado 2500 6.0 that is having some hesitation/cutting out on acceleration. It’s weird it seems like if you ease into the throttle it doesn’t cut out but if you mash on the gas it acts like it wants to die. It does it in park and in drive. First noticed it when I was pulling my boat out of the lake and I could barely make it up the boat ramp, it was spitting in sputtering until it eventually seems like it cleared up and started going normal. I replaced the spark plugs, spark plug wires, fuel pump, fuel filter, ran seafoam through the gas, and change the air filter but it seems to not of helped there’s also no check engine light. What could be the issue, thanks!
I just bought a 99 gmc 2500 2wd 5.7. It had water in the fuel when i bought but i have taken the tank off and cleaned the system thoroughly bought new spark plugs and wire and fuel filter I've run two tanks of premium and a can of sea foam in each. in spite of all that the engine is still missing and blowing white smoke. Today i checked the fuel pressure and it is steady at 50 psi. also before i bought the truck it had been sitting up for around a year. not really sure what to do next. thanks